6916: JOverflow treemap listener depending on internal SWT class

Reviewed-by: aptmac, ghb

Author: thegreystone

application/org.openjdk.jmc.joverflow.ui/src/main/java/org/openjdk/jmc/joverflow/ui/TreemapAction.java

@@ -39,8 +39,6 @@
 import org.openjdk.jmc.ui.CoreImages;
 
 class TreemapAction extends Action {
-	private static final String ICON_RESET = "reset.gif"; //$NON-NLS-1$
-
 	private final TreemapActionType actionType;
 	private Runnable runnable = () -> {
 	};

application/org.openjdk.jmc.joverflow.ui/src/main/java/org/openjdk/jmc/joverflow/ui/swt/events/TreemapListener.java

@@ -33,16 +33,16 @@
  */
 package org.openjdk.jmc.joverflow.ui.swt.events;
 
-import org.eclipse.swt.internal.SWTEventListener;
-import org.openjdk.jmc.joverflow.ui.swt.Treemap;
-
+import java.util.EventListener;
 import java.util.function.Consumer;
 
+import org.openjdk.jmc.joverflow.ui.swt.Treemap;
+
 /**
  * Classes which implement this interface provide methods that deal with setting new item as top for
  * a treemap.
  */
-public interface TreemapListener extends SWTEventListener {
+public interface TreemapListener extends EventListener {
 
 	/**
 	 * Sent when a treemap becomes the new top.