cobertura-maven-plugin with Java 8

Question

Is it just me or the cobertura-maven-plugin doesn't work with java 8? when it runs I get

[INFO] --- cobertura-maven-plugin:2.6:instrument (default) @ provider-impl ---
[INFO] Cobertura 2.0.3 - GNU GPL License (NO WARRANTY) - See COPYRIGHT file
[cobertura] WARN  [main] net.sourceforge.cobertura.instrument.CoberturaInstrumenter - Unable to instrument file /var/lib/jenkins/workspace/BranchBuilder/implementations/provider-impl/target/generated-classes/cobertura/com/foo/impl/internal/ServiceProviderImpl$JoinRunner.class
java.lang.IllegalArgumentException
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at net.sourceforge.cobertura.instrument.CoberturaInstrumenter.instrumentClass(CoberturaInstrumenter.java:147)
at net.sourceforge.cobertura.instrument.CoberturaInstrumenter.instrumentClass(CoberturaInstrumenter.java:121)
at net.sourceforge.cobertura.instrument.CoberturaInstrumenter.addInstrumentationToSingleClass(CoberturaInstrumenter.java:234)
at net.sourceforge.cobertura.instrument.Main.addInstrumentationToSingleClass(Main.java:298)
at net.sourceforge.cobertura.instrument.Main.addInstrumentation(Main.java:307)
at net.sourceforge.cobertura.instrument.Main.parseArguments(Main.java:399)

I know there were issues with ASM and java 8 so I suspect the issue is that the maven-plugin has not been updated to use a java-8 compatible version of ASM

For reference, I asked the question here but got no answer

Has anyone managed to use cobertura-maven-plugin with java 8?

Proofread

Answer 1

It is an open issue to make it understand new classformat ,
https://github.com/mojohaus/cobertura-maven-plugin/issues/21

Corycorybant

ah, my query for "maven-cobertura-plugin java 8" didn't return that. I blame google ;) thank you – Proofread

This issue has been fixed now and is available in version 2.7 – Threadgill

Codehaus JIRA no longer exists. A similar github issue with some open references (streams and lambdas): github.com/mojohaus/cobertura-maven-plugin/issues/21 – Galba

Answer 2

I was able to get it working by manually updating the ASM dependency used by the cobetura-maven-plugin. Here is a link with more details: http://www.befreeman.com/2014/09/getting-cobertura-code-coverage-with.html

Hydrogenous

Actually, as you start using the more exotic features of Java 8 more often, this workaround seems to stop working, unfortunately. :( – Avila

@Avila Please see github.com/cobertura/cobertura/issues/166#issuecomment-64662005 for a possible solution. Brian F this answer might be incomplete, you need to update other dependencies, please see my github link – Proofread

Did not work for me when I used lambdas - is there a way to work around that as well? – Zischke

Answer 3

This also happens if you have a cobertura plugin in your <build> and <reporting> sections. Remove one and the problem will go away.

Snuggery