[jboss-user] [Javassist] - How to add dependencies to bytecode?

pteichmann do-not-reply at jboss.com
Thu Dec 8 10:21:52 EST 2011

pteichmann [http://community.jboss.org/people/pteichmann] created the discussion

"How to add dependencies to bytecode?"

To view the discussion, visit: http://community.jboss.org/message/640587#640587

Hi there,

I am just working on an instrumentation project. Target is to instrument android applications. I know its a different VM, but I found a way that works :-).

I do the instrumentation, after the sources are compiled to bytecode, so I have real Java Bytecode. This I can manipulate with javassist. After this the normal way of the android build process runs. All is controlled by ant scripts. The package (apk) is built without errors.

Instrumentation works good so far, but when I try to run the application on a device, I get an exception, calling "Method not found" or similiar.

I instrument something that uses a java.util.Set. When I run the application, the above mentioned exception is thrown. I gues, this is because the javasssit compiler knows about the java.util.set, cause I added the package to the classpool. but somehow it is no longer available, when the javassist process is done.

my question:

is there any possibility to put all needed dependencies, occured in javassist to the bytecode, produced by the javacompiler?

If you don't understand my problem, I can try to describe it a different way. But if you understand it, I would be nice to help ma in any way.

Thanks a lot in advance.

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