EclEmma Error (No coverage data has been collected during this coverage session)

[Didier D]

Hi,

I'm using Eclipse Neon with EclEmma 2.3.3.201602231923

When I do a "Coverage As > JUnit" on one of my projects, I am getting two pop up error message.
1. "No coverage data has been collected during this coverage session
Please do not terminate the java process manually from eclipse".

2. "com.mountainminds.eclemma.internal.core.launching.agentserver" has encountered a problem.
Error while dumping coverage data(code 5013).

If I only run one half of my JUnit tests, it is OK. If I run only the other half, it is OK too.
After searching a while and adding more tests one by one, I finally got some tests failing because of permGen space being full.

Now, if I add the JVM option -XX:MaxPermSize=128m to my "Coverage As > JUnit" configuration, the problem disapears.

My conclusion is that EclEmma (or something else) doesn't handle correctly the out of memory error and fianlly fails with another error message.

Didier

[Evgeny Mandrikov]

Hi Didier,

Thanks for reaching out. You probably right and handling of non-graceful JVM termination (such as "OutOfMemoryError: PermGen space") might be improved - I suppose that yours expectation is to be able to see an original error message.

We'll check the current behavior and create ticket if necessary.

Best regards,

Evgeny