### 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 1.74
diff -u -r1.74 HierarchyResolver.java
--- model/org/eclipse/jdt/internal/core/hierarchy/HierarchyResolver.java	6 Mar 2007 02:38:51 -0000	1.74
+++ model/org/eclipse/jdt/internal/core/hierarchy/HierarchyResolver.java	15 Nov 2007 09:29:45 -0000
@@ -657,16 +657,8 @@
 			} else {
 				// cache binary type binding
 				ClassFile classFile = (ClassFile)openable;
-				IBinaryType binaryType = null;
-				if (classFile.isOpen()) {
-					// create binary type from info
-					IType type = classFile.getType();
-					try {
-						binaryType = (IBinaryType)((JavaElement)type).getElementInfo();
-					} catch (JavaModelException e) {
-						// type exists since class file is opened
-					}
-				} else {
+				IBinaryType binaryType = (IBinaryType) JavaModelManager.getJavaModelManager().getInfo(classFile.getType());
+				if (binaryType == null) {
 					// create binary type from file
 					if (classFile.getPackageFragmentRoot().isArchive()) {
 						binaryType = this.builder.createInfoFromClassFileInJar(classFile);
#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	15 Nov 2007 09:29:47 -0000
@@ -1275,6 +1275,24 @@
 	assertTrue("Unexpected focus type for hierarchy on region", this.typeHierarchy.getType() == null);
 }
 /*
+ * Ensures that a call to IJavaProject.findType("java.lang.Object") doesn't cause the hierarchy
+ * computation to throw a StackOverFlow
+ * (regression test for https://bugs.eclipse.org/bugs/show_bug.cgi?id=209222)
+ */
+public void testFindObject() throws CoreException {
+	try {
+		IJavaProject p = createJavaProject("P");
+		// ensure Object.class is closed
+		p.getPackageFragmentRoot(getExternalJCLPathString()).getPackageFragment("java.lang").getClassFile("Object.class").close();
+		// find Object to fill internal jar type cache
+		IType type = p.findType("java.lang.Object");
+		// create hierarchy
+		type.newTypeHierarchy(null); // should not throw a StackOverFlow
+	} finally {
+		deleteProject("P");
+	}
+}
+/*
  * Ensures that a hierarchy on an type that implements a binary inner interface is correct.
  * (regression test for bug 58440 type hierarchy incomplete when implementing fully qualified interface)
  */