I'm using CDI to @Inject a stateless session bean Foo (no-interface local view) into a serializable Bean Bar. Foo is Serializable, so I should be able to serialize and deserialize Bar without problems, but this does not work.
(Actually, I'm not doing this manually: Bar is a Wicket component which gets (de-)serialized automatically when navigating from page to page, and there is a ComponentInstantiationListener taking care of injection on component construction.)
With Glassfish 3.01b21, I get the following exception
java.lang.NullPointerException: null
at javassist.util.proxy.RuntimeSupport$DefaultMethodHandler.invoke(RuntimeSupport.java:37) ~[weld-osgi-bundle.jar:1.0.1.SP3]
at org.javassist.tmp.java.lang.Object_$$_javassist_224.fooMethod(Object_$$_javassist_224.java)
Apparently, the javassist proxy for my Foo object does support serialization in principle, but it fails to (de)serialize the method handler.
I searched the Weld and Javassist archives to see if this was a known problem, and I found this bug (
https://jira.jboss.org/browse/JASSIST-97) which is reported to be fixed in javassist-3.12.0, which is newer than the version of Javassist bundled with the version of Weld used by Glassfish v3.0.1b21
I unpacked the weld-osgi-bundle.jar, replaced the javassist classes by the ones from javassist-3.12.1.GA, repacked everything and launched my Glassfish instance with this modified bundle to see if this problem was solved.
After this change, I got a different serialization problem:
org.apache.wicket.util.io.SerializableChecker$WicketNotSerializableException: Unable to serialize class: com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate
protected java.lang.reflect.InvocationHandler java.lang.reflect.Proxy.h [class=com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate] <----- field that is not serializable
Using @EJB instead of @Inject produces the same exception.
So it seems, however hard I try to make my session bean serializable, the Glassfish container will always give me an unserializable proxy to it. Or in other words, CDI should be transparent, but is not, and I really have no clue how to get out of this situation...
Any ideas anyone?
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