Merge branch 'release/v4.0.x' into release/v4.x

.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

deploy/vmop-deployment.yaml

@@ -20,8 +20,7 @@ spec:
       containers:
         - name: vm-operator
           image: >-
-            ghcr.io/mnlipp/org.jdrupes.vmoperator.manager:latest
+            ghcr.io/mnlipp/org.jdrupes.vmoperator.manager:4.0.2
-          imagePullPolicy: Always
           env:
           - name: JAVA_OPTS
             # The VM operator needs about 25 MB of memory, plus 1 MB for

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/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/K8s.java

@@ -47,7 +47,8 @@ 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 {
 
     /**
@@ -112,6 +113,7 @@ 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);
 

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

@@ -48,7 +48,8 @@ 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 +231,7 @@ 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 +638,7 @@ 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 +651,7 @@ 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);
@@ -814,7 +818,7 @@ 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,
             List<Pair> collectionQueryParams, Object body,
@@ -843,7 +847,7 @@ 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,
             List<Pair> queryParams, List<Pair> collectionQueryParams,

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

@@ -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
             }
         }
     }

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

@@ -31,6 +31,7 @@ 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 +64,8 @@ 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 +83,8 @@ 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);

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> {
 
@@ -39,6 +40,7 @@ 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,

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

@@ -48,7 +48,7 @@ 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 +200,7 @@ 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 +218,7 @@ 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 +248,7 @@ 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);
@@ -369,6 +371,7 @@ 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 +397,8 @@ 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

@@ -46,10 +46,11 @@ 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")

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

@@ -31,6 +31,7 @@ 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 +64,8 @@ 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 +83,8 @@ 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);

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/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/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/LoadBalancerReconciler.java

@@ -45,6 +45,7 @@ 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 +86,7 @@ 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);

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

@@ -53,6 +53,7 @@ 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> {
 

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

@@ -49,6 +49,7 @@ 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 +75,7 @@ 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 {

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

@@ -71,6 +71,7 @@ import org.jgrapes.core.annotation.Handler;
  * 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> {
 
@@ -106,6 +107,7 @@ public class VmMonitor extends
         purge();
     }
 
+    @SuppressWarnings("PMD.CognitiveComplexity")
     private void purge() throws ApiException {
         // Get existing CRs (VMs)
         var known = K8sDynamicStub.list(client(), context(), namespace())
@@ -190,6 +192,7 @@ 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);
@@ -238,6 +241,7 @@ 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/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);

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

@@ -66,7 +66,8 @@ 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")
@@ -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

@@ -43,6 +43,7 @@ import org.jgrapes.util.events.InitialConfiguration;
 /**
  * Updates the CR status.
  */
+@SuppressWarnings("PMD.DataflowAnomalyAnalysis")
 public class VmDefUpdater extends Component {
 
     protected String namespace;

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

@@ -87,7 +87,8 @@ public class VmopAgentClient extends AgentConnector {
     }
 
     @Override
-    @SuppressWarnings({ "PMD.AvoidLiteralsInIfCondition" })
+    @SuppressWarnings({ "PMD.UnnecessaryReturn",
+        "PMD.AvoidLiteralsInIfCondition" })
     protected void processInput(String line) throws IOException {
         logger.finer(() -> "vmop agent(in): " + line);
 

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

@@ -49,6 +49,7 @@ 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());

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/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();