Bug 513790 - Compiler warnings in I20170316-2000 after moving to M6
compiler 
diff --git a/org.eclipse.pde.build/src/org/eclipse/pde/internal/build/FeatureGenerator.java b/org.eclipse.pde.build/src/org/eclipse/pde/internal/build/FeatureGenerator.java
index b511e6a..84cba94 100644
--- a/org.eclipse.pde.build/src/org/eclipse/pde/internal/build/FeatureGenerator.java
+++ b/org.eclipse.pde.build/src/org/eclipse/pde/internal/build/FeatureGenerator.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2006, 2013 IBM Corporation and others.
+ * Copyright (c) 2006, 2017 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -288,6 +288,7 @@
 	 * Based on the version of OSGi that we have in our state, add the appropriate plug-ins/fragments/features
 	 * for the launcher.
 	 */
+	@SuppressWarnings("unlikely-arg-type")
 	private void addLauncher(PDEState state, Set<Entry> plugins, Set<Entry> fragments, Set<Entry> features) {
 		BundleDescription bundle = state.getResolvedBundle(BUNDLE_OSGI);
 		if (bundle == null)