Necessary changes.

Still not working due to
https://github.com/kubernetes-client/java/issues/3143.

.gitlab-ci.yml

@@ -0,0 +1,78 @@
+stages:
+  - build
+  - test
+  - publish
+  - deploy
+
+.any-job:
+  rules:
+    - if: $CI_SERVER_HOST == "gitlab.mnl.de"
+
+.gradle-job:
+  extends: .any-job
+  image: registry.mnl.de/org/jgrapes/jdk21-builder:v2
+  cache:
+    - key: dependencies-${CI_COMMIT_BRANCH}
+      policy: pull-push  
+      paths:
+        - .gradle
+        - node_modules
+    - key: "$CI_COMMIT_SHA"
+      policy: pull-push
+      paths:
+        - build
+        - "*/build"
+  before_script:
+    - echo -n $CI_REGISTRY_PASSWORD | podman login -u "$CI_REGISTRY_USER" --password-stdin $CI_REGISTRY
+    - git switch $(git branch -r --sort="authordate" --contains $CI_COMMIT_SHA | head -1 | sed -e 's#[^/]*/##')
+    - git pull
+    - git reset --hard $CI_COMMIT_SHA
+  
+build-jars:
+  stage: build
+  extends: .gradle-job  
+  script:
+    - ./gradlew -Pdocker.registry=$CI_REGISTRY_IMAGE build apidocs
+
+publish-images:
+  stage: publish
+  extends: .gradle-job  
+  dependencies:
+    - build-jars
+  script:
+    - ./gradlew -Pdocker.registry=$CI_REGISTRY_IMAGE publishImage
+
+.pages-job:
+  extends: .any-job
+  image: ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/ruby:3.2
+  variables:
+    JEKYLL_ENV: production
+    LC_ALL: C.UTF-8
+  before_script:
+    - git fetch origin gh-pages
+    - git checkout gh-pages
+    - gem install bundler
+    - bundle install
+
+test-pages:
+  stage: test
+  extends: .pages-job
+  rules:
+    - if: $CI_COMMIT_BRANCH == "gh-pages"
+  script:
+    - bundle exec jekyll build -d test
+  artifacts:
+    paths:
+      - test
+      
+#publish-pages:
+#  stage: publish
+#  extends: .pages-job
+#  rules:
+#    - if: $CI_COMMIT_BRANCH == "gh-pages"
+#  script:
+#    - bundle exec jekyll build -d public
+#  artifacts:
+#    paths:
+#      - public
+#  environment: production

.woodpecker/build.yaml

@@ -1,38 +0,0 @@
-when:
-- event: push
-  evaluate: 'CI_SYSTEM_HOST == "woodpecker.mnl.de"'
-
-clone:
-- name: git
-  image: woodpeckerci/plugin-git
-  settings:
-    partial: false
-    tags: true
-    depth: 0
-
-steps:
-- name: prepare
-  image: alpine
-  commands:
-    # Because we run the next step as user 1000 to make podman work:
-    - mkdir /woodpecker/workflow
-    - chown 1000:1000 /woodpecker/workflow
-    - chown -R 1000:1000 $CI_WORKSPACE
-
-- name: build-jars
-  image: registry.mnl.de/mnl/jdk21-builder:v4
-  environment:
-    HOME: /woodpecker/workflow
-    REGISTRY: registry.mnl.de
-    REGISTRY_USER: mnl
-    REGISTRY_TOKEN:
-      from_secret: REGISTRY_TOKEN
-  commands:
-    - echo $REGISTRY_TOKEN | podman login -u $REGISTRY_USER --password-stdin $REGISTRY
-    - ./gradlew -Pdocker.registry=$REGISTRY/$REGISTRY_USER build apidocs publishImage
-  backend_options:
-    kubernetes:
-      securityContext:
-        privileged: true
-        runAsUser: 1000
-        runAsGroup: 1000

dev-example/vmop-agent/gdm/PostLogin/Default

@@ -1,3 +0,0 @@
-#!/bin/sh
-
-sed -i '/AutomaticLogin/d' /etc/gdm/custom.conf

dev-example/vmop-agent/vmop-agent

@@ -72,8 +72,8 @@ doLogin() {
     return
   fi
   
-  # Check if this user is already logged in on tty2
+  # Check if this user is already logged in on tty1
-  curUser=$(loginctl -j | jq -r '.[] | select(.tty=="tty2") | .user')
+  curUser=$(loginctl -j | jq -r '.[] | select(.tty=="tty1") | .user')
   if [ "$curUser" = "$user" ]; then
     echo >&${con} "201 User already logged in"
     return
@@ -96,14 +96,17 @@ doLogin() {
       return
     fi
   fi
-
+  
-  # Configure user as auto login user
+  # Start the desktop for the user
-  sed -i '/AutomaticLogin/d' /etc/gdm/custom.conf
+  systemd-run 2>$temperr \
-  sed -i '/\[daemon\]/a AutomaticLoginEnable=true\nAutomaticLogin='$user \
+    --unit vmop-user-desktop --uid=$uid --gid=$uid \
-    /etc/gdm/custom.conf
+    --working-directory="/home/$user" -p TTYPath=/dev/tty1 \
-
+    -p PAMName=login -p StandardInput=tty -p StandardOutput=journal \
-  # Activate user    
+    -p Conflicts="gdm.service getty@tty1.service" \
-  systemctl restart gdm
+    -E XDG_RUNTIME_DIR="/run/user/$uid" \
+    -E XDG_CURRENT_DESKTOP=GNOME \
+    -p ExecStartPre="/usr/bin/chvt 1" \
+    dbus-run-session -- gnome-shell --display-server --wayland
   if [ $? -eq 0 ]; then
     echo >&${con} "201 User logged in successfully"
   else
@@ -114,8 +117,14 @@ doLogin() {
 # Attempt to log out a user currently using tty1. This is an intermediate
 # operation that can be invoked from other operations
 attemptLogout() {
-  sed -i '/AutomaticLogin/d' /etc/gdm/custom.conf
+  systemctl status vmop-user-desktop > /dev/null 2>&1
-  systemctl stop gdm
+  if [ $? = 0 ]; then
+    systemctl stop vmop-user-desktop
+  fi
+  loginctl -j | jq -r '.[] | select(.tty=="tty1") | .session' \
+  | while read sid; do
+    loginctl kill-session $sid
+  done
   echo >&${con} "102 Desktop stopped"
 }
 
@@ -124,7 +133,15 @@ attemptLogout() {
 # Also try to restart gdm, if it is not running.
 doLogout() {
   attemptLogout
-  systemctl restart gdm
+  systemctl status gdm >/dev/null 2>&1
+  if [ $? != 0 ]; then
+    systemctl restart gdm 2>$temperr
+    if [ $? -eq 0 ]; then
+      echo >&${con} "102 gdm restarted"
+    else
+      echo >&${con} "102 Restarting gdm failed: $(tr '\n' ' ' <${temperr})"
+    fi
+  fi
   echo >&${con} "202 User logged out"
 }
 
@@ -136,7 +153,7 @@ while read line <&${con}; do
 done
 
 onExit() {
-  doLogout
+  attemptLogout
   if [ -n "$temperr" ]; then
     rm -f $temperr
   fi

org.jdrupes.vmoperator.common/build.gradle

@@ -11,7 +11,7 @@ plugins {
 dependencies {
     api project(':org.jdrupes.vmoperator.util')
     api 'org.jgrapes:org.jgrapes.core:[1.22.1,2)'
-    api 'io.kubernetes:client-java:[19.0.0,20.0.0)'
+    api 'io.kubernetes:client-java:[23.0.0,24.0.0)'
     api 'org.yaml:snakeyaml'
     api 'com.fasterxml.jackson.datatype:jackson-datatype-jsr310:[2.16.1,3]'
 }

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/Convertions.java

@@ -32,11 +32,13 @@ import java.util.regex.Pattern;
 public class Convertions {
 
     @SuppressWarnings({ "PMD.UseConcurrentHashMap",
-        "PMD.FieldNamingConventions" })
+        "PMD.FieldNamingConventions", "PMD.VariableNamingConventions" })
     private static final Map<String, BigInteger> unitMap = new HashMap<>();
-    @SuppressWarnings({ "PMD.FieldNamingConventions" })
+    @SuppressWarnings({ "PMD.FieldNamingConventions",
+        "PMD.VariableNamingConventions" })
     private static final List<Map.Entry<String, BigInteger>> unitMappings;
-    @SuppressWarnings({ "PMD.FieldNamingConventions" })
+    @SuppressWarnings({ "PMD.FieldNamingConventions",
+        "PMD.VariableNamingConventions" })
     private static final Pattern memorySize
         = Pattern.compile("^\\s*(\\d+(\\.\\d+)?)\\s*([A-Za-z]*)\\s*");
 
@@ -67,6 +69,7 @@ public class Convertions {
      * @param amount the amount
      * @return the big integer
      */
+    @SuppressWarnings("PMD.DataflowAnomalyAnalysis")
     public static BigInteger parseMemory(Object amount) {
         if (amount == null) {
             return (BigInteger) amount;

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/DynamicTypeAdapterFactory.java

@@ -26,7 +26,7 @@ import com.google.gson.TypeAdapterFactory;
 import com.google.gson.reflect.TypeToken;
 import com.google.gson.stream.JsonReader;
 import com.google.gson.stream.JsonWriter;
-import io.kubernetes.client.openapi.ApiClient;
+import io.kubernetes.client.openapi.JSON;
 import java.io.IOException;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Type;
@@ -45,18 +45,15 @@ public class DynamicTypeAdapterFactory<O extends K8sDynamicModel,
 
     /**
      * Make sure that this adapter is registered.
-     *
-     * @param client the client
      */
-    public void register(ApiClient client) {
+    public void register() {
         if (!ModelCreator.class
-            .equals(client.getJSON().getGson().getAdapter(objectClass)
+            .equals(JSON.getGson().getAdapter(objectClass).getClass())
-                .getClass())
+            || !ModelsCreator.class.equals(JSON.getGson()
-            || !ModelsCreator.class.equals(client.getJSON().getGson()
                 .getAdapter(objectListClass).getClass())) {
-            Gson gson = client.getJSON().getGson();
+            Gson gson = JSON.getGson();
-            client.getJSON().setGson(gson.newBuilder()
+            JSON.setGson(
-                .registerTypeAdapterFactory(this).create());
+                gson.newBuilder().registerTypeAdapterFactory(this).create());
         }
     }
 

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8s.java

@@ -27,6 +27,7 @@ import io.kubernetes.client.common.KubernetesType;
 import io.kubernetes.client.custom.V1Patch;
 import io.kubernetes.client.openapi.ApiClient;
 import io.kubernetes.client.openapi.ApiException;
+import io.kubernetes.client.openapi.JSON;
 import io.kubernetes.client.openapi.apis.EventsV1Api;
 import io.kubernetes.client.openapi.models.EventsV1Event;
 import io.kubernetes.client.openapi.models.V1ObjectMeta;
@@ -47,7 +48,8 @@ import org.yaml.snakeyaml.constructor.SafeConstructor;
 /**
  * Helpers for K8s API.
  */
-@SuppressWarnings({ "PMD.ShortClassName", "PMD.UseUtilityClass" })
+@SuppressWarnings({ "PMD.ShortClassName", "PMD.UseUtilityClass",
+    "PMD.DataflowAnomalyAnalysis" })
 public class K8s {
 
     /**
@@ -112,11 +114,12 @@ public class K8s {
     public static JsonObject yamlToJson(ApiClient client, Reader yaml) {
         // Avoid Yaml.load due to
         // https://github.com/kubernetes-client/java/issues/2741
+        @SuppressWarnings("PMD.UseConcurrentHashMap")
         Map<String, Object> yamlData
             = new Yaml(new SafeConstructor(new LoaderOptions())).load(yaml);
 
         // There's no short-cut from Java (collections) to Gson
-        var gson = client.getJSON().getGson();
+        var gson = JSON.getGson();
         var jsonText = gson.toJson(yamlData);
         return gson.fromJson(jsonText, JsonObject.class);
     }
@@ -243,7 +246,7 @@ public class K8s {
         if (event.getRegarding() == null) {
             event.regarding(objectReference(object));
         }
-        new EventsV1Api(client).createNamespacedEvent(
+        new EventsV1Api(client)
-            object.getMetadata().getNamespace(), event, null, null, null, null);
+            .createNamespacedEvent(object.getMetadata().getNamespace(), event);
     }
 }

