How to customize RMI socket factory

Hello all,
I'm trying to follow the instructions of an article published in JavaWorld, regarding data compression: http://www.javaworld.com/javaworld/javaqa/2001-12/01-qa-1207-ziprmi.html
I'm getting a "no current ZIP entry" exception when running my client application.
java.rmi.RemoteException: ; nested exception is:
java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is:
java.util.zip.ZipException: no current ZIP entry
at com.foo.rmi.RMICSSClient.info(RMICSSClient.java:111)
at com.foo.ServiceTest.test(ServiceTest.java:26)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at junit.framework.TestCase.runTest(TestCase.java:164)
at junit.framework.TestCase.runBare(TestCase.java:130)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:120)
at junit.framework.TestSuite.runTest(TestSuite.java:228)
at junit.framework.TestSuite.run(TestSuite.java:223)
at org.junit.internal.runners.OldTestClassRunner.run(OldTestClassRunner.java:35)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:38)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is:
java.util.zip.ZipException: no current ZIP entry
at sun.rmi.transport.tcp.TCPChannel.createConnection(Unknown Source)
at sun.rmi.transport.tcp.TCPChannel.newConnection(Unknown Source)
at sun.rmi.server.UnicastRef.invoke(Unknown Source)
at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(Unknown Source)
at java.rmi.server.RemoteObjectInvocationHandler.invoke(Unknown Source)
at $Proxy0.info(Unknown Source)
at com.foo.rmi.RMICSSClient.info(RMICSSClient.java:89)
... 20 more
Caused by: java.util.zip.ZipException: no current ZIP entry
at java.util.zip.ZipOutputStream.write(Unknown Source)
at java.io.BufferedOutputStream.flushBuffer(Unknown Source)
at java.io.BufferedOutputStream.flush(Unknown Source)
at java.io.DataOutputStream.flush(Unknown Source)
... 27 more
Can someone please assist me solving this problem?
Thanks,
Barak.

I don't believe the code given in that article can possibly work. You have to call ZipOutputStream.finish() at some point for anything to be received at all, and when driven by RMI there is no well-defined point from the ZipSocket's point of view for that to be done.
I would avoid compression altogether. It places an extra load on the client CPU, which is OK, but also on the server CPU, which is not OK. It adds latency to the calls. It saves 50% of the data space if you're lucky. You'd have to have remarkably large object parameters and results for it to be a genuine win.

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