junit version issues

[Jens Dietrich]

Hi, 

When running evosuite-generated tests from an ant script, tests fail with a verification error. This looks like a linkage - related problem. Please see below for the relevant part of the stacktrace. 

I think that this is a DELL-hell style problem caused by different versions of junit - the ant junit task is compiled against 4.12 (that has the wrapIfNotThreadSafe method), but the evosuite jar seems to have an older versions backed into it. My question is whether there is a particular reason for this, which version it is, and whether it could be safely removed and replaced by an external junit 4.12 dependency. 

Cheers, Jens

exercise.xml:307: java.lang.VerifyError: (class: org/junit/runner/notification/RunNotifier, method: wrapIfNotThreadSafe signature: (Lorg/junit/runner/notification/RunListener;)Lorg/junit/runner/notification/RunListener;) Wrong return type in function

at org.apache.tools.ant.taskdefs.optional.junit.CustomJUnit4TestAdapterCache.getNotifier(CustomJUnit4TestAdapterCache.java:56)

at org.apache.tools.ant.taskdefs.optional.junit.CustomJUnit4TestAdapterCache.getNotifier(CustomJUnit4TestAdapterCache.java:49)

at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:38)

at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:535)

at org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.executeInVM(JUnitTask.java:1647)

at org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.execute(JUnitTask.java:1047)

at org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.executeOrQueue(JUnitTask.java:2207)

at org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.execute(JUnitTask.java:858)

at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)

[Gordon Fraser]

Hi Jens,

The evosuite-standalone-runtime.jar file contains no JUnit, you should probably use that to execute your tests and add your own JUnit version on the classpath.

I don't know what exactly is causing your problem. Dealing with Ant and it's classloaders has always been difficult.

Best wishes,

Gordon

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[Devendra Reddy]

Can you tell me how u used evosuite with ANT for generating the test cases