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8sClient.java

@@ -31,6 +31,7 @@ import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.lang.reflect.Type;
+import java.net.URI;
 import java.text.DateFormat;
 import java.time.format.DateTimeFormatter;
 import java.util.Collection;
@@ -48,7 +49,8 @@ import okhttp3.Response;
  * A client with some additional properties.
  */
 @SuppressWarnings({ "PMD.ExcessivePublicCount", "PMD.TooManyMethods",
-    "checkstyle:LineLength", "PMD.CouplingBetweenObjects", "PMD.GodClass" })
+    "PMD.LinguisticNaming", "checkstyle:LineLength",
+    "PMD.CouplingBetweenObjects", "PMD.GodClass" })
 public class K8sClient extends ApiClient {
 
     private ApiClient apiClient;
@@ -230,6 +232,7 @@ public class K8sClient extends ApiClient {
      * @return the api client
      * @see ApiClient#setKeyManagers(javax.net.ssl.KeyManager[])
      */
+    @SuppressWarnings("PMD.UseVarargs")
     @Override
     public ApiClient setKeyManagers(KeyManager[] managers) {
         return apiClient().setKeyManagers(managers);
@@ -636,6 +639,7 @@ public class K8sClient extends ApiClient {
      * @return the string
      * @see ApiClient#selectHeaderAccept(java.lang.String[])
      */
+    @SuppressWarnings("PMD.UseVarargs")
     @Override
     public String selectHeaderAccept(String[] accepts) {
         return apiClient().selectHeaderAccept(accepts);
@@ -648,6 +652,7 @@ public class K8sClient extends ApiClient {
      * @return the string
      * @see ApiClient#selectHeaderContentType(java.lang.String[])
      */
+    @SuppressWarnings("PMD.UseVarargs")
     @Override
     public String selectHeaderContentType(String[] contentTypes) {
         return apiClient().selectHeaderContentType(contentTypes);
@@ -800,6 +805,7 @@ public class K8sClient extends ApiClient {
     /**
      * Builds the call.
      *
+     * @param baseUrl the base url
      * @param path the path
      * @param method the method
      * @param queryParams the query params
@@ -814,14 +820,15 @@ public class K8sClient extends ApiClient {
      * @throws ApiException the api exception
      * @see ApiClient#buildCall(java.lang.String, java.lang.String, java.util.List, java.util.List, java.lang.Object, java.util.Map, java.util.Map, java.util.Map, java.lang.String[], io.kubernetes.client.openapi.ApiCallback)
      */
-    @SuppressWarnings({ "rawtypes" })
+    @SuppressWarnings({ "rawtypes", "PMD.ExcessiveParameterList" })
     @Override
-    public Call buildCall(String path, String method, List<Pair> queryParams,
+    public Call buildCall(String baseUrl, String path, String method,
-            List<Pair> collectionQueryParams, Object body,
+            List<Pair> queryParams, List<Pair> collectionQueryParams,
-            Map<String, String> headerParams, Map<String, String> cookieParams,
+            Object body, Map<String, String> headerParams,
-            Map<String, Object> formParams, String[] authNames,
+            Map<String, String> cookieParams, Map<String, Object> formParams,
+            String[] authNames,
             ApiCallback callback) throws ApiException {
-        return apiClient().buildCall(path, method, queryParams,
+        return apiClient().buildCall(baseUrl, path, method, queryParams,
             collectionQueryParams, body, headerParams, cookieParams, formParams,
             authNames, callback);
     }
@@ -829,6 +836,7 @@ public class K8sClient extends ApiClient {
     /**
      * Builds the request.
      *
+     * @param baseUrl the base url
      * @param path the path
      * @param method the method
      * @param queryParams the query params
@@ -843,14 +851,14 @@ public class K8sClient extends ApiClient {
      * @throws ApiException the api exception
      * @see ApiClient#buildRequest(java.lang.String, java.lang.String, java.util.List, java.util.List, java.lang.Object, java.util.Map, java.util.Map, java.util.Map, java.lang.String[], io.kubernetes.client.openapi.ApiCallback)
      */
-    @SuppressWarnings({ "rawtypes" })
+    @SuppressWarnings({ "rawtypes", "PMD.ExcessiveParameterList" })
     @Override
-    public Request buildRequest(String path, String method,
+    public Request buildRequest(String baseUrl, String path, String method,
             List<Pair> queryParams, List<Pair> collectionQueryParams,
             Object body, Map<String, String> headerParams,
             Map<String, String> cookieParams, Map<String, Object> formParams,
             String[] authNames, ApiCallback callback) throws ApiException {
-        return apiClient().buildRequest(path, method, queryParams,
+        return apiClient().buildRequest(baseUrl, path, method, queryParams,
             collectionQueryParams, body, headerParams, cookieParams, formParams,
             authNames, callback);
     }
@@ -858,6 +866,7 @@ public class K8sClient extends ApiClient {
     /**
      * Builds the url.
      *
+     * @param baseUrl the base url
      * @param path the path
      * @param queryParams the query params
      * @param collectionQueryParams the collection query params
@@ -865,9 +874,10 @@ public class K8sClient extends ApiClient {
      * @see ApiClient#buildUrl(java.lang.String, java.util.List, java.util.List)
      */
     @Override
-    public String buildUrl(String path, List<Pair> queryParams,
+    public String buildUrl(String baseUrl, String path, List<Pair> queryParams,
             List<Pair> collectionQueryParams) {
-        return apiClient().buildUrl(path, queryParams, collectionQueryParams);
+        return apiClient().buildUrl(baseUrl, path, queryParams,
+            collectionQueryParams);
     }
 
     /**
@@ -903,14 +913,15 @@ public class K8sClient extends ApiClient {
      * @param queryParams the query params
      * @param headerParams the header params
      * @param cookieParams the cookie params
+     * @throws ApiException 
      * @see ApiClient#updateParamsForAuth(java.lang.String[], java.util.List, java.util.Map, java.util.Map)
      */
     @Override
     public void updateParamsForAuth(String[] authNames, List<Pair> queryParams,
-            Map<String, String> headerParams,
+            Map<String, String> headerParams, Map<String, String> cookieParams,
-            Map<String, String> cookieParams) {
+            String payload, String method, URI uri) throws ApiException {
         apiClient().updateParamsForAuth(authNames, queryParams, headerParams,
-            cookieParams);
+            cookieParams, payload, method, uri);
     }
 
     /**

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8sClusterGenericStub.java

@@ -45,7 +45,8 @@ import java.util.function.Function;
  * @param <O> the generic type
  * @param <L> the generic type
  */
-@SuppressWarnings({ "PMD.CouplingBetweenObjects" })
+@SuppressWarnings({ "PMD.DataflowAnomalyAnalysis",
+    "PMD.CouplingBetweenObjects" })
 public class K8sClusterGenericStub<O extends KubernetesObject,
         L extends KubernetesListObject> {
     protected final K8sClient client;
@@ -254,6 +255,7 @@ public class K8sClusterGenericStub<O extends KubernetesObject,
          * @param name the name
          * @return the result
          */
+        @SuppressWarnings("PMD.UseObjectForClearerAPI")
         R get(Class<O> objectClass, Class<L> objectListClass, K8sClient client,
                 APIResource context, String name);
     }
@@ -282,6 +284,7 @@ public class K8sClusterGenericStub<O extends KubernetesObject,
      * @return the stub if the object exists
      * @throws ApiException the api exception
      */
+    @SuppressWarnings({ "PMD.AvoidBranchingStatementAsLastInLoop" })
     public static <O extends KubernetesObject, L extends KubernetesListObject,
             R extends K8sClusterGenericStub<O, L>>
             R get(Class<O> objectClass, Class<L> objectListClass,
@@ -312,6 +315,8 @@ public class K8sClusterGenericStub<O extends KubernetesObject,
      * @return the stub if the object exists
      * @throws ApiException the api exception
      */
+    @SuppressWarnings({ "PMD.AvoidBranchingStatementAsLastInLoop",
+        "PMD.UseObjectForClearerAPI" })
     public static <O extends KubernetesObject, L extends KubernetesListObject,
             R extends K8sClusterGenericStub<O, L>>
             R get(Class<O> objectClass, Class<L> objectListClass,
@@ -336,6 +341,8 @@ public class K8sClusterGenericStub<O extends KubernetesObject,
      * @return the stub if the object exists
      * @throws ApiException the api exception
      */
+    @SuppressWarnings({ "PMD.AvoidBranchingStatementAsLastInLoop",
+        "PMD.AvoidInstantiatingObjectsInLoops", "PMD.UseObjectForClearerAPI" })
     public static <O extends KubernetesObject, L extends KubernetesListObject,
             R extends K8sClusterGenericStub<O, L>>
             R create(Class<O> objectClass, Class<L> objectListClass,

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8sDynamicModel.java

@@ -29,6 +29,7 @@ import io.kubernetes.client.openapi.models.V1ObjectMeta;
  * notably the metadata, is made available through the methods
  * defined by {@link KubernetesObject}.
  */
+@SuppressWarnings("PMD.DataClass")
 public class K8sDynamicModel implements KubernetesObject {
 
     private final V1ObjectMeta metadata;

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8sDynamicModelsBase.java

@@ -22,7 +22,7 @@ import com.google.gson.Gson;
 import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
 import io.kubernetes.client.common.KubernetesListObject;
-import io.kubernetes.client.openapi.Configuration;
+import io.kubernetes.client.openapi.JSON;
 import io.kubernetes.client.openapi.models.V1ListMeta;
 import java.lang.reflect.InvocationTargetException;
 import java.util.ArrayList;
@@ -62,7 +62,7 @@ public class K8sDynamicModelsBase<T extends K8sDynamicModel>
             } catch (InstantiationException | IllegalAccessException
                     | IllegalArgumentException | InvocationTargetException
                     | NoSuchMethodException | SecurityException exc) {
-                throw new IllegalArgumentException(exc);
+                throw new IllegalArgumentException(exc); // NOPMD
             }
         }
     }
@@ -147,9 +147,7 @@ public class K8sDynamicModelsBase<T extends K8sDynamicModel>
      * @param objectMeta the new metadata
      */
     public void setMetadata(V1ListMeta objectMeta) {
-        data.add("metadata",
+        data.add("metadata", JSON.getGson().toJsonTree(objectMeta));
-            Configuration.getDefaultApiClient().getJSON().getGson()
-                .toJsonTree(objectMeta));
     }
 
     @Override

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8sDynamicStub.java

@@ -21,6 +21,7 @@ package org.jdrupes.vmoperator.common;
 import io.kubernetes.client.Discovery.APIResource;
 import io.kubernetes.client.apimachinery.GroupVersionKind;
 import io.kubernetes.client.openapi.ApiException;
+import io.kubernetes.client.openapi.JSON;
 import io.kubernetes.client.util.generic.options.ListOptions;
 import java.io.Reader;
 import java.util.Collection;
@@ -31,6 +32,7 @@ import java.util.Collection;
  * state and can therefore be used for any kind of object, especially
  * custom objects.
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class K8sDynamicStub
         extends K8sDynamicStubBase<K8sDynamicModel, K8sDynamicModels> {
 
@@ -63,6 +65,8 @@ public class K8sDynamicStub
      * @return the stub if the object exists
      * @throws ApiException the api exception
      */
+    @SuppressWarnings({ "PMD.AvoidBranchingStatementAsLastInLoop",
+        "PMD.AvoidInstantiatingObjectsInLoops", "PMD.UseObjectForClearerAPI" })
     public static K8sDynamicStub get(K8sClient client,
             GroupVersionKind gvk, String namespace, String name)
             throws ApiException {
@@ -80,6 +84,8 @@ public class K8sDynamicStub
      * @return the stub if the object exists
      * @throws ApiException the api exception
      */
+    @SuppressWarnings({ "PMD.AvoidBranchingStatementAsLastInLoop",
+        "PMD.AvoidInstantiatingObjectsInLoops", "PMD.UseObjectForClearerAPI" })
     public static K8sDynamicStub get(K8sClient client,
             APIResource context, String namespace, String name) {
         return new K8sDynamicStub(client, context, namespace, name);
@@ -96,8 +102,8 @@ public class K8sDynamicStub
      */
     public static K8sDynamicStub createFromYaml(K8sClient client,
             APIResource context, Reader yaml) throws ApiException {
-        var model = new K8sDynamicModel(client.getJSON().getGson(),
+        var model
-            K8s.yamlToJson(client, yaml));
+            = new K8sDynamicModel(JSON.getGson(), K8s.yamlToJson(client, yaml));
         return K8sGenericStub.create(K8sDynamicModel.class,
             K8sDynamicModels.class, client, context, model,
             (c, ns, n) -> new K8sDynamicStub(c, context, ns, n));

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8sDynamicStubBase.java

@@ -26,6 +26,7 @@ import io.kubernetes.client.Discovery.APIResource;
  * state and can therefore be used for any kind of object, especially
  * custom objects.
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public abstract class K8sDynamicStubBase<O extends K8sDynamicModel,
         L extends K8sDynamicModelsBase<O>> extends K8sGenericStub<O, L> {
 
@@ -39,11 +40,12 @@ public abstract class K8sDynamicStubBase<O extends K8sDynamicModel,
      * @param namespace the namespace
      * @param name the name
      */
+    @SuppressWarnings("PMD.ConstructorCallsOverridableMethod")
     public K8sDynamicStubBase(Class<O> objectClass,
             Class<L> objectListClass, DynamicTypeAdapterFactory<O, L> taf,
             K8sClient client, APIResource context, String namespace,
             String name) {
         super(objectClass, objectListClass, client, context, namespace, name);
-        taf.register(client);
+        taf.register();
     }
 }

