Tim Astle created MTOMCAT-208:
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Summary: JaCoCo instrumentation errors when running
StandaloneWarMojo
Key: MTOMCAT-208
URL: https://issues.apache.org/jira/browse/MTOMCAT-208
Project: Apache Tomcat Maven Plugin
Issue Type: Improvement
Components: tomcat7
Affects Versions: 2.1
Reporter: Tim Astle
Assignee: Olivier Lamy (*$^¨%`£)
Attachments: StandaloneWarMojo.java.patch
We've run into issues with using the plugin with jacoco for code coverage
getting instrumentation errors on classes (saying they've already been
instrumented). We found that this was due to how the exec-war and
standalone-war goals work because they fork and start a new package phase (at
least from what I've read that's what they're doing), so it's getting executed
twice and the second time when it tries to instrument the classes it gets the
errors. I found this doesn't occur with the exec-war-only goal, so I updated
the StandaloneWarMojo class to not have the @Execute(phase =
LifeCyclePhase.PACKAGE) annotation on it and that appeared to resolve the
issue. Not sure if it would make more sense to add another goal such as
'standalone-war-only' and keep the existing standalone-war or not.
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