Index: model/org/eclipse/jdt/internal/core/hierarchy/HierarchyResolver.java
===================================================================
RCS file: /data/cvs/eclipse/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/hierarchy/HierarchyResolver.java,v
retrieving revision 1.44
diff -u -r1.44 HierarchyResolver.java
--- model/org/eclipse/jdt/internal/core/hierarchy/HierarchyResolver.java	26 May 2004 10:10:09 -0000	1.44
+++ model/org/eclipse/jdt/internal/core/hierarchy/HierarchyResolver.java	4 Jun 2004 11:49:23 -0000
@@ -585,6 +585,7 @@
 					try {
 						IType[] topLevelTypes = cu.getTypes();
 						int topLevelLength = topLevelTypes.length;
+						if (topLevelLength == 0) continue; // empty cu: no need to parse (see https://bugs.eclipse.org/bugs/show_bug.cgi?id=65677)
 						typeInfos = new SourceTypeElementInfo[topLevelLength];
 						for (int j = 0; j < topLevelLength; j++) {
 							IType topLevelType = topLevelTypes[j];