It looks like your groovy bundle is not downloaded rightly.
Can you try to remove the $ESB_HOME/data directory, and start the servicemix and install the camel-groovy feature again, to see if the error is gone.
Btw, your FUSE ESB version is quite old, how about use the latest released version.
thanks for reply. Of course I had tried to remove data folder before posted this problem.
I don't know why but there was a problem with groovy-all (version 1.7.0) artifact. In our Nexus Repo there was no jar file, in local repo too.
Probably fuse cant find it in suggested repositories.
I added the jar to my local repo and now it works fine.
This issue is caused by using Felix and not Equinox as OSGi container. If you switch back to using the default Equinox, the camel-groovy feature installs fine.
To switch back:
See comments on ESB-1423 for more details.