diff --git a/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/CpuController.java b/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/CpuController.java
index 7bdae2f..cd38fcc 100644
--- a/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/CpuController.java
+++ b/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/CpuController.java
@@ -51,7 +51,7 @@ public class CpuController extends Component {
      * Instantiates a new CPU controller.
      *
      * @param componentChannel the component channel
-     * @param qemuMonitor 
+     * @param monitor the monitor
      */
     @SuppressWarnings("PMD.AssignmentToNonFinalStatic")
     public CpuController(Channel componentChannel, QemuMonitor monitor) {
@@ -88,7 +88,6 @@ public class CpuController extends Component {
      * On monitor result.
      *
      * @param result the result
-     * @param channel the channel
      */
     @Handler
     public void onMonitorResult(MonitorResult result) {
diff --git a/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/QemuMonitor.java b/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/QemuMonitor.java
index 8b21e47..6240957 100644
--- a/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/QemuMonitor.java
+++ b/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/QemuMonitor.java
@@ -85,9 +85,7 @@ public class QemuMonitor extends Component {
      * Instantiates a new qemu monitor.
      *
      * @param componentChannel the component channel
-     * @param mapper 
-     * @throws JsonProcessingException 
-     * @throws JsonMappingException 
+     * @throws IOException Signals that an I/O exception has occurred.
      */
     @SuppressWarnings("PMD.AssignmentToNonFinalStatic")
     public QemuMonitor(Channel componentChannel) throws IOException {
diff --git a/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/RamController.java b/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/RamController.java
index 993601f..76b3c5a 100644
--- a/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/RamController.java
+++ b/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/RamController.java
@@ -44,7 +44,7 @@ public class RamController extends Component {
      * Instantiates a new CPU controller.
      *
      * @param componentChannel the component channel
-     * @param qemuMonitor 
+     * @param monitor the monitor
      */
     @SuppressWarnings("PMD.AssignmentToNonFinalStatic")
     public RamController(Channel componentChannel, QemuMonitor monitor) {
diff --git a/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/events/MonitorCommandCompleted.java b/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/events/MonitorCommandCompleted.java
index 5d3c844..ed590c4 100644
--- a/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/events/MonitorCommandCompleted.java
+++ b/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/events/MonitorCommandCompleted.java
@@ -35,7 +35,7 @@ public class MonitorCommandCompleted extends Event<Void> {
      * Instantiates a new monitor command.
      *
      * @param command the command
-     * @param arguments the arguments
+     * @param result the result
      */
     public MonitorCommandCompleted(Command command, Object result) {
         super();
diff --git a/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/events/MonitorResult.java b/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/events/MonitorResult.java
index 97275dd..cf25b13 100644
--- a/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/events/MonitorResult.java
+++ b/org.jdrupes.vmoperator.runner.qemu/src/org/jdrupes/vmoperator/runner/qemu/events/MonitorResult.java
@@ -33,7 +33,7 @@ public class MonitorResult extends Event<Void> {
      * Instantiates a new monitor result.
      *
      * @param executed the command executed
-     * @param returned the values returned
+     * @param response the response
      */
     public MonitorResult(String executed, JsonNode response) {
         this.executed = executed;