Index: Lib/test/test_java_integration.py
===================================================================
--- Lib/test/test_java_integration.py	(revision 6415)
+++ Lib/test/test_java_integration.py	(working copy)
@@ -439,6 +439,32 @@
         unserializer = ObjectInputStream(input)
         self.assertEqual(date_list, unserializer.readObject())
 
+
+
+class WrappedJavaObjectEqualityTest (unittest.TestCase):
+    # Test for bug #1338
+    def test_equals(self):
+        a = range(0,5)
+
+        x = ArrayList()
+        x.addAll(a)
+
+        y = Vector()
+        y.addAll(a)
+
+        z = ArrayList()
+        z.addAll(range(1,6))
+
+        self.assert_(x.equals(y))
+        self.assert_(x == y)
+        self.assert_(not (x != y))
+
+        self.assert_(not x.equals(z))
+        self.assert_(not (x == z))
+        self.assert_(x != z)
+
+
+
 def test_main():
     test_support.run_unittest(InstantiationTest, 
                               BeanTest, 
@@ -454,7 +480,8 @@
                               JavaDelegationTest,
                               SecurityManagerTest,
                               JavaWrapperCustomizationTest,
-                              SerializationTest)
+                              SerializationTest,
+                              WrappedJavaObjectEqualityTest)
 
 if __name__ == "__main__":
     test_main()
Index: src/org/python/core/PyJavaType.java
===================================================================
--- src/org/python/core/PyJavaType.java	(revision 6415)
+++ src/org/python/core/PyJavaType.java	(working copy)
@@ -510,7 +510,7 @@
                 @Override
                 public PyObject __call__(PyObject o) {
                     Object proxy = self.getJavaProxy();
-                    Object oAsJava = o.__tojava__(proxy.getClass());
+                    Object oAsJava = o.getJavaProxy();
                     return proxy.equals(oAsJava) ? Py.True : Py.False;
                 }
             });
@@ -518,7 +518,7 @@
                 @Override
                 public PyObject __call__(PyObject o) {
                     Object proxy = self.getJavaProxy();
-                    Object oAsJava = o.__tojava__(proxy.getClass());
+                    Object oAsJava = o.getJavaProxy();
                     return !proxy.equals(oAsJava) ? Py.True : Py.False;
                 }
             });