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8sGenericStub.java

@@ -24,6 +24,7 @@ import io.kubernetes.client.common.KubernetesListObject;
 import io.kubernetes.client.common.KubernetesObject;
 import io.kubernetes.client.custom.V1Patch;
 import io.kubernetes.client.openapi.ApiException;
+import io.kubernetes.client.openapi.JSON;
 import io.kubernetes.client.util.Strings;
 import io.kubernetes.client.util.generic.GenericKubernetesApi;
 import io.kubernetes.client.util.generic.KubernetesApiResponse;
@@ -48,7 +49,7 @@ import java.util.function.Function;
  * @param <O> the generic type
  * @param <L> the generic type
  */
-@SuppressWarnings({ "PMD.TooManyMethods" })
+@SuppressWarnings({ "PMD.DataflowAnomalyAnalysis", "PMD.TooManyMethods" })
 public class K8sGenericStub<O extends KubernetesObject,
         L extends KubernetesListObject> {
     protected final K8sClient client;
@@ -200,6 +201,7 @@ public class K8sGenericStub<O extends KubernetesObject,
      * @return the updated model or empty if the object was not found
      * @throws ApiException the api exception
      */
+    @SuppressWarnings("PMD.AssignmentInOperand")
     public Optional<O> updateStatus(O object, Function<O, Object> updater)
             throws ApiException {
         return K8s.optional(api.updateStatus(object, updater));
@@ -217,7 +219,7 @@ public class K8sGenericStub<O extends KubernetesObject,
      * @return the updated model or empty if the object was not found
      * @throws ApiException the api exception
      */
-    @SuppressWarnings({ "PMD.AssignmentInOperand" })
+    @SuppressWarnings({ "PMD.AssignmentInOperand", "PMD.UnusedAssignment" })
     public Optional<O> updateStatus(Function<O, Object> updater, O current,
             int retries) throws ApiException {
         while (true) {
@@ -247,6 +249,7 @@ public class K8sGenericStub<O extends KubernetesObject,
      * @return the updated model or empty if the object was not found
      * @throws ApiException the api exception
      */
+    @SuppressWarnings({ "PMD.AssignmentInOperand", "PMD.UnusedAssignment" })
     public Optional<O> updateStatus(Function<O, Object> updater, int retries)
             throws ApiException {
         return updateStatus(updater, null, retries);
@@ -323,7 +326,7 @@ public class K8sGenericStub<O extends KubernetesObject,
         opts.setForce(true);
         opts.setFieldManager("kubernetes-java-kubectl-apply");
         return patch(V1Patch.PATCH_FORMAT_APPLY_YAML,
-            new V1Patch(client.getJSON().serialize(def)), opts);
+            new V1Patch(JSON.serialize(def)), opts);
     }
 
     /**
@@ -369,6 +372,7 @@ public class K8sGenericStub<O extends KubernetesObject,
          * @param name the name
          * @return the result
          */
+        @SuppressWarnings("PMD.UseObjectForClearerAPI")
         R get(K8sClient client, String namespace, String name);
     }
 
@@ -394,6 +398,8 @@ public class K8sGenericStub<O extends KubernetesObject,
      * @return the stub if the object exists
      * @throws ApiException the api exception
      */
+    @SuppressWarnings({ "PMD.AvoidBranchingStatementAsLastInLoop",
+        "PMD.AvoidInstantiatingObjectsInLoops", "PMD.UseObjectForClearerAPI" })
     public static <O extends KubernetesObject, L extends KubernetesListObject,
             R extends K8sGenericStub<O, L>>
             R create(Class<O> objectClass, Class<L> objectListClass,

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8sObserver.java

@@ -50,6 +50,7 @@ public class K8sObserver<O extends KubernetesObject,
         ADDED, MODIFIED, DELETED
     }
 
+    @SuppressWarnings("PMD.FieldNamingConventions")
     protected final Logger logger = Logger.getLogger(getClass().getName());
 
     protected final K8sClient client;
@@ -72,7 +73,8 @@ public class K8sObserver<O extends KubernetesObject,
      * @param namespace the namespace
      * @param options the options
      */
-    @SuppressWarnings({ "PMD.AvoidCatchingThrowable",
+    @SuppressWarnings({ "PMD.AvoidBranchingStatementAsLastInLoop",
+        "PMD.UseObjectForClearerAPI", "PMD.AvoidCatchingThrowable",
         "PMD.CognitiveComplexity", "PMD.AvoidCatchingGenericException" })
     public K8sObserver(Class<O> objectClass, Class<L> objectListClass,
             K8sClient client, APIResource context, String namespace,
@@ -98,6 +100,7 @@ public class K8sObserver<O extends KubernetesObject,
                     while (!Thread.currentThread().isInterrupted()) {
                         Instant startedAt = Instant.now();
                         try {
+                            @SuppressWarnings("PMD.AvoidInstantiatingObjectsInLoops")
                             var changed
                                 = api.watch(namespace, options).iterator();
                             while (changed.hasNext()) {
@@ -230,6 +233,7 @@ public class K8sObserver<O extends KubernetesObject,
     }
 
     @Override
+    @SuppressWarnings("PMD.UseLocaleWithCaseConversions")
     public String toString() {
         return "Observer for " + K8s.toString(context) + " " + namespace;
     }

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8sV1ConfigMapStub.java

@@ -26,6 +26,7 @@ import java.util.List;
 /**
  * A stub for config maps (v1).
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class K8sV1ConfigMapStub
         extends K8sGenericStub<V1ConfigMap, V1ConfigMapList> {
 

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8sV1DeploymentStub.java

@@ -29,6 +29,7 @@ import java.util.Optional;
 /**
  * A stub for pods (v1).
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class K8sV1DeploymentStub
         extends K8sGenericStub<V1Deployment, V1DeploymentList> {
 

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8sV1NodeStub.java

@@ -29,6 +29,7 @@ import java.util.List;
 /**
  * A stub for nodes (v1).
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class K8sV1NodeStub extends K8sClusterGenericStub<V1Node, V1NodeList> {
 
     public static final APIResource CONTEXT = new APIResource("", List.of("v1"),
@@ -73,7 +74,8 @@ public class K8sV1NodeStub extends K8sClusterGenericStub<V1Node, V1NodeList> {
     /**
      * Provide {@link GenericSupplier}.
      */
-    @SuppressWarnings({ "PMD.UnusedFormalParameter" })
+    @SuppressWarnings({ "PMD.UnusedFormalParameter",
+        "PMD.UnusedPrivateMethod" })
     private static K8sV1NodeStub getGeneric(Class<V1Node> objectClass,
             Class<V1NodeList> objectListClass, K8sClient client,
             APIResource context, String name) {

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8sV1PodStub.java

@@ -29,6 +29,7 @@ import java.util.List;
 /**
  * A stub for pods (v1).
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class K8sV1PodStub extends K8sGenericStub<V1Pod, V1PodList> {
 
     /** The pods' context. */

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8sV1PvcStub.java

@@ -29,6 +29,7 @@ import java.util.List;
 /**
  * A stub for pods (v1).
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class K8sV1PvcStub extends
         K8sGenericStub<V1PersistentVolumeClaim, V1PersistentVolumeClaimList> {
 

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8sV1SecretStub.java

@@ -29,6 +29,7 @@ import java.util.List;
 /**
  * A stub for secrets (v1).
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class K8sV1SecretStub extends K8sGenericStub<V1Secret, V1SecretList> {
 
     public static final APIResource CONTEXT = new APIResource("", List.of("v1"),

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8sV1ServiceStub.java

@@ -29,6 +29,7 @@ import java.util.List;
 /**
  * A stub for secrets (v1).
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class K8sV1ServiceStub extends K8sGenericStub<V1Service, V1ServiceList> {
 
     public static final APIResource CONTEXT = new APIResource("", List.of("v1"),

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/K8sV1StatefulSetStub.java

@@ -26,6 +26,7 @@ import java.util.List;
 /**
  * A stub for stateful sets (v1).
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class K8sV1StatefulSetStub
         extends K8sGenericStub<V1StatefulSet, V1StatefulSetList> {
 

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/VmDefinition.java

@@ -46,14 +46,15 @@ import org.jdrupes.vmoperator.util.DataPath;
 /**
  * Represents a VM definition.
  */
-@SuppressWarnings({ "PMD.DataClass", "PMD.TooManyMethods" })
+@SuppressWarnings({ "PMD.DataClass", "PMD.TooManyMethods",
+    "PMD.CouplingBetweenObjects" })
 public class VmDefinition extends K8sDynamicModel {
 
-    @SuppressWarnings({ "unused" })
+    @SuppressWarnings({ "PMD.FieldNamingConventions", "unused" })
     private static final Logger logger
         = Logger.getLogger(VmDefinition.class.getName());
     @SuppressWarnings("PMD.FieldNamingConventions")
-    private static final Gson gson = new JSON().getGson();
+    private static final Gson gson = JSON.getGson();
     @SuppressWarnings("PMD.FieldNamingConventions")
     private static final ObjectMapper objectMapper
         = new ObjectMapper().registerModule(new JavaTimeModule());

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/VmDefinitionStub.java

@@ -21,6 +21,7 @@ package org.jdrupes.vmoperator.common;
 import io.kubernetes.client.Discovery.APIResource;
 import io.kubernetes.client.apimachinery.GroupVersionKind;
 import io.kubernetes.client.openapi.ApiException;
+import io.kubernetes.client.openapi.JSON;
 import io.kubernetes.client.util.generic.options.ListOptions;
 import java.io.Reader;
 import java.util.Collection;
@@ -31,6 +32,7 @@ import java.util.Collection;
  * state and can therefore be used for any kind of object, especially
  * custom objects.
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class VmDefinitionStub
         extends K8sDynamicStubBase<VmDefinition, VmDefinitions> {
 
@@ -63,6 +65,8 @@ public class VmDefinitionStub
      * @return the stub if the object exists
      * @throws ApiException the api exception
      */
+    @SuppressWarnings({ "PMD.AvoidBranchingStatementAsLastInLoop",
+        "PMD.AvoidInstantiatingObjectsInLoops", "PMD.UseObjectForClearerAPI" })
     public static VmDefinitionStub get(K8sClient client,
             GroupVersionKind gvk, String namespace, String name)
             throws ApiException {
@@ -80,6 +84,8 @@ public class VmDefinitionStub
      * @return the stub if the object exists
      * @throws ApiException the api exception
      */
+    @SuppressWarnings({ "PMD.AvoidBranchingStatementAsLastInLoop",
+        "PMD.AvoidInstantiatingObjectsInLoops", "PMD.UseObjectForClearerAPI" })
     public static VmDefinitionStub get(K8sClient client,
             APIResource context, String namespace, String name) {
         return new VmDefinitionStub(client, context, namespace, name);
@@ -96,8 +102,8 @@ public class VmDefinitionStub
      */
     public static VmDefinitionStub createFromYaml(K8sClient client,
             APIResource context, Reader yaml) throws ApiException {
-        var model = new VmDefinition(client.getJSON().getGson(),
+        var model
-            K8s.yamlToJson(client, yaml));
+            = new VmDefinition(JSON.getGson(), K8s.yamlToJson(client, yaml));
         return K8sGenericStub.create(VmDefinition.class,
             VmDefinitions.class, client, context, model,
             (c, ns, n) -> new VmDefinitionStub(c, context, ns, n));

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/VmExtraData.java

@@ -34,6 +34,7 @@ import java.util.logging.Logger;
  */
 public class VmExtraData {
 
+    @SuppressWarnings("PMD.FieldNamingConventions")
     private static final Logger logger
         = Logger.getLogger(VmExtraData.class.getName());
 

org.jdrupes.vmoperator.common/src/org/jdrupes/vmoperator/common/VmPool.java

@@ -35,6 +35,7 @@ import org.jdrupes.vmoperator.util.DataPath;
 /**
  * Represents a VM pool.
  */
+@SuppressWarnings({ "PMD.DataClass" })
 public class VmPool {
 
     private final String name;

org.jdrupes.vmoperator.manager.events/src/org/jdrupes/vmoperator/manager/events/AssignVm.java

@@ -24,6 +24,7 @@ import org.jgrapes.core.Event;
 /**
  * Assign a VM from a pool to a user.
  */
+@SuppressWarnings("PMD.DataClass")
 public class AssignVm extends Event<VmData> {
 
     private final String fromPool;

org.jdrupes.vmoperator.manager.events/src/org/jdrupes/vmoperator/manager/events/ChannelDictionary.java

@@ -43,6 +43,7 @@ public interface ChannelDictionary<K, C extends Channel, A> {
      * @param channel the channel
      * @param associated the associated
      */
+    @SuppressWarnings("PMD.ShortClassName")
     public record Value<C extends Channel, A>(C channel, A associated) {
     }
 

org.jdrupes.vmoperator.manager.events/src/org/jdrupes/vmoperator/manager/events/ChannelManager.java

@@ -149,6 +149,8 @@ public class ChannelManager<K, C extends Channel, A>
      * @param supplier the supplier
      * @return the channel
      */
+    @SuppressWarnings({ "PMD.AssignmentInOperand",
+        "PMD.DataflowAnomalyAnalysis" })
     public C computeIfAbsent(K key, Function<K, C> supplier) {
         return entries.computeIfAbsent(key,
             k -> new Value<>(supplier.apply(k), null)).channel();

org.jdrupes.vmoperator.manager.events/src/org/jdrupes/vmoperator/manager/events/GetDisplaySecret.java

@@ -24,6 +24,7 @@ import org.jgrapes.core.Event;
 /**
  * Gets the current display secret and optionally updates it.
  */
+@SuppressWarnings("PMD.DataClass")
 public class GetDisplaySecret extends Event<String> {
 
     private final VmDefinition vmDef;

org.jdrupes.vmoperator.manager.events/src/org/jdrupes/vmoperator/manager/events/GetPools.java

@@ -27,6 +27,7 @@ import org.jgrapes.core.Event;
 /**
  * Gets the known pools' definitions.
  */
+@SuppressWarnings("PMD.DataClass")
 public class GetPools extends Event<List<VmPool>> {
 
     private String name;

org.jdrupes.vmoperator.manager.events/src/org/jdrupes/vmoperator/manager/events/GetVms.java

@@ -27,6 +27,7 @@ import org.jgrapes.core.Event;
 /**
  * Gets the known VMs' definitions and channels.
  */
+@SuppressWarnings("PMD.DataClass")
 public class GetVms extends Event<List<GetVms.VmData>> {
 
     private String name;

org.jdrupes.vmoperator.manager.events/src/org/jdrupes/vmoperator/manager/events/ModifyVm.java

@@ -24,6 +24,7 @@ import org.jgrapes.core.Event;
 /**
  * Modifies a VM.
  */
+@SuppressWarnings("PMD.DataClass")
 public class ModifyVm extends Event<Void> {
 
     private final String name;

org.jdrupes.vmoperator.manager.events/src/org/jdrupes/vmoperator/manager/events/ResetVm.java

