fix: remove map attribute holder

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/api/reconciler/Context.java

@@ -5,7 +5,7 @@
 import io.javaoperatorsdk.operator.api.config.ConfigurationService;
 import io.javaoperatorsdk.operator.api.reconciler.dependent.ManagedDependentResourceContext;
 
-public interface Context extends AttributeHolder {
+public interface Context {
 
   Optional<RetryInfo> getRetryInfo();
 
@@ -15,13 +15,6 @@ default <T> Optional<T> getSecondaryResource(Class<T> expectedType) {
 
   <T> Optional<T> getSecondaryResource(Class<T> expectedType, String eventSourceName);
 
-  @Override
-  default <T> T getMandatory(Object key, Class<T> expectedType) {
-    return get(key, expectedType).orElseThrow(() -> new IllegalStateException(
-        "Mandatory attribute (key: " + key + ", type: " + expectedType.getName()
-            + ") is missing or not of the expected type"));
-  }
-
   ConfigurationService getConfigurationService();
 
   ManagedDependentResourceContext managedDependentResourceContext();

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/api/reconciler/DefaultContext.java

@@ -7,7 +7,7 @@
 import io.javaoperatorsdk.operator.api.reconciler.dependent.ManagedDependentResourceContext;
 import io.javaoperatorsdk.operator.processing.Controller;
 
-public class DefaultContext<P extends HasMetadata> extends MapAttributeHolder implements Context {
+public class DefaultContext<P extends HasMetadata> implements Context {
 
   private final RetryInfo retryInfo;
   private final Controller<P> controller;

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/api/reconciler/EventSourceContext.java

@@ -11,7 +11,7 @@
  *
  * @param <P> the type associated with the primary resource that is handled by your reconciler
  */
-public class EventSourceContext<P extends HasMetadata> extends MapAttributeHolder {
+public class EventSourceContext<P extends HasMetadata> {
 
   private final ResourceCache<P> primaryCache;
   private final ConfigurationService configurationService;