Not getting Jacoco Report, even after test cases run fine

[Bangar Milind]

Hello,

I am having strange issue with Jacoco (0.6.5.*).

My current environment is :

JDK : 1.6

Eclipse : Juno

Its a Maven project, which uses Aspects (part of separate JAR) file used as dependency within parent POM.

Attaching the output which I am getting after running the coverage.

There are only 3 Unit Tests against which I am running Jacoco, but not sure where the problem is.

Is it something to do with use of AspectJ??? 

The test cases run absolutle fine, with jacoco.exec getting generated, except that it does not have coverage data in it.... Would be clear from the attachments.

Any help please!!!!

Milind

 

[Bangar Milind]

I read in forum that reports are normally not generated if classes under coverage are not the same the ones at runtime. How do we ensure the same.

In my POM, class files in question are same. Is there a way to find out the classes generated (I tried classdumpDir, but not getting any classes created). through instrumentation etc.

[Marc R. Hoffmann]

Hi,

if you use AspectJ with runtime weaving this will modify the classes
seen by the JaCoCo agent and will not allow to create proper reports.

There are some options to overcome this limitation:

1) Make sure the JaCoCo agent is the first agent on the command line if
you use multiple agents.
2) Don't use load-time weaving, use compile-time weaving instead.
3) Use JaCoCo offline instrumentation (not recommended)

Best regards,
-marc

[Bangar Milind]

Hi Marc,

Thanks for the response. The Aspects are in a separate JAR, wherein we do not have control.

Milind

On Wednesday, 12 March 2014 16:37:56 UTC, Bangar Milind wrote:

[Bangar Milind]

A silly  question.. 

Jacoco has components like report/core/build/agent and we always configure agent to run for code coverage, which is fine. But for reports there is a separate JAR within org.jacoco.report folder. So, is it like this is also triggered based on goal mentioned in POM?

Milind

[Bangar Milind]

[Henrik Horneber]

It should not make a difference whether  your aspects are in a different jar or not.

The point Marc is making: when do those aspects get woven into your classes?

During compile time or during runtime (load time).

For use with jacoco you should use compile time. Make sure they get woven only once, and not one time for testing/coverage generation, and one time for report generation.

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[Bangar Milind]

Hi, thanks for the help.

This time as suggested, classes were compiled and then Jacoco was run through command line.

I am getting the following message "Analyzed bundle 'gw-location-stub' with 0 classes".

What does it signify?

Thanks

Milind

[Milind Bangar]

http://stackoverflow.com/questions/17882298/compile-time-weaving-for-di-in-non-spring-managed-classes
http://stackoverflow.com/questions/8718245/how-to-enable-aspectj-compile-time-weaving-with-java-7-and-maven

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[Bangar Milind]

Hello All,

Problem resolved an reports are coming fine now.

Thanks

Milind

http://stackoverflow.com/questions/17882298/compile-time-weaving-for-di-in-non-spring-managed-classes
http://stackoverflow.com/questions/8718245/how-to-enable-aspectj-compile-time-weaving-with-java-7-and-maven

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[Henrik Horneber]

Hi,

Out of curiosity, what did you change to make it work? Did you switch on compile-time weaving or was more work necessary?

regards,
Henrik

[Milind Bangar]

Hi Marc,

Sorry for late reply . Yes, by changing aspects to compile time weaving did the trick.

Regards
Milind

Sent from my iPad

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