@@ -23,6 +23,7 @@ import org.jgrapes.core.Event;
 /**
  * Triggers a reset of the VM.
  */
+@SuppressWarnings("PMD.DataClass")
 public class ResetVm extends Event<String> {
 
     private final String vmName;

org.jdrupes.vmoperator.manager.events/src/org/jdrupes/vmoperator/manager/events/UpdateAssignment.java

@@ -24,6 +24,7 @@ import org.jgrapes.core.Event;
 /**
  * Note the assignment to a user in the VM status.
  */
+@SuppressWarnings("PMD.DataClass")
 public class UpdateAssignment extends Event<Boolean> {
 
     private final VmPool fromPool;

org.jdrupes.vmoperator.manager.events/src/org/jdrupes/vmoperator/manager/events/VmChannel.java

@@ -28,6 +28,7 @@ import org.jgrapes.core.Subchannel.DefaultSubchannel;
 /**
  * A subchannel used to send the events related to a specific VM.
  */
+@SuppressWarnings("PMD.DataClass")
 public class VmChannel extends DefaultSubchannel {
 
     private final EventPipeline pipeline;
@@ -55,6 +56,7 @@ public class VmChannel extends DefaultSubchannel {
      * @param definition the definition
      * @return the watch channel
      */
+    @SuppressWarnings("PMD.LinguisticNaming")
     public VmChannel setVmDefinition(VmDefinition definition) {
         this.definition = definition;
         return this;
@@ -85,6 +87,7 @@ public class VmChannel extends DefaultSubchannel {
      * @param generation the generation to set
      * @return true if value has changed
      */
+    @SuppressWarnings("PMD.LinguisticNaming")
     public boolean setGeneration(long generation) {
         if (this.generation == generation) {
             return false;

org.jdrupes.vmoperator.manager.events/src/org/jdrupes/vmoperator/manager/events/VmPoolChanged.java

@@ -26,6 +26,7 @@ import org.jgrapes.core.Event;
 /**
  * Indicates a change in a pool configuration. 
  */
+@SuppressWarnings("PMD.DataClass")
 public class VmPoolChanged extends Event<Void> {
 
     private final VmPool vmPool;

org.jdrupes.vmoperator.manager/build.gradle

@@ -17,7 +17,7 @@ dependencies {
     implementation 'org.jgrapes:org.jgrapes.io:[2.12.1,3)'
     implementation 'org.jgrapes:org.jgrapes.http:[3.5.0,4)'
     
-    implementation 'org.jgrapes:org.jgrapes.webconsole.base:[2.3.0,3)'
+    implementation 'org.jgrapes:org.jgrapes.webconsole.base:[2.2.0,3)'
     implementation 'org.jgrapes:org.jgrapes.webconsole.vuejs:[1.8.0,2)'
     implementation 'org.jgrapes:org.jgrapes.webconsole.rbac:[1.4.0,2)'
     implementation 'org.jgrapes:org.jgrapes.webconlet.oidclogin:[1.7.0,2)'

org.jdrupes.vmoperator.manager/resources/org/jdrupes/vmoperator/manager/runnerConfig.ftl.yaml

@@ -37,7 +37,7 @@ data:
       # The template to use. Resolved relative to /usr/share/vmrunner/templates.
       # template: "Standard-VM-latest.ftl.yaml"
       <#if spec.runnerTemplate?? && spec.runnerTemplate.source?? >
-      template: ${ spec.runnerTemplate.source }
+      template: ${ cm.spec().runnerTemplate.source }
       </#if>
     
       # The template is copied to the data diretory when the VM starts for

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/AbstractMonitor.java

@@ -51,6 +51,7 @@ import org.jgrapes.util.events.ConfigurationUpdate;
  * @param <O> the object type for the context
  * @param <L> the object list type for the context
  */
+@SuppressWarnings({ "PMD.DataflowAnomalyAnalysis" })
 public abstract class AbstractMonitor<O extends KubernetesObject,
         L extends KubernetesListObject, C extends Channel> extends Component {
 
@@ -180,6 +181,7 @@ public abstract class AbstractMonitor<O extends KubernetesObject,
      * @param event the event
      */
     @Handler(priority = 10)
+    @SuppressWarnings("PMD.AvoidInstantiatingObjectsInLoops")
     public void onStart(Start event) {
         try {
             // Get namespace

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/ConfigMapReconciler.java

@@ -56,6 +56,7 @@ import org.yaml.snakeyaml.constructor.SafeConstructor;
 /**
  * Delegee for reconciling the config map
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 /* default */ class ConfigMapReconciler {
 
     protected final Logger logger = Logger.getLogger(getClass().getName());
@@ -80,6 +81,7 @@ import org.yaml.snakeyaml.constructor.SafeConstructor;
      * @throws TemplateException the template exception
      * @throws ApiException the API exception
      */
+    @SuppressWarnings("PMD.AvoidDuplicateLiterals")
     public void reconcile(Map<String, Object> model, VmChannel channel,
             boolean modelChanged)
             throws IOException, TemplateException, ApiException {
@@ -187,6 +189,7 @@ import org.yaml.snakeyaml.constructor.SafeConstructor;
     private final TemplateMethodModelEx adjustCloudInitMetaModel
         = new TemplateMethodModelEx() {
             @Override
+            @SuppressWarnings("PMD.PreserveStackTrace")
             public Object exec(@SuppressWarnings("rawtypes") List arguments)
                     throws TemplateModelException {
                 @SuppressWarnings("unchecked")

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/Constants.java

@@ -21,6 +21,7 @@ package org.jdrupes.vmoperator.manager;
 /**
  * Some constants.
  */
+@SuppressWarnings("PMD.DataClass")
 public class Constants extends org.jdrupes.vmoperator.common.Constants {
 
     /** The Constant STATE_RUNNING. */

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/Controller.java

@@ -50,7 +50,6 @@ import org.jdrupes.vmoperator.manager.events.VmPoolChanged;
 import org.jdrupes.vmoperator.manager.events.VmResourceChanged;
 import org.jgrapes.core.Channel;
 import org.jgrapes.core.Component;
-import org.jgrapes.core.EventPipeline;
 import org.jgrapes.core.annotation.Handler;
 import org.jgrapes.core.events.HandlingError;
 import org.jgrapes.core.events.Start;
@@ -95,7 +94,7 @@ import org.jgrapes.util.events.ConfigurationUpdate;
 public class Controller extends Component {
 
     private String namespace;
-    private final ChannelManager<String, VmChannel, EventPipeline> chanMgr;
+    private final ChannelManager<String, VmChannel, ?> chanMgr;
 
     /**
      * Creates a new instance.

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/DisplaySecretMonitor.java

@@ -42,6 +42,7 @@ import org.jgrapes.core.Channel;
  * of the pod running the VM in response to force an update of the files 
  * in the pod that reflect the information from the secret.
  */
+@SuppressWarnings({ "PMD.DataflowAnomalyAnalysis", "PMD.TooManyStaticImports" })
 public class DisplaySecretMonitor
         extends AbstractMonitor<V1Secret, V1SecretList, VmChannel> {
 

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/DisplaySecretReconciler.java

@@ -66,6 +66,7 @@ import org.jose4j.base64url.Base64;
  *   * `passwordValidity`: the validity of the random password in seconds.
  *     Used to calculate the password expiry time in the generated secret.
  */
+@SuppressWarnings({ "PMD.DataflowAnomalyAnalysis", "PMD.TooManyStaticImports" })
 public class DisplaySecretReconciler extends Component {
 
     protected final Logger logger = Logger.getLogger(getClass().getName());
@@ -103,15 +104,12 @@ public class DisplaySecretReconciler extends Component {
                 return oldConfig;
             }).ifPresent(c -> {
                 try {
-                    Optional.ofNullable(c.get("passwordValidity"))
+                    if (c.containsKey("passwordValidity")) {
-                        .map(p -> p instanceof Integer ? (Integer) p
+                        passwordValidity = Integer
-                            : Integer.valueOf((String) p))
+                            .parseInt((String) c.get("passwordValidity"));
-                        .ifPresent(p -> {
+                    }
-                            passwordValidity = p;
+                } catch (ClassCastException e) {
-                        });
+                    logger.config("Malformed configuration: " + e.getMessage());
-                } catch (NumberFormatException e) {
-                    logger.warning(
-                        () -> "Malformed configuration: " + e.getMessage());
                 }
             });
     }
@@ -192,6 +190,7 @@ public class DisplaySecretReconciler extends Component {
      * @throws ApiException the api exception
      */
     @Handler
+    @SuppressWarnings("PMD.StringInstantiation")
     public void onGetDisplaySecret(GetDisplaySecret event, VmChannel channel)
             throws ApiException {
         // Get VM definition and check if running
@@ -320,6 +319,7 @@ public class DisplaySecretReconciler extends Component {
     /**
      * The Class PendingGet.
      */
+    @SuppressWarnings("PMD.DataClass")
     private static class PendingRequest {
         public final GetDisplaySecret event;
         public final long expectedSerial;

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/LoadBalancerReconciler.java

@@ -22,6 +22,7 @@ import com.google.gson.Gson;
 import freemarker.template.Configuration;
 import freemarker.template.TemplateException;
 import io.kubernetes.client.openapi.ApiException;
+import io.kubernetes.client.openapi.JSON;
 import io.kubernetes.client.openapi.models.V1APIService;
 import io.kubernetes.client.openapi.models.V1ObjectMeta;
 import io.kubernetes.client.util.generic.dynamic.DynamicKubernetesObject;
@@ -45,6 +46,7 @@ import org.yaml.snakeyaml.constructor.SafeConstructor;
 /**
  * Delegee for reconciling the service
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 /* default */ class LoadBalancerReconciler {
 
     private static final String LOAD_BALANCER_SERVICE = "loadBalancerService";
@@ -85,7 +87,7 @@ import org.yaml.snakeyaml.constructor.SafeConstructor;
         }
 
         // Check if to be generated
-        @SuppressWarnings({ "unchecked" })
+        @SuppressWarnings({ "PMD.AvoidDuplicateLiterals", "unchecked" })
         var lbsDef = Optional.of(model)
             .map(m -> (Map<String, Object>) m.get("reconciler"))
             .map(c -> c.get(LOAD_BALANCER_SERVICE)).orElse(Boolean.FALSE);
@@ -121,7 +123,7 @@ import org.yaml.snakeyaml.constructor.SafeConstructor;
             ? (Map<String, Map<String, String>>) lbsDef
             : null;
         var client = channel.client();
-        mergeMetadata(client.getJSON().getGson(), svcDef, defaults, vmDef);
+        mergeMetadata(JSON.getGson(), svcDef, defaults, vmDef);
 
         // Apply
         var svcStub = K8sV1ServiceStub

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/Manager.java

@@ -81,7 +81,7 @@ import org.jgrapes.webconsole.vuejs.VueJsConsoleWeblet;
 /**
  * The application class.
  */
-@SuppressWarnings({ "PMD.ExcessiveImports" })
+@SuppressWarnings({ "PMD.DataflowAnomalyAnalysis", "PMD.ExcessiveImports" })
 public class Manager extends Component {
 
     private static String version;
@@ -97,8 +97,8 @@ public class Manager extends Component {
      * @throws IOException Signals that an I/O exception has occurred.
      * @throws URISyntaxException 
      */
-    @SuppressWarnings({ "PMD.NcssCount",
+    @SuppressWarnings({ "PMD.TooFewBranchesForASwitchStatement",
-        "PMD.ConstructorCallsOverridableMethod" })
+        "PMD.NcssCount", "PMD.ConstructorCallsOverridableMethod" })
     public Manager(CommandLine cmdLine) throws IOException, URISyntaxException {
         super(new NamedChannel("manager"));
         // Prepare component tree
@@ -217,6 +217,7 @@ public class Manager extends Component {
      * @param event the event
      */
     @Handler
+    @SuppressWarnings("PMD.DataflowAnomalyAnalysis")
     public void onConfigurationUpdate(ConfigurationUpdate event) {
         event.structured(componentPath()).ifPresent(c -> {
             if (c.containsKey("clusterName")) {
@@ -290,6 +291,7 @@ public class Manager extends Component {
      * @param args the arguments
      * @throws Exception the exception
      */
+    @SuppressWarnings("PMD.SignatureDeclareThrowsException")
     public static void main(String[] args) {
         try {
             // Instance logger is not available yet.

