Index: src/org/python/core/PyJavaClass.java
===================================================================
--- src/org/python/core/PyJavaClass.java	(revision 5292)
+++ src/org/python/core/PyJavaClass.java	(working copy)
@@ -75,8 +75,21 @@
         init(c);
     }
 
-    protected PyJavaClass(String name,PackageManager mgr) {
-        __name__ = name;
+    public String __module__;
+    /**
+     * Set the full name of this class.
+     */
+    private void setName(String name) {
+        __name__ = name.substring(name.lastIndexOf(".")+1, name.length());
+        __module__ = name.substring(0, name.lastIndexOf("."));
+    }
+
+    private String fullName() {
+        return __module__ + "." + __name__;
+    }
+
+    protected PyJavaClass(String name, PackageManager mgr) {
+        setName(name);
         this.__mgr__ = mgr;
     }
 
@@ -97,7 +110,7 @@
     }
 
     private static final void initLazy(PyJavaClass jc) {
-        Class c = jc.__mgr__.findClass(null,jc.__name__,"lazy java class");
+        Class c = jc.__mgr__.findClass(null,jc.fullName(),"lazy java class");
         check_lazy_allowed(c); // xxx
         jc.init(c);
         tbl.putCanonical(jc.proxyClass,jc);
@@ -209,7 +222,7 @@
 
     private void init(Class c)  {
         proxyClass = c;
-        __name__ = c.getName();
+        setName(c.getName());
     }
 
     /**
@@ -761,6 +774,8 @@
         }
         if (name == "__name__")
             return new PyString(__name__);
+        if (name == "__module__")
+            return new PyString(__module__);
         if (name == "__bases__") {
             if (__bases__ == null)
                 initialize();
@@ -851,11 +866,11 @@
         if (PyObject.class.isAssignableFrom(proxyClass)) {
             if (Modifier.isAbstract(proxyClass.getModifiers())) {
                             throw Py.TypeError("can't instantiate abstract class ("+
-                                               __name__+")");
+                                               fullName()+")");
             }
             if (__init__ == null) {
                 throw Py.TypeError("no public constructors for "+
-                                   __name__);
+                                   fullName());
             }
             return __init__.make(args,keywords);
         }
@@ -872,6 +887,6 @@
     }
 
     public String toString()  {
-        return "<jclass "+__name__+" "+Py.idstr(this)+">";
+        return "<jclass "+fullName()+" "+Py.idstr(this)+">";
     }
 }
Index: Lib/test/test_class_jy.py
===================================================================
--- Lib/test/test_class_jy.py	(revision 5292)
+++ Lib/test/test_class_jy.py	(working copy)
@@ -273,12 +273,29 @@
         self.assert_(isinstance(retro, OldStyle))
 
 
+class JavaClassNamingTestCase(unittest.TestCase):
+    """
+    Tests for PyJavaClass naming.
+    """
+
+    def test_java_class_name(self):
+        """
+        The __name__ and __module__ attributes of Java classes should be set
+        according to the same convention that Python uses.
+        """
+        from java.lang import String
+        self.assertEqual(String.__name__, "String")
+        self.assertEqual(String.__module__, "java.lang")
+
+
+
 def test_main():
     test_support.run_unittest(ClassGeneralTestCase,
                               ClassNamelessModuleTestCase,
                               BrokenNameTestCase,
                               ClassLocalsTestCase,
-                              IsDescendentTestCase)
+                              IsDescendentTestCase,
+                              JavaClassNamingTestCase)
 
 
 if __name__ == "__main__":