it fix

Signed-off-by: Attila Mészáros <[email protected]>

Author: csviri

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/processing/dependent/kubernetes/KubernetesDependentConverter.java

@@ -3,6 +3,7 @@
 import java.lang.reflect.InvocationTargetException;
 import java.util.Set;
 
+import io.fabric8.kubernetes.api.model.GenericKubernetesResource;
 import io.fabric8.kubernetes.api.model.HasMetadata;
 import io.javaoperatorsdk.operator.api.config.ControllerConfiguration;
 import io.javaoperatorsdk.operator.api.config.Utils;
@@ -60,12 +61,14 @@ private InformerConfiguration<R> createInformerConfiguration(KubernetesDependent
       var resourceType = dependentInstance.resourceType();
 
       InformerConfiguration.InformerConfigurationBuilder informerConfig;
-      if (resourceType.isAssignableFrom(GenericKubernetesDependentResource.class)) {
-        if (configAnnotation.informerConfig() == null ||
-            Constants.NO_VALUE_SET.equals(configAnnotation.informerConfig().groupVersionKind())) {
-          throw new IllegalStateException(
-              "Set groupVersionKind should be set when using GenericKubernetesResource");
+      if (configAnnotation != null && configAnnotation.informerConfig() != null &&
+          !Constants.NO_VALUE_SET.equals(configAnnotation.informerConfig().groupVersionKind())) {
+
+        if (!GenericKubernetesResource.class.isAssignableFrom(resourceType)) {
+          throw new IllegalStateException("If GroupVersionKind is set the resource type must be " +
+              "GenericKubernetesDependentResource. For: " + originatingClass.getName());
         }
+
         informerConfig = InformerConfiguration.from(
             GroupVersionKind.fromString(configAnnotation.informerConfig().groupVersionKind()),
             controllerConfig.getResourceClass());
@@ -77,7 +80,7 @@ private InformerConfiguration<R> createInformerConfiguration(KubernetesDependent
       informerConfig.withSecondaryToPrimaryMapper(
           dependentInstance.getSecondaryToPrimaryMapper().orElse(null));
 
-      if (configAnnotation != null) {
+      if (configAnnotation != null && configAnnotation.informerConfig() != null) {
 
         if (!Constants.NO_VALUE_SET.equals(configAnnotation.informerConfig().name())) {
           informerConfig.withName(dependentInstance.name());