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/PodReconciler.java

@@ -43,6 +43,7 @@ import org.yaml.snakeyaml.constructor.SafeConstructor;
 /**
  * Delegee for reconciling the pod.
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 /* default */ class PodReconciler {
 
     protected final Logger logger = Logger.getLogger(getClass().getName());

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/PoolMonitor.java

@@ -21,6 +21,7 @@ package org.jdrupes.vmoperator.manager;
 import com.google.gson.JsonObject;
 import io.kubernetes.client.apimachinery.GroupVersionKind;
 import io.kubernetes.client.openapi.ApiException;
+import io.kubernetes.client.openapi.JSON;
 import io.kubernetes.client.util.Watch;
 import java.io.IOException;
 import java.util.Collections;
@@ -53,6 +54,7 @@ import org.jgrapes.core.events.Attached;
  * {@link VmPoolChanged} events fired on a special pipeline to
  * avoid concurrent change informations.
  */
+@SuppressWarnings({ "PMD.DataflowAnomalyAnalysis", "PMD.ExcessiveImports" })
 public class PoolMonitor extends
         AbstractMonitor<K8sDynamicModel, K8sDynamicModels, Channel> {
 
@@ -129,7 +131,7 @@ public class PoolMonitor extends
 
         // Get pool and merge changes
         var vmPool = pools.computeIfAbsent(poolName, k -> new VmPool(poolName));
-        vmPool.defineFrom(client().getJSON().getGson().fromJson(
+        vmPool.defineFrom(JSON.getGson().fromJson(
             GsonPtr.to(poolModel.data()).to("spec").get(), VmPool.class));
         poolPipeline.fire(new VmPoolChanged(vmPool));
     }

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/PvcReconciler.java

@@ -25,6 +25,7 @@ import freemarker.template.TemplateException;
 import freemarker.template.TemplateNotFoundException;
 import io.kubernetes.client.custom.V1Patch;
 import io.kubernetes.client.openapi.ApiException;
+import io.kubernetes.client.openapi.JSON;
 import io.kubernetes.client.util.generic.dynamic.Dynamics;
 import io.kubernetes.client.util.generic.options.ListOptions;
 import io.kubernetes.client.util.generic.options.PatchOptions;
@@ -49,6 +50,7 @@ import org.yaml.snakeyaml.constructor.SafeConstructor;
 /**
  * Delegee for reconciling the stateful set (effectively the pod).
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 /* default */ class PvcReconciler {
 
     protected final Logger logger = Logger.getLogger(getClass().getName());
@@ -74,7 +76,7 @@ import org.yaml.snakeyaml.constructor.SafeConstructor;
      * @throws TemplateException the template exception
      * @throws ApiException the api exception
      */
-    @SuppressWarnings({ "unchecked" })
+    @SuppressWarnings({ "PMD.AvoidDuplicateLiterals", "unchecked" })
     public void reconcile(VmDefinition vmDef, Map<String, Object> model,
             VmChannel channel, boolean specChanged)
             throws IOException, TemplateException, ApiException {
@@ -159,8 +161,7 @@ import org.yaml.snakeyaml.constructor.SafeConstructor;
         opts.setForce(true);
         opts.setFieldManager("kubernetes-java-kubectl-apply");
         if (pvcStub.patch(V1Patch.PATCH_FORMAT_APPLY_YAML,
-            new V1Patch(channel.client().getJSON().serialize(pvcDef)), opts)
+            new V1Patch(JSON.serialize(pvcDef)), opts).isEmpty()) {
-            .isEmpty()) {
             logger.warning(
                 () -> "Could not patch pvc for " + pvcStub.name());
         }
@@ -202,8 +203,7 @@ import org.yaml.snakeyaml.constructor.SafeConstructor;
             opts.setForce(true);
             opts.setFieldManager("kubernetes-java-kubectl-apply");
             if (pvcStub.patch(V1Patch.PATCH_FORMAT_APPLY_YAML,
-                new V1Patch(channel.client().getJSON().serialize(pvcDef)), opts)
+                new V1Patch(JSON.serialize(pvcDef)), opts).isEmpty()) {
-                .isEmpty()) {
                 logger.warning(
                     () -> "Could not patch pvc for " + pvcStub.name());
             }
@@ -217,8 +217,7 @@ import org.yaml.snakeyaml.constructor.SafeConstructor;
         PatchOptions opts = new PatchOptions();
         opts.setFieldManager("kubernetes-java-kubectl-apply");
         if (pvcStub.patch(V1Patch.PATCH_FORMAT_JSON_MERGE_PATCH,
-            new V1Patch(channel.client().getJSON().serialize(pvcDef)), opts)
+            new V1Patch(JSON.serialize(pvcDef)), opts).isEmpty()) {
-            .isEmpty()) {
             logger.warning(
                 () -> "Could not patch pvc for " + pvcStub.name());
         }

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/Reconciler.java

@@ -137,13 +137,15 @@ import org.jgrapes.util.events.ConfigurationUpdate;
  *   
  * @see org.jdrupes.vmoperator.manager.DisplaySecretReconciler
  */
-@SuppressWarnings({ "PMD.AvoidDuplicateLiterals" })
+@SuppressWarnings({ "PMD.DataflowAnomalyAnalysis",
+    "PMD.AvoidDuplicateLiterals" })
 public class Reconciler extends Component {
 
     /** The Constant mapper. */
     @SuppressWarnings("PMD.FieldNamingConventions")
     protected static final ObjectMapper mapper = new ObjectMapper();
 
+    @SuppressWarnings("PMD.SingularField")
     private final Configuration fmConfig;
     private final ConfigMapReconciler cmReconciler;
     private final DisplaySecretReconciler dsReconciler;
@@ -201,6 +203,7 @@ public class Reconciler extends Component {
      * @throws IOException Signals that an I/O exception has occurred.
      */
     @Handler
+    @SuppressWarnings("PMD.ConfusingTernary")
     public void onVmResourceChanged(VmResourceChanged event, VmChannel channel)
             throws ApiException, TemplateException, IOException {
         // Ownership relationships takes care of deletions
@@ -335,6 +338,7 @@ public class Reconciler extends Component {
     private final TemplateMethodModelEx formatMemoryModel
         = new TemplateMethodModelEx() {
             @Override
+            @SuppressWarnings("PMD.PreserveStackTrace")
             public Object exec(@SuppressWarnings("rawtypes") List arguments)
                     throws TemplateModelException {
                 var arg = arguments.get(0);
@@ -364,7 +368,8 @@ public class Reconciler extends Component {
     private final TemplateMethodModelEx imgageLocationModel
         = new TemplateMethodModelEx() {
             @Override
-            @SuppressWarnings({ "PMD.AvoidLiteralsInIfCondition" })
+            @SuppressWarnings({ "PMD.PreserveStackTrace",
+                "PMD.AvoidLiteralsInIfCondition" })
             public Object exec(@SuppressWarnings("rawtypes") List arguments)
                     throws TemplateModelException {
                 var image = ((SimpleScalar) arguments.get(0)).getAsString();
@@ -389,6 +394,7 @@ public class Reconciler extends Component {
     private final TemplateMethodModelEx toJsonModel
         = new TemplateMethodModelEx() {
             @Override
+            @SuppressWarnings("PMD.PreserveStackTrace")
             public Object exec(@SuppressWarnings("rawtypes") List arguments)
                     throws TemplateModelException {
                 try {

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/VmMonitor.java

@@ -22,6 +22,7 @@ import com.google.gson.JsonObject;
 import io.kubernetes.client.apimachinery.GroupVersionKind;
 import io.kubernetes.client.custom.V1Patch;
 import io.kubernetes.client.openapi.ApiException;
+import io.kubernetes.client.openapi.models.V1ObjectMeta;
 import io.kubernetes.client.util.Watch;
 import io.kubernetes.client.util.generic.options.ListOptions;
 import java.io.IOException;
@@ -31,6 +32,7 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Optional;
 import java.util.Set;
+import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.stream.Collectors;
 import org.jdrupes.vmoperator.common.Constants.Crd;
 import org.jdrupes.vmoperator.common.Constants.Status;
@@ -55,27 +57,16 @@ import org.jdrupes.vmoperator.manager.events.VmResourceChanged;
 import org.jdrupes.vmoperator.util.GsonPtr;
 import org.jgrapes.core.Channel;
 import org.jgrapes.core.Event;
-import org.jgrapes.core.EventPipeline;
 import org.jgrapes.core.annotation.Handler;
 
 /**
- * Watches for changes of VM definitions. When a VM definition (CR)
+ * Watches for changes of VM definitions.
- * becomes known, is is registered with a {@link ChannelManager} and thus
- * gets an associated {@link VmChannel} and an associated
- * {@link EventPipeline}.
- * 
- * The {@link EventPipeline} is used for submitting an action that processes
- * the change data from kubernetes, eventually transforming it to a
- * {@link VmResourceChanged} event that is handled by another
- * {@link EventPipeline} associated with the {@link VmChannel}. This
- * event pipeline should be used for all events related to changes of
- * a particular VM.
  */
+@SuppressWarnings({ "PMD.DataflowAnomalyAnalysis", "PMD.ExcessiveImports" })
 public class VmMonitor extends
         AbstractMonitor<VmDefinition, VmDefinitions, VmChannel> {
 
-    private final ChannelManager<String, VmChannel,
+    private final ChannelManager<String, VmChannel, ?> channelManager;
-            EventPipeline> channelManager;
 
     /**
      * Instantiates a new VM definition watcher.
@@ -84,7 +75,7 @@ public class VmMonitor extends
      * @param channelManager the channel manager
      */
     public VmMonitor(Channel componentChannel,
-            ChannelManager<String, VmChannel, EventPipeline> channelManager) {
+            ChannelManager<String, VmChannel, ?> channelManager) {
         super(componentChannel, VmDefinition.class,
             VmDefinitions.class);
         this.channelManager = channelManager;
@@ -106,6 +97,7 @@ public class VmMonitor extends
         purge();
     }
 
+    @SuppressWarnings("PMD.CognitiveComplexity")
     private void purge() throws ApiException {
         // Get existing CRs (VMs)
         var known = K8sDynamicStub.list(client(), context(), namespace())
@@ -130,18 +122,14 @@ public class VmMonitor extends
     @Override
     protected void handleChange(K8sClient client,
             Watch.Response<VmDefinition> response) {
-        var name = response.object.getMetadata().getName();
+        V1ObjectMeta metadata = response.object.getMetadata();
+        AtomicBoolean toBeAdded = new AtomicBoolean(false);
+        VmChannel channel = channelManager.channel(metadata.getName())
+            .orElseGet(() -> {
+                toBeAdded.set(true);
+                return channelManager.createChannel(metadata.getName());
+            });
 
-        // Process the response data on a VM specific pipeline to
-        // increase concurrency when e.g. starting many VMs.
-        var preparing = channelManager.associated(name)
-            .orElseGet(() -> newEventPipeline());
-        preparing.submit("VmChange[" + name + "]",
-            () -> processChange(client, response, preparing));
-    }
-
-    private void processChange(K8sClient client,
-            Watch.Response<VmDefinition> response, EventPipeline preparing) {
         // Get full definition and associate with channel as backup
         var vmDef = response.object;
         if (vmDef.data() == null) {
@@ -149,9 +137,6 @@ public class VmMonitor extends
             // https://github.com/kubernetes-client/java/issues/3215
             vmDef = getModel(client, vmDef);
         }
-        var name = response.object.getMetadata().getName();
-        var channel = channelManager.channel(name)
-            .orElseGet(() -> channelManager.createChannel(name));
         if (vmDef.data() != null) {
             // New data, augment and save
             addExtraData(vmDef, channel.vmDefinition());
@@ -165,7 +150,9 @@ public class VmMonitor extends
                 + response.object.getMetadata());
             return;
         }
-        channelManager.put(name, channel, preparing);
+        if (toBeAdded.get()) {
+            channelManager.put(vmDef.name(), channel);
+        }
 
         // Create and fire changed event. Remove channel from channel
         // manager on completion.
@@ -190,6 +177,7 @@ public class VmMonitor extends
         }
     }
 
+    @SuppressWarnings("PMD.AvoidDuplicateLiterals")
     private void addExtraData(VmDefinition vmDef, VmDefinition prevState) {
         var extra = new VmExtraData(vmDef);
         var prevExtra = Optional.ofNullable(prevState).map(VmDefinition::extra);
@@ -211,16 +199,9 @@ public class VmMonitor extends
     @Handler
     public void onPodChanged(PodChanged event, VmChannel channel) {
         var vmDef = channel.vmDefinition();
-
+        updateNodeInfo(event, vmDef);
-        // Make sure that this is properly sync'd with VM CR changes.
+        channel
-        channelManager.associated(vmDef.name())
+            .fire(new VmResourceChanged(ResponseType.MODIFIED, vmDef, false, true));
-            .orElseGet(() -> activeEventPipeline())
-            .submit("NodeInfo[" + vmDef.name() + "]",
-                () -> {
-                    updateNodeInfo(event, vmDef);
-                    channel.fire(new VmResourceChanged(ResponseType.MODIFIED,
-                        vmDef, false, true));
-                });
     }
 
     private void updateNodeInfo(PodChanged event, VmDefinition vmDef) {
@@ -238,6 +219,7 @@ public class VmMonitor extends
             .ofNullable(pod.getSpec().getNodeName()).orElse("");
         logger.finer(() -> "Adding node name " + nodeName
             + " to VM info for " + vmDef.name());
+        @SuppressWarnings("PMD.AvoidInstantiatingObjectsInLoops")
         var addrs = new ArrayList<String>();
         Optional.ofNullable(pod.getStatus().getPodIPs())
             .orElse(Collections.emptyList()).stream()

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/CdMediaController.java

@@ -36,6 +36,7 @@ import org.jgrapes.core.annotation.Handler;
 /**
  * The Class CdMediaController.
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class CdMediaController extends Component {
 
     /**
@@ -54,6 +55,7 @@ public class CdMediaController extends Component {
      *
      * @param componentChannel the component channel
      */
+    @SuppressWarnings("PMD.AssignmentToNonFinalStatic")
     public CdMediaController(Channel componentChannel) {
         super(componentChannel);
     }
@@ -64,7 +66,8 @@ public class CdMediaController extends Component {
      * @param event the event
      */
     @Handler
-    @SuppressWarnings({ "PMD.AvoidInstantiatingObjectsInLoops" })
+    @SuppressWarnings({ "PMD.AvoidLiteralsInIfCondition",
+        "PMD.AvoidInstantiatingObjectsInLoops" })
     public void onConfigureQemu(ConfigureQemu event) {
         if (event.runState() == RunState.TERMINATING) {
             return;

