Do I need to add jar path in build.gradle???

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Hi Martin, do you mean that I should make a lib/ folder inside the package and put it my jar file in there? "my.jar" file is in "home/robo/my_stack/jar/my.jar" while the build.gradle is "home/robo/my_stack/my_pkg/build.gradle". Can I use this path?

Personally, I think it's cleaner if the jar file is inside your package, but you could of course also alter the path: compile fileTree(dir:'../jar/my.jar', ...).

Thanks a lot.

I put my jar file in the build/install/rosjava_tutorial_pubsub/lib where all the other jars were present. I also added the following line to my build.gradle file--compile fileTree(dir: 'build/install/rosjava_tutorial_pubsub/lib', include: 'lin.jar') Do i need to make changes in the package.xml as well?

@uzair: This answer was about the Fuerte, pre-catkin version of rosjava (and by 'lib' I meant a new subdirectory of your package). The Groovy/Hydro version of rosjava uses catkin and is much different, so I don't know how things work there. Best ask a new question.

@martin : It all works now. I just had to add this in my build.gradle in the dependencies{}. "compile files('lib/myjar.jar')"

In that case, my solution should also work (and you don't have to specify each jar file separately).