diff --git a/org.eclipse.xtext/src/org/eclipse/xtext/resource/containers/LiveShadowedAllContainerState.java b/org.eclipse.xtext/src/org/eclipse/xtext/resource/containers/LiveShadowedAllContainerState.java
index 91470b3d7..20b487999 100644
--- a/org.eclipse.xtext/src/org/eclipse/xtext/resource/containers/LiveShadowedAllContainerState.java
+++ b/org.eclipse.xtext/src/org/eclipse/xtext/resource/containers/LiveShadowedAllContainerState.java
@@ -8,9 +8,7 @@
  *******************************************************************************/
 package org.eclipse.xtext.resource.containers;
 
-import java.util.ArrayList;
 import java.util.Collection;
-import java.util.HashSet;
 import java.util.Iterator;
 import java.util.LinkedHashSet;
 import java.util.List;