### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core.tests.model
Index: src/org/eclipse/jdt/core/tests/model/TypeHierarchyTests.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/TypeHierarchyTests.java,v
retrieving revision 1.73
diff -u -r1.73 TypeHierarchyTests.java
--- src/org/eclipse/jdt/core/tests/model/TypeHierarchyTests.java	27 Sep 2007 10:30:32 -0000	1.73
+++ src/org/eclipse/jdt/core/tests/model/TypeHierarchyTests.java	27 Sep 2007 10:46:00 -0000
@@ -585,6 +585,16 @@
 	IType type = getClassFile("TypeHierarchy", "lib.jar", "binary", "I.class").getType();
 	assertTrue("I must be included", this.typeHierarchy.contains(type));
 }
+/*
+ * Ensures that contains(IType) returns false for Object for a super type hierarchy on an interface.
+ * (regression test for bug 204777 ITypeHierarchy.contains(<Object>) wrong for interface hierarchies)
+ */
+public void testContains4() throws JavaModelException {
+	IType type = getCompilationUnit("/TypeHierarchy15/src/I.java").getType("I");
+	ITypeHierarchy hierarchy = type.newSupertypeHierarchy(null);
+	IType obj = getClassFile("TypeHierarchy15", getExternalJCLPathString("1.5"), "java.lang", "Object.class").getType();
+	assertFalse("Hierarchy should not contain java.lang.Object", hierarchy.contains(obj));
+}
 public void testCycle() throws JavaModelException {
 	IType type = getCompilationUnit("/TypeHierarchy/src/cycle/X.java").getType("X");
 	ITypeHierarchy hierarchy = type.newSupertypeHierarchy(null);