Using method reference in NonSynModelMergePage

Change-Id: I54c5bea1b8b4d5023938869bcd4c5908a7b83127
Signed-off-by: Lars Vogel <Lars.Vogel@vogella.com>
diff --git a/examples/org.eclipse.team.examples.filesystem/src/org/eclipse/team/examples/filesystem/ui/NonSyncModelMergePage.java b/examples/org.eclipse.team.examples.filesystem/src/org/eclipse/team/examples/filesystem/ui/NonSyncModelMergePage.java
index b6cba56..2a816f9 100644
--- a/examples/org.eclipse.team.examples.filesystem/src/org/eclipse/team/examples/filesystem/ui/NonSyncModelMergePage.java
+++ b/examples/org.eclipse.team.examples.filesystem/src/org/eclipse/team/examples/filesystem/ui/NonSyncModelMergePage.java
@@ -232,7 +232,7 @@
 	private void hookContextMenu(final TreeViewer viewer) {
 		final MenuManager menuMgr = new MenuManager();
 		menuMgr.setRemoveAllWhenShown(true);
-		menuMgr.addMenuListener(manager -> fillContextMenu(manager));
+		menuMgr.addMenuListener(this::fillContextMenu);
 		Menu menu = menuMgr.createContextMenu(viewer.getControl());
 		viewer.getControl().setMenu(menu);
 	}