Index: src/org/python/core/PyDictionary.java
===================================================================
--- src/org/python/core/PyDictionary.java	(revision 5366)
+++ src/org/python/core/PyDictionary.java	(working copy)
@@ -428,13 +428,15 @@
             PyObject arg = args[0];
             if (arg.__findattr__("keys") != null) {
                 merge(arg);
+            } else if (arg.__findattr__("keySet") != null) {
+                mergeFromKeys(arg, arg.invoke("keySet"));
             } else {
                 mergeFromSeq(arg);
             }
         }
         for (int i = 0; i < keywords.length; i++) {
             dict___setitem__(Py.newString(keywords[i]), args[nargs + i]);
-        }        
+        }
     }
 
     /**
Index: bugtests/test403.py
===================================================================
--- bugtests/test403.py	(revision 0)
+++ bugtests/test403.py	(revision 0)
@@ -0,0 +1,24 @@
+#
+# Test for bug 1146
+#
+# dict(<java.util.Map>) should clone the Map
+#
+
+from java.util import HashMap
+import support
+
+x = HashMap()
+x.put('foo', 1)
+x.put('bar', 2)
+x.put('baz', 3)
+
+try:
+    y = dict(x)
+    #print y
+    assert y.get('foo') == 1
+    assert y.get('bar') == 2
+    assert y.get('baz') == 3
+except ValueError, e:
+    raise support.TestError("Unable to pass a Map to dict().")
+except AssertionError, e:
+    raise support.TestError("Failed to properly clone the Map.")