### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core
Index: model/org/eclipse/jdt/internal/core/hierarchy/HierarchyResolver.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/hierarchy/HierarchyResolver.java,v
retrieving revision 1.92
diff -u -r1.92 HierarchyResolver.java
--- model/org/eclipse/jdt/internal/core/hierarchy/HierarchyResolver.java	11 Feb 2010 17:09:18 -0000	1.92
+++ model/org/eclipse/jdt/internal/core/hierarchy/HierarchyResolver.java	5 Apr 2010 09:48:08 -0000
@@ -502,7 +502,11 @@
 	fixSupertypeBindings();
 
 	int objectIndex = -1;
+	IProgressMonitor progressMonitor = this.builder.hierarchy.progressMonitor;
 	for (int current = this.typeIndex; current >= 0; current--) {
+		if (progressMonitor != null && progressMonitor.isCanceled())
+			throw new OperationCanceledException();
+		
 		ReferenceBinding typeBinding = this.typeBindings[current];
 
 		// java.lang.Object treated at the end