### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core
Index: model/org/eclipse/jdt/internal/core/hierarchy/HierarchyBuilder.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/hierarchy/HierarchyBuilder.java,v
retrieving revision 1.64
diff -u -r1.64 HierarchyBuilder.java
--- model/org/eclipse/jdt/internal/core/hierarchy/HierarchyBuilder.java	2 May 2006 15:06:32 -0000	1.64
+++ model/org/eclipse/jdt/internal/core/hierarchy/HierarchyBuilder.java	1 Aug 2006 16:47:15 -0000
@@ -77,14 +77,16 @@
 		} else {
 			unitsToLookInside = workingCopies;
 		}
-		SearchableEnvironment searchableEnvironment = project.newSearchableNameEnvironment(unitsToLookInside);
-		this.nameLookup = searchableEnvironment.nameLookup;
-		this.hierarchyResolver =
-			new HierarchyResolver(
-				searchableEnvironment,
-				project.getOptions(true),
-				this,
-				new DefaultProblemFactory());
+		if (project != null) {
+			SearchableEnvironment searchableEnvironment = project.newSearchableNameEnvironment(unitsToLookInside);
+			this.nameLookup = searchableEnvironment.nameLookup;
+			this.hierarchyResolver =
+				new HierarchyResolver(
+					searchableEnvironment,
+					project.getOptions(true),
+					this,
+					new DefaultProblemFactory());
+		}
 		this.infoToHandle = new HashMap(5);
 		this.focusQualifiedName = focusType == null ? null : focusType.getFullyQualifiedName();
 	}