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/Configuration.java

@@ -39,9 +39,11 @@ import org.jdrupes.vmoperator.util.FsdUtils;
 /**
  * The configuration information from the configuration file.
  */
+@SuppressWarnings({ "PMD.ExcessivePublicCount", "PMD.TooManyFields" })
 public class Configuration implements Dto {
     private static final String CI_INSTANCE_ID = "instance-id";
 
+    @SuppressWarnings("PMD.FieldNamingConventions")
     protected final Logger logger = Logger.getLogger(getClass().getName());
 
     /** Configuration timestamp. */
@@ -93,12 +95,15 @@ public class Configuration implements Dto {
     public static class CloudInit implements Dto {
 
         /** The meta data. */
+        @SuppressWarnings("PMD.UseConcurrentHashMap")
         public Map<String, Object> metaData;
 
         /** The user data. */
+        @SuppressWarnings("PMD.UseConcurrentHashMap")
         public Map<String, Object> userData;
 
         /** The network config. */
+        @SuppressWarnings("PMD.UseConcurrentHashMap")
         public Map<String, Object> networkConfig;
     }
 
@@ -294,6 +299,7 @@ public class Configuration implements Dto {
         return true;
     }
 
+    @SuppressWarnings("PMD.AvoidLiteralsInIfCondition")
     private void checkDrives() {
         for (Drive drive : vm.drives) {
             if (drive.file != null || drive.device != null
@@ -313,6 +319,7 @@ public class Configuration implements Dto {
         }
     }
 
+    @SuppressWarnings("PMD.AvoidDeeplyNestedIfStmts")
     private boolean checkRuntimeDir() {
         // Runtime directory (sockets etc.)
         if (runtimeDir == null) {
@@ -348,6 +355,7 @@ public class Configuration implements Dto {
         return true;
     }
 
+    @SuppressWarnings("PMD.AvoidDeeplyNestedIfStmts")
     private boolean checkDataDir() {
         // Data directory
         if (dataDir == null) {

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/ConsoleTracker.java

@@ -41,6 +41,7 @@ import org.jgrapes.core.events.Start;
  * A (sub)component that updates the console status in the CR status.
  * Created as child of {@link StatusUpdater}.
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class ConsoleTracker extends VmDefUpdater {
 
     private VmDefinitionStub vmStub;
@@ -52,6 +53,7 @@ public class ConsoleTracker extends VmDefUpdater {
      *
      * @param componentChannel the component channel
      */
+    @SuppressWarnings("PMD.ConstructorCallsOverridableMethod")
     public ConsoleTracker(Channel componentChannel) {
         super(componentChannel);
         apiClient = (K8sClient) io.kubernetes.client.openapi.Configuration
@@ -89,7 +91,8 @@ public class ConsoleTracker extends VmDefUpdater {
      * @throws ApiException the api exception
      */
     @Handler
-    @SuppressWarnings({ "PMD.AvoidLiteralsInIfCondition" })
+    @SuppressWarnings({ "PMD.AvoidLiteralsInIfCondition",
+        "PMD.AvoidDuplicateLiterals" })
     public void onSpiceInitialized(SpiceInitializedEvent event)
             throws ApiException {
         if (vmStub == null) {
@@ -124,6 +127,7 @@ public class ConsoleTracker extends VmDefUpdater {
      * @throws ApiException the api exception
      */
     @Handler
+    @SuppressWarnings("PMD.AvoidDuplicateLiterals")
     public void onSpiceDisconnected(SpiceDisconnectedEvent event)
             throws ApiException {
         if (vmStub == null) {

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/Constants.java

@@ -21,6 +21,7 @@ package org.jdrupes.vmoperator.runner.qemu;
 /**
  * Some constants.
  */
+@SuppressWarnings("PMD.DataClass")
 public class Constants extends org.jdrupes.vmoperator.common.Constants {
 
     /**

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/CpuController.java

@@ -41,6 +41,7 @@ import org.jgrapes.core.annotation.Handler;
 /**
  * The Class CpuController.
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class CpuController extends Component {
 
     private Integer currentCpus;

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/DisplayController.java

@@ -43,6 +43,7 @@ import org.jgrapes.util.events.WatchFile;
 /**
  * The Class DisplayController.
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class DisplayController extends Component {
 
     private String currentPassword;
@@ -58,7 +59,8 @@ public class DisplayController extends Component {
      * @param componentChannel the component channel
      * @param configDir 
      */
-    @SuppressWarnings({ "PMD.ConstructorCallsOverridableMethod" })
+    @SuppressWarnings({ "PMD.AssignmentToNonFinalStatic",
+        "PMD.ConstructorCallsOverridableMethod" })
     public DisplayController(Channel componentChannel, Path configDir) {
         super(componentChannel);
         this.configDir = configDir;
@@ -112,6 +114,7 @@ public class DisplayController extends Component {
      * @param event the event
      */
     @Handler
+    @SuppressWarnings("PMD.EmptyCatchBlock")
     public void onFileChanged(FileChanged event) {
         if (event.path().equals(configDir.resolve(DisplaySecret.PASSWORD))) {
             logger.fine(() -> "Display password updated");

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/GuestAgentClient.java

@@ -69,14 +69,14 @@ public class GuestAgentClient extends AgentConnector {
      */
     @Override
     protected void agentConnected() {
-        logger.fine(() -> "Guest agent connected");
+        logger.fine(() -> "guest agent connected");
         connected = true;
         rep().fire(new GuestAgentCommand(new QmpGuestGetOsinfo()));
     }
 
     @Override
     protected void agentDisconnected() {
-        logger.fine(() -> "Guest agent disconnected");
+        logger.fine(() -> "guest agent disconnected");
         connected = false;
     }
 
@@ -88,16 +88,15 @@ public class GuestAgentClient extends AgentConnector {
      */
     @Override
     protected void processInput(String line) throws IOException {
-        logger.finer(() -> "guest agent(in): " + line);
+        logger.fine(() -> "guest agent(in): " + line);
         try {
             var response = mapper.readValue(line, ObjectNode.class);
             if (response.has("return") || response.has("error")) {
                 QmpCommand executed = executing.poll();
-                logger.finer(() -> String.format("(Previous \"guest agent(in)\""
+                logger.fine(() -> String.format("(Previous \"guest agent(in)\""
                     + " is result from executing %s)", executed));
                 if (executed instanceof QmpGuestGetOsinfo) {
                     var osInfo = new OsinfoEvent(response.get("return"));
-                    logger.fine(() -> "Guest agent triggers: " + osInfo);
                     rep().fire(osInfo);
                 }
             }
@@ -121,11 +120,10 @@ public class GuestAgentClient extends AgentConnector {
             return;
         }
         var command = event.command();
-        logger.fine(() -> "Guest handles: " + event);
+        logger.fine(() -> "guest agent(out): " + command.toString());
         String asText;
         try {
             asText = command.asText();
-            logger.finer(() -> "guest agent(out): " + asText);
         } catch (JsonProcessingException e) {
             logger.log(Level.SEVERE, e,
                 () -> "Cannot serialize Json: " + e.getMessage());
@@ -165,8 +163,8 @@ public class GuestAgentClient extends AgentConnector {
         }
         event.suspendHandling();
         suspendedStop = event;
-        logger.fine(() -> "Attempting shutdown through guest agent,"
+        logger.fine(() -> "Sending powerdown command, waiting for"
-            + " waiting for termination until " + waitUntil);
+            + " termination until " + waitUntil);
         powerdownTimer = Components.schedule(t -> {
             logger.fine(() -> "Powerdown timeout reached.");
             synchronized (this) {

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/QemuMonitor.java

@@ -54,6 +54,7 @@ import org.jgrapes.util.events.ConfigurationUpdate;
  * If the log level for this class is set to fine, the messages 
  * exchanged on the monitor socket are logged.
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class QemuMonitor extends QemuConnector {
 
     private int powerdownTimeout;
@@ -71,6 +72,8 @@ public class QemuMonitor extends QemuConnector {
      * @param configDir the config dir
      * @throws IOException Signals that an I/O exception has occurred.
      */
+    @SuppressWarnings({ "PMD.AssignmentToNonFinalStatic",
+        "PMD.ConstructorCallsOverridableMethod" })
     public QemuMonitor(Channel componentChannel, Path configDir)
             throws IOException {
         super(componentChannel);
@@ -105,30 +108,24 @@ public class QemuMonitor extends QemuConnector {
     @Override
     protected void processInput(String line)
             throws IOException {
-        logger.finer(() -> "monitor(in): " + line);
+        logger.fine(() -> "monitor(in): " + line);
         try {
             var response = mapper.readValue(line, ObjectNode.class);
             if (response.has("QMP")) {
                 monitorReady = true;
-                logger.fine(() -> "QMP connection ready");
                 rep().fire(new MonitorReady());
                 return;
             }
             if (response.has("return") || response.has("error")) {
                 QmpCommand executed = executing.poll();
-                logger.finer(
+                logger.fine(
                     () -> String.format("(Previous \"monitor(in)\" is result "
                         + "from executing %s)", executed));
-                var monRes = MonitorResult.from(executed, response);
+                rep().fire(MonitorResult.from(executed, response));
-                logger.fine(() -> "QMP triggers: " + monRes);
-                rep().fire(monRes);
                 return;
             }
             if (response.has("event")) {
-                MonitorEvent.from(response).ifPresent(me -> {
+                MonitorEvent.from(response).ifPresent(rep()::fire);
-                    logger.fine(() -> "QMP triggers: " + me);
-                    rep().fire(me);
-                });
             }
         } catch (JsonProcessingException e) {
             throw new IOException(e);
@@ -144,7 +141,7 @@ public class QemuMonitor extends QemuConnector {
     public void onClosed(Closed<?> event, SocketIOChannel channel) {
         channel.associated(this, getClass()).ifPresent(qm -> {
             super.onClosed(event, channel);
-            logger.fine(() -> "QMP connection closed.");
+            logger.finer(() -> "QMP socket closed.");
             monitorReady = false;
         });
     }
@@ -161,7 +158,7 @@ public class QemuMonitor extends QemuConnector {
     public void onMonitorCommand(MonitorCommand event) throws IOException {
         // Check prerequisites
         if (!monitorReady && !(event.command() instanceof QmpCapabilities)) {
-            logger.severe(() -> "Premature QMP command (not ready): "
+            logger.severe(() -> "Premature monitor command (not ready): "
                 + event.command());
             rep().fire(new Stop());
             return;
@@ -169,11 +166,10 @@ public class QemuMonitor extends QemuConnector {
 
         // Send the command
         var command = event.command();
-        logger.fine(() -> "QMP handles: " + event.toString());
+        logger.fine(() -> "monitor(out): " + command.toString());
         String asText;
         try {
             asText = command.asText();
-            logger.finer(() -> "monitor(out): " + asText);
         } catch (JsonProcessingException e) {
             logger.log(Level.SEVERE, e,
                 () -> "Cannot serialize Json: " + e.getMessage());
@@ -196,8 +192,8 @@ public class QemuMonitor extends QemuConnector {
     @SuppressWarnings("PMD.AvoidSynchronizedStatement")
     public void onStop(Stop event) {
         if (!monitorReady) {
-            logger.fine(() -> "Not sending QMP powerdown command"
+            logger.fine(() -> "No QMP connection,"
-                + " because QMP connection is closed");
+                + " cannot send powerdown command");
             return;
         }
 

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/RamController.java

@@ -39,6 +39,7 @@ public class RamController extends Component {
      *
      * @param componentChannel the component channel
      */
+    @SuppressWarnings("PMD.AssignmentToNonFinalStatic")
     public RamController(Channel componentChannel) {
         super(componentChannel);
     }

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/Runner.java

@@ -201,7 +201,8 @@ import org.jgrapes.util.events.WatchFile;
  * 
  */
 @SuppressWarnings({ "PMD.ExcessiveImports", "PMD.AvoidPrintStackTrace",
-    "PMD.TooManyMethods", "PMD.CouplingBetweenObjects" })
+    "PMD.DataflowAnomalyAnalysis", "PMD.TooManyMethods",
+    "PMD.CouplingBetweenObjects", "PMD.TooManyFields" })
 public class Runner extends Component {
 
     private static final String TEMPLATE_DIR
@@ -217,6 +218,7 @@ public class Runner extends Component {
         .builder().disable(YAMLGenerator.Feature.WRITE_DOC_START_MARKER)
         .build());
     private final JsonNode defaults;
+    @SuppressWarnings("PMD.UseConcurrentHashMap")
     private final File configFile;
     private final Path configDir;
     private Configuration initialConfig;
@@ -248,7 +250,8 @@ public class Runner extends Component {
      * @param cmdLine the cmd line
      * @throws IOException Signals that an I/O exception has occurred.
      */
-    @SuppressWarnings({ "PMD.ConstructorCallsOverridableMethod" })
+    @SuppressWarnings({ "PMD.SystemPrintln",
+        "PMD.ConstructorCallsOverridableMethod" })
     public Runner(CommandLine cmdLine) throws IOException {
         yamlMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES,
             false);
@@ -384,6 +387,8 @@ public class Runner extends Component {
         }
     }
 
+    @SuppressWarnings({ "PMD.CognitiveComplexity",
+        "PMD.DataflowAnomalyAnalysis" })
     private void setFirmwarePaths(Configuration config) throws IOException {
         JsonNode firmware = defaults.path("firmware").path(config.vm.firmware);
         // Get file for firmware ROM
@@ -615,6 +620,8 @@ public class Runner extends Component {
      * @throws InterruptedException the interrupted exception
      */
     @Handler
+    @SuppressWarnings({ "PMD.SwitchStmtsShouldHaveDefault",
+        "PMD.TooFewBranchesForASwitchStatement" })
     public void onProcessStarted(ProcessStarted event, ProcessChannel channel)
             throws InterruptedException {
         event.startEvent().associated(CommandDefinition.class)
@@ -771,6 +778,7 @@ public class Runner extends Component {
             "The VM has been shut down"));
     }
 
