IS is deleting my package

Hi all,

I am trying to develop a custom adapter. Initially my adapter uses a custom jar that was created for java 1.5, so I retroweaved the jar and am trying to use it with wm IS 7.0. The problem is, whenever I try to create a connection for the adapter, IS deletes my package! It started when I tried to use the retroweaved jar. Is this some sort of IS protection for bytecode weaving?