[Riyad Kalla]

Try a new project, does that work? If not, try a new workspace (File > Switch Workspace > C:\tempworkspace, hit OK) then a new project. Does that work?

Did you try restarting using the -clean command line argument? Stale plugin state can cause all sorts of problems.

[tory]

We are building a .jar file with Ant. However, we cannot debug into this .jar after attaching the source code to the .jar. There are a couple of places on the web that say this can happen if building a .jar with Ant, but they give no solution. Does anyone know how to correct this (other than not using Ant)?

[tory]

I just went to File => Export => JAR file and manually created the needed .jar file. I was then able to debug into the .jar after I attached the source and redeployed to the server. Seems Ant is the problem. Does anyone know why there is a problem with Ant building the .jar files?

[Riyad Kalla]

The reason Ant is the problem is that by default the <javac> task does not include debug information in the generated class files. Just make sure to set debug to true and include all 3 of the debugging informaiton types. Please refer to the Ant documentation for the javac task for more information.

[Kuckuck]

Thank you… rkalla..
That was the mistake. If have to change the javac option in my build.xml <javac debug=”true” … > and now after comiling i can install breakpoints.
Thanks again for your help… 🙂

Georg

[Riyad Kalla]

Very cool, glad it’s working.

[gglamonakis]

I run in a fairly complex environment where our build room built our project using java 50 however the runtime environement into which the project used a different build of java50 – an IBM specific thing I think called J9

When I launched my project for remote debugging with this j9 jvm, I got that unable to install break point error. I changed the way I launch this appliation to use the java 50 version it was built with and the error goes away.

Best Regards,
Greg

[Riyad Kalla]

Greg,
Thank you for posting your findings for other users possibly running into the same issue.

[Author]

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