Joe K created WICKET-6704:
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             Summary: JavaSerializer.serialize causes the JVM crash !
                 Key: WICKET-6704
                 URL: https://issues.apache.org/jira/browse/WICKET-6704
             Project: Wicket
          Issue Type: Bug
          Components: wicket-core
    Affects Versions: 8.5.0
         Environment: Windows 7, but probably it's NOT OS dependant
            Reporter: Joe K
         Attachments: jvm-crash_from_wicket.zip

* when trying to serialize my custom object with a non-serializable field by 
JavaSerializer.serialize the JVM crashes instead of throwing the regular 
NotSerializableException !

 * when trying to serialize THE SAME object by java ObjectOutputStream then 
it's handled correctly and NotSerializableException is thrown
 * I'm attaching the very simple source code (Maven project), 1st test 
simulates the wicket issue (JVM crash) and 2nd test simulates the correct 
handling by java ObjectOutputStream
 * the attached example is just the simplification of very large project which 
is massively used by the users, so in fact it's critical for us

 
 * java: 1.8 (probably doesn't matter, tested on 1.8.0_162 and 1.8.0_221)
 * wicket: 8.5.0 (probably the problem is also in other versions)



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