TCI - Update ConcurrentLinkedSetQueue for internal Java changes

Change-Id: Ifcede3a0211f15c6a791124d6f36d924698ee59d
Signed-off-by: Eugen Neufeld <eneufeld@eclipsesource.com>

bundles/org.eclipse.emf.ecp.view.validation/src/org/eclipse/emf/ecp/view/internal/validation/ConcurrentLinkedSetQueue.java

diff --git a/bundles/org.eclipse.emf.ecp.view.validation/src/org/eclipse/emf/ecp/view/internal/validation/ConcurrentLinkedSetQueue.java b/bundles/org.eclipse.emf.ecp.view.validation/src/org/eclipse/emf/ecp/view/internal/validation/ConcurrentLinkedSetQueue.java
index 8640136..ddfb4e4 100644
--- a/bundles/org.eclipse.emf.ecp.view.validation/src/org/eclipse/emf/ecp/view/internal/validation/ConcurrentLinkedSetQueue.java
+++ b/bundles/org.eclipse.emf.ecp.view.validation/src/org/eclipse/emf/ecp/view/internal/validation/ConcurrentLinkedSetQueue.java
@@ -38,6 +38,26 @@
 
 	private final Set<Object> concurrentSet = Collections.newSetFromMap(new ConcurrentHashMap<Object, Boolean>());
 
+	@Override
+	public void clear() {
+		super.clear();
+		concurrentSet.clear();
+	}
+
+	@Override
+	public boolean removeAll(Collection<?> c) {
+		final boolean result = super.removeAll(c);
+		concurrentSet.removeAll(c);
+		return result;
+	}
+
+	@Override
+	public boolean retainAll(Collection<?> c) {
+		final boolean result = super.retainAll(c);
+		concurrentSet.retainAll(c);
+		return result;
+	}
+
 	/**
 	 * Adds the object to the tail of this queue, if not already contained.
 	 *