Index: tests/java/org/python/tests/SerializationTest.java
===================================================================
--- tests/java/org/python/tests/SerializationTest.java	(revision 0)
+++ tests/java/org/python/tests/SerializationTest.java	(revision 0)
@@ -0,0 +1,76 @@
+package org.python.tests;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.ObjectOutputStream;
+
+import junit.framework.TestCase;
+
+import org.python.core.PyModule;
+import org.python.core.PyObject;
+import org.python.core.PyStringMap;
+import org.python.core.PySystemState;
+import org.python.core.imp;
+import org.python.util.PythonInterpreter;
+import org.python.util.PythonObjectInputStream;
+
+public class SerializationTest extends TestCase {
+
+    private PythonInterpreter interp;
+
+    @Override
+    protected void setUp() throws Exception {
+        interp = new PythonInterpreter(new PyStringMap(), new PySystemState());
+    }
+
+    public void setupMain() {
+        PyModule mod = imp.addModule("__main__");
+        interp.setLocals(mod.__dict__);
+    }
+
+    public void createObject() {
+        interp.exec("from java.io import Serializable");
+        interp.exec("class Test(Serializable): pass");
+        interp.exec("x = Test()");
+    }
+
+    public byte[] serialize() throws IOException {
+        PyObject x = interp.get("x");
+        ByteArrayOutputStream os = new ByteArrayOutputStream();
+        new ObjectOutputStream(os).writeObject(x);
+        return os.toByteArray();
+    }
+
+    public void deserialize(final byte[] b) throws IOException, ClassNotFoundException {
+        ByteArrayInputStream is = new ByteArrayInputStream(b);
+        new PythonObjectInputStream(is).readObject();
+    }
+
+    public void testSerialization() throws IOException, ClassNotFoundException {
+        deserialize(serialize());
+    }
+
+    public void testDirect() throws IOException, ClassNotFoundException {
+        createObject();
+        testSerialization();
+    }
+
+    public void testJython() {
+        createObject();
+        interp.set("t", this);
+        interp.exec("t.testSerialization()");
+    }
+
+    public void testDirectWithMain() throws IOException, ClassNotFoundException {
+        setupMain();
+        createObject();
+        testSerialization();
+    }
+
+    public void testJythonWithMain() {
+        setupMain();
+        createObject();
+        interp.set("t", this);
+        interp.exec("t.testSerialization()");
+    }
+}