+    @SuppressWarnings("PMD.ConfusingArgumentToVarargsMethod")
     private void shutdown() {
         if (!Set.of(RunState.TERMINATING, RunState.STOPPED).contains(state)) {
             fire(new Stop());

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/StatusUpdater.java

@@ -66,11 +66,12 @@ import org.jgrapes.core.events.Start;
 /**
  * Updates the CR status.
  */
-@SuppressWarnings({ "PMD.CouplingBetweenObjects" })
+@SuppressWarnings({ "PMD.DataflowAnomalyAnalysis",
+    "PMD.CouplingBetweenObjects" })
 public class StatusUpdater extends VmDefUpdater {
 
     @SuppressWarnings("PMD.FieldNamingConventions")
-    private static final Gson gson = new JSON().getGson();
+    private static final Gson gson = JSON.getGson();
     @SuppressWarnings("PMD.FieldNamingConventions")
     private static final ObjectMapper objectMapper
         = new ObjectMapper().registerModule(new JavaTimeModule());
@@ -89,6 +90,7 @@ public class StatusUpdater extends VmDefUpdater {
      *
      * @param componentChannel the component channel
      */
+    @SuppressWarnings("PMD.ConstructorCallsOverridableMethod")
     public StatusUpdater(Channel componentChannel) {
         super(componentChannel);
         attach(new ConsoleTracker(componentChannel));
@@ -151,6 +153,7 @@ public class StatusUpdater extends VmDefUpdater {
      * @throws ApiException 
      */
     @Handler
+    @SuppressWarnings("PMD.AvoidDuplicateLiterals")
     public void onConfigureQemu(ConfigureQemu event)
             throws ApiException {
         guestShutdownStops = event.configuration().guestShutdownStops;
@@ -184,7 +187,8 @@ public class StatusUpdater extends VmDefUpdater {
      * @throws ApiException 
      */
     @Handler
-    @SuppressWarnings({ "PMD.AssignmentInOperand" })
+    @SuppressWarnings({ "PMD.AvoidLiteralsInIfCondition",
+        "PMD.AssignmentInOperand", "PMD.AvoidDuplicateLiterals" })
     public void onRunnerStateChanged(RunnerStateChange event)
             throws ApiException {
         VmDefinition vmDef;
@@ -421,6 +425,7 @@ public class StatusUpdater extends VmDefUpdater {
      * @throws ApiException 
      */
     @Handler
+    @SuppressWarnings("PMD.AssignmentInOperand")
     public void onVmopAgentLoggedIn(VmopAgentLoggedIn event)
             throws ApiException {
         vmStub.updateStatus(from -> {
@@ -437,6 +442,7 @@ public class StatusUpdater extends VmDefUpdater {
      * @throws ApiException 
      */
     @Handler
+    @SuppressWarnings("PMD.AssignmentInOperand")
     public void onVmopAgentLoggedOut(VmopAgentLoggedOut event)
             throws ApiException {
         vmStub.updateStatus(from -> {

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/VmDefUpdater.java

@@ -19,6 +19,7 @@
 package org.jdrupes.vmoperator.runner.qemu;
 
 import com.google.gson.JsonObject;
+import io.kubernetes.client.openapi.JSON;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -43,6 +44,7 @@ import org.jgrapes.util.events.InitialConfiguration;
 /**
  * Updates the CR status.
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class VmDefUpdater extends Component {
 
     protected String namespace;
@@ -160,8 +162,7 @@ public class VmDefUpdater extends Component {
                     : cond)
                 .collect(Collectors.toCollection(() -> new ArrayList<>()));
         newConds.addAll(toReplace);
-        status.add("conditions",
+        status.add("conditions", JSON.getGson().toJsonTree(newConds));
-            apiClient.getJSON().getGson().toJsonTree(newConds));
         return status;
     }
 }

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/VmopAgentClient.java

@@ -59,14 +59,10 @@ public class VmopAgentClient extends AgentConnector {
      */
     @Handler
     public void onVmopAgentLogIn(VmopAgentLogIn event) throws IOException {
+        logger.fine(() -> "vmop agent(out): login " + event.user());
         if (writer().isPresent()) {
-            logger.fine(() -> "Vmop agent handles:" + event);
             executing.add(event);
-            logger.finer(() -> "vmop agent(out): login " + event.user());
             sendCommand("login " + event.user());
-        } else {
-            logger
-                .warning(() -> "No vmop agent connection for sending " + event);
         }
     }
 
@@ -78,38 +74,34 @@ public class VmopAgentClient extends AgentConnector {
      */
     @Handler
     public void onVmopAgentLogout(VmopAgentLogOut event) throws IOException {
+        logger.fine(() -> "vmop agent(out): logout");
         if (writer().isPresent()) {
-            logger.fine(() -> "Vmop agent handles:" + event);
             executing.add(event);
-            logger.finer(() -> "vmop agent(out): logout");
             sendCommand("logout");
         }
     }
 
     @Override
-    @SuppressWarnings({ "PMD.AvoidLiteralsInIfCondition" })
+    @SuppressWarnings({ "PMD.UnnecessaryReturn",
+        "PMD.AvoidLiteralsInIfCondition" })
     protected void processInput(String line) throws IOException {
-        logger.finer(() -> "vmop agent(in): " + line);
+        logger.fine(() -> "vmop agent(in): " + line);
 
         // Check validity
         if (line.isEmpty() || !Character.isDigit(line.charAt(0))) {
-            logger.warning(() -> "Illegal vmop agent response: " + line);
+            logger.warning(() -> "Illegal response: " + line);
             return;
         }
 
         // Check positive responses
         if (line.startsWith("220 ")) {
-            var evt = new VmopAgentConnected();
+            rep().fire(new VmopAgentConnected());
-            logger.fine(() -> "Vmop agent triggers " + evt);
-            rep().fire(evt);
             return;
         }
         if (line.startsWith("201 ")) {
             Event<?> cmd = executing.pop();
             if (cmd instanceof VmopAgentLogIn login) {
-                var evt = new VmopAgentLoggedIn(login);
+                rep().fire(new VmopAgentLoggedIn(login));
-                logger.fine(() -> "Vmop agent triggers " + evt);
-                rep().fire(evt);
             } else {
                 logger.severe(() -> "Response " + line
                     + " does not match executing command " + cmd);
@@ -119,9 +111,7 @@ public class VmopAgentClient extends AgentConnector {
         if (line.startsWith("202 ")) {
             Event<?> cmd = executing.pop();
             if (cmd instanceof VmopAgentLogOut logout) {
-                var evt = new VmopAgentLoggedOut(logout);
+                rep().fire(new VmopAgentLoggedOut(logout));
-                logger.fine(() -> "Vmop agent triggers " + evt);
-                rep().fire(evt);
             } else {
                 logger.severe(() -> "Response " + line
                     + "does not match executing command " + cmd);
@@ -135,7 +125,7 @@ public class VmopAgentClient extends AgentConnector {
         }
 
         // Error
-        logger.warning(() -> "Error response from vmop agent: " + line);
+        logger.warning(() -> "Error response: " + line);
         executing.pop();
     }
 

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/commands/QmpCapabilities.java

@@ -25,7 +25,8 @@ import com.fasterxml.jackson.databind.JsonNode;
  */
 public class QmpCapabilities extends QmpCommand {
 
-    @SuppressWarnings({ "PMD.FieldNamingConventions" })
+    @SuppressWarnings({ "PMD.FieldNamingConventions",
+        "PMD.VariableNamingConventions" })
     private static final JsonNode jsonTemplate
         = parseJson("{ \"execute\": \"qmp_capabilities\" }");
 

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/commands/QmpChangeMedium.java

@@ -27,7 +27,8 @@ import com.fasterxml.jackson.databind.node.ObjectNode;
  */
 public class QmpChangeMedium extends QmpCommand {
 
-    @SuppressWarnings({ "PMD.FieldNamingConventions" })
+    @SuppressWarnings({ "PMD.FieldNamingConventions",
+        "PMD.VariableNamingConventions" })
     private static final JsonNode jsonTemplate
         = parseJson("{ \"execute\": \"blockdev-change-medium\",\"arguments\": {"
             + "\"id\": \"\",\"filename\": \"\",\"format\": \"raw\","

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/commands/QmpCommand.java

@@ -30,7 +30,8 @@ import java.util.logging.Logger;
  */
 public abstract class QmpCommand {
 
-    @SuppressWarnings({ "PMD.FieldNamingConventions" })
+    @SuppressWarnings({ "PMD.FieldNamingConventions",
+        "PMD.VariableNamingConventions" })
     protected static final ObjectMapper mapper = new ObjectMapper();
 
     /**

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/commands/QmpCont.java

@@ -25,7 +25,8 @@ import com.fasterxml.jackson.databind.JsonNode;
  */
 public class QmpCont extends QmpCommand {
 
-    @SuppressWarnings({ "PMD.FieldNamingConventions" })
+    @SuppressWarnings({ "PMD.FieldNamingConventions",
+        "PMD.VariableNamingConventions" })
     private static final JsonNode jsonTemplate
         = parseJson("{ \"execute\": \"cont\" }");
 

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/commands/QmpDelCpu.java

@@ -27,7 +27,8 @@ import com.fasterxml.jackson.databind.node.ObjectNode;
  */
 public class QmpDelCpu extends QmpCommand {
 
-    @SuppressWarnings({ "PMD.FieldNamingConventions" })
+    @SuppressWarnings({ "PMD.FieldNamingConventions",
+        "PMD.VariableNamingConventions" })
     private static final JsonNode jsonTemplate
         = parseJson("{ \"execute\": \"device_del\", "
             + "\"arguments\": " + "{ \"id\": 0 } }");

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/commands/QmpOpenTray.java

@@ -27,7 +27,8 @@ import com.fasterxml.jackson.databind.node.ObjectNode;
  */
 public class QmpOpenTray extends QmpCommand {
 
-    @SuppressWarnings({ "PMD.FieldNamingConventions" })
+    @SuppressWarnings({ "PMD.FieldNamingConventions",
+        "PMD.VariableNamingConventions" })
     private static final JsonNode jsonTemplate
         = parseJson("{ \"execute\": \"blockdev-open-tray\",\"arguments\": {"
             + "\"id\": \"\" } }");

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/commands/QmpPowerdown.java

@@ -25,7 +25,8 @@ import com.fasterxml.jackson.databind.JsonNode;
  */
 public class QmpPowerdown extends QmpCommand {
 
-    @SuppressWarnings({ "PMD.FieldNamingConventions" })
+    @SuppressWarnings({ "PMD.FieldNamingConventions",
+        "PMD.VariableNamingConventions" })
     private static final JsonNode jsonTemplate
         = parseJson("{ \"execute\": \"system_powerdown\" }");
 

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/commands/QmpQueryHotpluggableCpus.java

@@ -25,7 +25,8 @@ import com.fasterxml.jackson.databind.JsonNode;
  */
 public class QmpQueryHotpluggableCpus extends QmpCommand {
 
-    @SuppressWarnings({ "PMD.FieldNamingConventions" })
+    @SuppressWarnings({ "PMD.FieldNamingConventions",
+        "PMD.VariableNamingConventions" })
     private static final JsonNode jsonTemplate = parseJson(
         "{\"execute\":\"query-hotpluggable-cpus\",\"arguments\":{}}");
 

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/commands/QmpRemoveMedium.java

@@ -27,7 +27,8 @@ import com.fasterxml.jackson.databind.node.ObjectNode;
  */
 public class QmpRemoveMedium extends QmpCommand {
 
-    @SuppressWarnings({ "PMD.FieldNamingConventions" })
+    @SuppressWarnings({ "PMD.FieldNamingConventions",
+        "PMD.VariableNamingConventions" })
     private static final JsonNode jsonTemplate
         = parseJson("{ \"execute\": \"blockdev-remove-medium\",\"arguments\": {"
             + "\"id\": \"\" } }");

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/commands/QmpReset.java

@@ -25,7 +25,8 @@ import com.fasterxml.jackson.databind.JsonNode;
  */
 public class QmpReset extends QmpCommand {
 
-    @SuppressWarnings({ "PMD.FieldNamingConventions" })
+    @SuppressWarnings({ "PMD.FieldNamingConventions",
+        "PMD.VariableNamingConventions" })
     private static final JsonNode jsonTemplate
         = parseJson("{ \"execute\": \"system_reset\" }");
 

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/commands/QmpSetBalloon.java

@@ -28,7 +28,8 @@ import java.math.BigInteger;
  */
 public class QmpSetBalloon extends QmpCommand {
 
-    @SuppressWarnings({ "PMD.FieldNamingConventions" })
+    @SuppressWarnings({ "PMD.FieldNamingConventions",
+        "PMD.VariableNamingConventions" })
     private static final JsonNode jsonTemplate
         = parseJson("{ \"execute\": \"balloon\", "
             + "\"arguments\": " + "{ \"value\": 0 } }");

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/events/MonitorEvent.java

@@ -20,8 +20,6 @@ package org.jdrupes.vmoperator.runner.qemu.events;
 
 import com.fasterxml.jackson.databind.JsonNode;
 import java.util.Optional;
-import org.jgrapes.core.Channel;
-import org.jgrapes.core.Components;
 import org.jgrapes.core.Event;
 
