add missing @since 3.0.2

maven-core/src/main/java/org/apache/maven/eventspy/AbstractEventSpy.java

@@ -21,6 +21,7 @@ package org.apache.maven.eventspy;
 
 /**
  * A skeleton eventspy that does nothing other than helping implementors.
+ * @since 3.0.2
  */
 public abstract class AbstractEventSpy
     implements EventSpy

maven-core/src/main/java/org/apache/maven/eventspy/EventSpy.java

@@ -27,6 +27,7 @@ import java.util.Map;
  * looks up all implementators of this interface and calls their {@link #init(Context)} method. <em>Note:</em>
  * Implementors are strongly advised to inherit from {@link AbstractEventSpy} instead of directly implementing this
  * interface.
+ * @since 3.0.2
  */
 public interface EventSpy
 {

maven-core/src/main/java/org/apache/maven/eventspy/internal/EventSpyDispatcher.java

@@ -31,6 +31,7 @@ import org.eclipse.aether.RepositoryListener;
 
 /**
  * Dispatches callbacks to all registered eventspies.
+ * @since 3.0.2
  */
 @Component( role = EventSpyDispatcher.class )
 public class EventSpyDispatcher

maven-core/src/main/java/org/apache/maven/eventspy/internal/EventSpyExecutionListener.java

@@ -25,6 +25,7 @@ import org.apache.maven.execution.ExecutionListener;
 
 /**
  * Forwards execution events to eventspies.
+ * @since 3.0.2
  */
 class EventSpyExecutionListener
     extends AbstractExecutionListener

maven-core/src/main/java/org/apache/maven/eventspy/internal/EventSpyRepositoryListener.java

@@ -25,6 +25,7 @@ import org.eclipse.aether.RepositoryListener;
 
 /**
  * Forwards repository events to eventspies.
+ * @since 3.0.2
  */
 class EventSpyRepositoryListener
     extends AbstractRepositoryListener