 /**
@@ -49,6 +47,7 @@ public class MonitorEvent extends Event<Void> {
      * @param response the response
      * @return the optional
      */
+    @SuppressWarnings("PMD.TooFewBranchesForASwitchStatement")
     public static Optional<MonitorEvent> from(JsonNode response) {
         try {
             var kind = Kind.valueOf(response.get("event").asText());
@@ -113,20 +112,4 @@ public class MonitorEvent extends Event<Void> {
     public JsonNode data() {
         return data;
     }
-
-    /*
-     * (non-Javadoc)
-     * 
-     * @see java.lang.Object#toString()
-     */
-    @Override
-    public String toString() {
-        StringBuilder builder = new StringBuilder();
-        builder.append(Components.objectName(this)).append(" [").append(data);
-        if (channels() != null) {
-            builder.append(", channels=").append(Channel.toString(channels()));
-        }
-        builder.append(']');
-        return builder.toString();
-    }
 }

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/events/OsinfoEvent.java

@@ -19,8 +19,6 @@
 package org.jdrupes.vmoperator.runner.qemu.events;
 
 import com.fasterxml.jackson.databind.JsonNode;
-import org.jgrapes.core.Channel;
-import org.jgrapes.core.Components;
 import org.jgrapes.core.Event;
 
 /**
@@ -42,21 +40,4 @@ public class OsinfoEvent extends Event<Void> {
     public JsonNode osinfo() {
         return osinfo;
     }
-
-    /*
-     * (non-Javadoc)
-     * 
-     * @see java.lang.Object#toString()
-     */
-    @Override
-    public String toString() {
-        StringBuilder builder = new StringBuilder();
-        builder.append(Components.objectName(this)).append(" [")
-            .append(osinfo);
-        if (channels() != null) {
-            builder.append(", channels=").append(Channel.toString(channels()));
-        }
-        builder.append(']');
-        return builder.toString();
-    }
 }

org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/events/RunnerStateChange.java

@@ -26,6 +26,7 @@ import org.jgrapes.core.Event;
 /**
  * The Class RunnerStateChange.
  */
+@SuppressWarnings("PMD.DataClass")
 public class RunnerStateChange extends Event<Void> {
 
     /**

org.jdrupes.vmoperator.util/src/org/jdrupes/vmoperator/util/DataPath.java

@@ -32,6 +32,7 @@ import java.util.logging.Logger;
  */
 public final class DataPath {
 
+    @SuppressWarnings("PMD.FieldNamingConventions")
     private static final Logger logger
         = Logger.getLogger(DataPath.class.getName());
 
@@ -55,6 +56,7 @@ public final class DataPath {
      * @param selectors the selectors
      * @return the result
      */
+    @SuppressWarnings("PMD.UseLocaleWithCaseConversions")
     public static <T> Optional<T> get(Object from, Object... selectors) {
         Object cur = from;
         for (var selector : selectors) {
@@ -130,6 +132,7 @@ public final class DataPath {
     @SuppressWarnings({ "PMD.CognitiveComplexity", "unchecked" })
     public static <T> T deepCopy(T object) {
         if (object instanceof Map map) {
+            @SuppressWarnings("PMD.UseConcurrentHashMap")
             Map<Object, Object> copy;
             try {
                 copy = (Map<Object, Object>) object.getClass().getConstructor()

org.jdrupes.vmoperator.util/src/org/jdrupes/vmoperator/util/GsonPtr.java

@@ -32,7 +32,8 @@ import java.util.function.Supplier;
 /**
  * Utility class for pointing to elements on a Gson (Json) tree.
  */
-@SuppressWarnings({ "PMD.ClassWithOnlyPrivateConstructorsShouldBeFinal" })
+@SuppressWarnings({ "PMD.DataflowAnomalyAnalysis",
+    "PMD.ClassWithOnlyPrivateConstructorsShouldBeFinal", "PMD.GodClass" })
 public class GsonPtr {
 
     private final JsonElement position;
@@ -101,7 +102,7 @@ public class GsonPtr {
      * @param selectors the selectors
      * @return the Gson pointer
      */
-    @SuppressWarnings({ "PMD.PreserveStackTrace" })
+    @SuppressWarnings({ "PMD.ShortMethodName", "PMD.PreserveStackTrace" })
     public Optional<GsonPtr> get(Object... selectors) {
         JsonElement element = position;
         for (Object sel : selectors) {
@@ -145,6 +146,7 @@ public class GsonPtr {
      * @param cls the cls
      * @return the result
      */
+    @SuppressWarnings({ "PMD.AvoidBranchingStatementAsLastInLoop" })
     public <T extends JsonElement> T getAs(Class<T> cls) {
         if (cls.isAssignableFrom(position.getClass())) {
             return cls.cast(position);

org.jdrupes.vmoperator.vmaccess/src/org/jdrupes/vmoperator/vmaccess/VmAccess.java

@@ -111,8 +111,9 @@ import org.jgrapes.webconsole.base.freemarker.FreeMarkerConlet;
  *     users and roles.
  *
  */
-@SuppressWarnings({ "PMD.ExcessiveImports", "PMD.CouplingBetweenObjects",
+@SuppressWarnings({ "PMD.DataflowAnomalyAnalysis", "PMD.ExcessiveImports",
-    "PMD.GodClass", "PMD.TooManyMethods", "PMD.CyclomaticComplexity" })
+    "PMD.CouplingBetweenObjects", "PMD.GodClass", "PMD.TooManyMethods",
+    "PMD.CyclomaticComplexity" })
 public class VmAccess extends FreeMarkerConlet<VmAccess.ResourceModel> {
 
     private static final String VM_NAME_PROPERTY = "vmName";
@@ -166,7 +167,7 @@ public class VmAccess extends FreeMarkerConlet<VmAccess.ResourceModel> {
      * 
      * @param event the event
      */
-    @SuppressWarnings({ "unchecked" })
+    @SuppressWarnings({ "unchecked", "PMD.AvoidDuplicateLiterals" })
     @Handler
     public void onConfigurationUpdate(ConfigurationUpdate event) {
         event.structured(componentPath())
@@ -266,7 +267,7 @@ public class VmAccess extends FreeMarkerConlet<VmAccess.ResourceModel> {
     public void onConsoleConfigured(ConsoleConfigured event,
             ConsoleConnection connection) throws InterruptedException,
             IOException {
-        @SuppressWarnings({ "unchecked" })
+        @SuppressWarnings({ "unchecked", "PMD.PrematureDeclaration" })
         final var rendered
             = (Set<ResourceModel>) connection.session().get(RENDERED);
         connection.session().remove(RENDERED);
@@ -276,7 +277,8 @@ public class VmAccess extends FreeMarkerConlet<VmAccess.ResourceModel> {
         addMissingConlets(event, connection, rendered);
     }
 
-    @SuppressWarnings({ "PMD.AvoidInstantiatingObjectsInLoops" })
+    @SuppressWarnings({ "PMD.AvoidInstantiatingObjectsInLoops",
+        "PMD.AvoidDuplicateLiterals" })
     private void addMissingConlets(ConsoleConfigured event,
             ConsoleConnection connection, final Set<ResourceModel> rendered)
             throws InterruptedException {
@@ -404,6 +406,7 @@ public class VmAccess extends FreeMarkerConlet<VmAccess.ResourceModel> {
     }
 
     @Override
+    @SuppressWarnings({ "PMD.AvoidInstantiatingObjectsInLoops" })
     protected Set<RenderMode> doRenderConlet(RenderConletRequestBase<?> event,
             ConsoleConnection channel, String conletId, ResourceModel model)
             throws Exception {
@@ -652,8 +655,9 @@ public class VmAccess extends FreeMarkerConlet<VmAccess.ResourceModel> {
      * @throws InterruptedException 
      */
     @Handler(namedChannels = "manager")
-    @SuppressWarnings({ "PMD.CognitiveComplexity",
+    @SuppressWarnings({ "PMD.ConfusingTernary", "PMD.CognitiveComplexity",
-        "PMD.AvoidInstantiatingObjectsInLoops" })
+        "PMD.AvoidInstantiatingObjectsInLoops", "PMD.AvoidDuplicateLiterals",
+        "PMD.ConfusingArgumentToVarargsMethod" })
     public void onVmResourceChanged(VmResourceChanged event, VmChannel channel)
             throws IOException, InterruptedException {
         var vmDef = event.vmDefinition();
@@ -849,7 +853,8 @@ public class VmAccess extends FreeMarkerConlet<VmAccess.ResourceModel> {
                 model.getConletId(), "openConsole", cf)));
     }
 
-    @SuppressWarnings({ "PMD.UseLocaleWithCaseConversions" })
+    @SuppressWarnings({ "PMD.AvoidLiteralsInIfCondition",
+        "PMD.UseLocaleWithCaseConversions" })
     private void selectResource(NotifyConletModel event,
             ConsoleConnection channel, ResourceModel model)
             throws JsonProcessingException, InterruptedException {
@@ -876,6 +881,7 @@ public class VmAccess extends FreeMarkerConlet<VmAccess.ResourceModel> {
     /**
      * The Class AccessModel.
      */
+    @SuppressWarnings("PMD.DataClass")
     public static class ResourceModel extends ConletBaseModel {
 
         /**

org.jdrupes.vmoperator.vmmgmt/resources/org/jdrupes/vmoperator/vmmgmt/VmMgmt-view.ftl.html

@@ -30,7 +30,7 @@
       </tr>
     </thead>
     <tbody>
-      <template v-for="(entry, rowIndex) in filteredData" :key="entry.name">
+      <template v-for="(entry, rowIndex) in filteredData">
         <tr :class="[(rowIndex % 2) ? 'odd' : 'even']"
           :aria-expanded="(entry.name in detailsByName) ? 'true' : 'false'">
           <td v-for="key in controller.keys" 

org.jdrupes.vmoperator.vmmgmt/src/org/jdrupes/vmoperator/vmmgmt/TimeSeries.java

@@ -28,6 +28,7 @@ import java.util.List;
 /**
  * The Class TimeSeries.
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class TimeSeries {
 
     @SuppressWarnings("PMD.LooseCoupling")

org.jdrupes.vmoperator.vmmgmt/src/org/jdrupes/vmoperator/vmmgmt/VmMgmt.java

@@ -75,7 +75,8 @@ import org.jgrapes.webconsole.base.freemarker.FreeMarkerConlet;
 /**
  * The Class {@link VmMgmt}.
  */
-@SuppressWarnings({ "PMD.CouplingBetweenObjects", "PMD.ExcessiveImports" })
+@SuppressWarnings({ "PMD.DataflowAnomalyAnalysis", "PMD.CouplingBetweenObjects",
+    "PMD.ExcessiveImports" })
 public class VmMgmt extends FreeMarkerConlet<VmMgmt.VmsModel> {
 
     private Class<?> preferredIpVersion = Inet4Address.class;
@@ -111,7 +112,7 @@ public class VmMgmt extends FreeMarkerConlet<VmMgmt.VmsModel> {
      * 
      * @param event the event
      */
-    @SuppressWarnings({ "unchecked" })
+    @SuppressWarnings({ "unchecked", "PMD.AvoidDuplicateLiterals" })
     @Handler
     public void onConfigurationUpdate(ConfigurationUpdate event) {
         event.structured("/Manager/GuiHttpServer"
@@ -176,6 +177,7 @@ public class VmMgmt extends FreeMarkerConlet<VmMgmt.VmsModel> {
     }
 
     @Override
+    @SuppressWarnings("PMD.AvoidInstantiatingObjectsInLoops")
     protected Set<RenderMode> doRenderConlet(RenderConletRequestBase<?> event,
             ConsoleConnection channel, String conletId, VmsModel conletState)
             throws Exception {
@@ -228,6 +230,7 @@ public class VmMgmt extends FreeMarkerConlet<VmMgmt.VmsModel> {
             simplifiedVmDefinition(vmDef, user, roles)));
     }
 
+    @SuppressWarnings("PMD.AvoidDuplicateLiterals")
     private Map<String, Object> simplifiedVmDefinition(VmDefinition vmDef,
             String user, List<String> roles) {
         // Convert RAM sizes to unitless numbers
@@ -267,8 +270,9 @@ public class VmMgmt extends FreeMarkerConlet<VmMgmt.VmsModel> {
      * @throws IOException 
      */
     @Handler(namedChannels = "manager")
-    @SuppressWarnings({ "PMD.CognitiveComplexity",
+    @SuppressWarnings({ "PMD.ConfusingTernary", "PMD.CognitiveComplexity",
-        "PMD.AvoidInstantiatingObjectsInLoops" })
+        "PMD.AvoidInstantiatingObjectsInLoops", "PMD.AvoidDuplicateLiterals",
+        "PMD.ConfusingArgumentToVarargsMethod" })
     public void onVmResourceChanged(VmResourceChanged event, VmChannel channel)
             throws IOException {
         var vmName = event.vmDefinition().name();
@@ -374,6 +378,8 @@ public class VmMgmt extends FreeMarkerConlet<VmMgmt.VmsModel> {
 
     }
 
+    @SuppressWarnings({ "PMD.AvoidLiteralsInIfCondition",
+        "PMD.LambdaCanBeMethodReference" })
     private Summary evaluateSummary(boolean force) {
         if (!force && cachedSummary != null) {
             return cachedSummary;
@@ -396,7 +402,8 @@ public class VmMgmt extends FreeMarkerConlet<VmMgmt.VmsModel> {
     }
 
     @Override
-    @SuppressWarnings({ "PMD.NcssCount" })
+    @SuppressWarnings({ "PMD.AvoidDecimalLiteralsInBigDecimalConstructor",
+        "PMD.NcssCount" })
     protected void doUpdateConletState(NotifyConletModel event,
             ConsoleConnection channel, VmsModel model) throws Exception {
         event.stop();