Jacoco Agent in ANT how to use

Johannes Müller

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Nov 2, 2012, 11:08:30 AM11/2/12

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Hello list,

i am wondering if i use the agent right with my ANT script.

0. place before the "tests" start

1. declare taskdef.

<taskdef uri="antlib:org.jacoco.ant" resource="org/jacoco/ant/antlib.xml">
    <classpath path="path_to/jacocoant.jar"/>
</taskdef>

2. declare agent
2.1 place in the target name="test"

<jacoco:agent property="agentvmparam" destfile="dir_to_dest/jacoco.exec" includes="*" output="file" dumponexit="true" />

3. declare VM (thats the big question)

<property name="extraVMargs" value="${agentvmparam}"/>

4. generate report:
4.1. palace after the test

<jacoco:report>
                            <executiondata>
                                <file file="dir_to_dumped/jacoco.exec"/>
                            </executiondata>
                            <structure name="AS50">
                                <classfiles>
                                    <fileset dir="dir_to/plugins/">
                                    </fileset>
                                </classfiles>
                                <sourcefiles encoding="UTF-8">
                                    <fileset dir="dir_to_src/checkout_temp">
                                        <include name="*/plugins/*/src"/>
                                        <include name="*/*/plugins/*/src"/>
                                        <include name="*/*/*/plugins/*/src"/>
                                    </fileset>
                                </sourcefiles>
                            </structure>
                            <html destdir="dir_to_html}/jacoco"/>
</jacoco:report>

do i get this right?

Thanks and regards

Johannes

Marc Hoffmann

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Nov 2, 2012, 11:38:17 AM11/2/12

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Hi,

JaCoCo Ant tasks are well documented:

http://www.eclemma.org/jacoco/trunk/doc/ant.html

I recommend starting with the working Ant example provided JaCoCo
download:

http://www.eclemma.org/jacoco/trunk/doc/examples/build/build.xml

Redaring your point 3. Ant documentation shows how to declare JVM
arguments:

http://ant.apache.org/manual/Tasks/java.html

Best regards,
-marc

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Johannes Müller

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Nov 2, 2012, 12:33:43 PM11/2/12

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HI Marc,

thank you for your reply. Since i do not use java, junit, testng i can
not use the coverage task, or can i? I tought i use the agent and
there is no example how to use it. Where do i put the agent? Can i put
it everywhere in my ANT Script? Or does it need a special place to be?

I ask because i get this:

java.lang.IncompatibleClassChangeError: class
org.jacoco.core.internal.flow.ClassProbesVisitor has interface
org.objectweb.asm.ClassVisitor as super class

Can you interpret whats happening?

Thanks and regards

Johannes

2012/11/2 Marc Hoffmann <hoff...@mountainminds.com>

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Marc R. Hoffmann

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Nov 2, 2012, 12:37:15 PM11/2/12

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Hi Johannes,

this means there is another ASM version which conflicts with JaCoCo
(which ship with ASM 4.0). At what step do you get this error? While
report generation?

Best regards,
-marc

Johannes Müller

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Nov 5, 2012, 5:29:52 AM11/5/12

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HI Marc,

thank you for your answer. You are absolutely right:

[java] [echo] running uc tests

[java] cleanup:
[java] run:
[java] [jacoco:report] Loading execution data file
E:\builds\as50_middletier_junit_tests_vikaead_test2\report\middeltier\jacoco.exec
[java] BUILD FAILED
[java] java.lang.IncompatibleClassChangeError: class

org.jacoco.core.internal.flow.ClassProbesVisitor has interface
org.objectweb.asm.ClassVisitor as super class

how to solve this problem? I have tried many agend locations and
settings but nothing seems to work.

Thanks and regards,

Johannes

2012/11/2 Marc R. Hoffmann <hoff...@mountainminds.com>:

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Marc Hoffmann

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Nov 5, 2012, 5:55:22 AM11/5/12

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Hm, what is the Ant version you're using? How are you executiong your
scripts?

From my understanding Ant should give every task definition a separate
class loader. Probably in your setup there is another ASM version due to
some global classpath definition or optional libraries.

Anyways I will open a issue to rename the ASM classes within our
all-in-one jacocoant.jar library to avoid such clashes in future.

Cheers,
-marc

Johannes Müller

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Nov 5, 2012, 6:24:06 AM11/5/12

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My version is ant-1.8.1. I execute them from a Jenkins server. I
looked it up an i got in my scripts two taskdef declarations of the
"org/jacoco/ant/antlib.xml". In about two hours i can tell you if it
worked ;) this is the time a build needs to be executed and tested.

Thanks and regards

Johannes

2012/11/5 Marc Hoffmann <hoff...@mountainminds.com>:

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Johannes Müller

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Nov 5, 2012, 8:43:14 AM11/5/12

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So the test is done:

[java] [echo] running uc tests

[java] [jacoco:report] Loading execution data file E:\builds\xxxx\jacoco.exec
[java] [java] BUILD FAILED

[java] java.lang.IncompatibleClassChangeError: class
org.jacoco.core.internal.flow.ClassProbesVisitor has interface
org.objectweb.asm.ClassVisitor as super class

[java] at java.lang.ClassLoader.defineClass1(Native Method)
[java] at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
[java] at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
[java] at org.apache.tools.ant.AntClassLoader.defineClassFromData(AntClassLoader.java:1146)
[java] at org.apache.tools.ant.AntClassLoader.getClassFromStream(AntClassLoader.java:1324)
[java] at org.apache.tools.ant.AntClassLoader.findClassInComponents(AntClassLoader.java:1388)
[java] at org.apache.tools.ant.AntClassLoader.findClass(AntClassLoader.java:1341)
[java] at org.apache.tools.ant.AntClassLoader.loadClass(AntClassLoader.java:1088)
[java] at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
[java] at org.jacoco.ant.ReportTask.createBundle(ReportTask.java:472)
[java] at org.jacoco.ant.ReportTask.createReport(ReportTask.java:454)
[java] at org.jacoco.ant.ReportTask.execute(ReportTask.java:402)
[java] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
[java] at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
[java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[java] at java.lang.reflect.Method.invoke(Method.java:597)
[java] at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
[java] at org.apache.tools.ant.Task.perform(Task.java:348)
[java] at org.apache.tools.ant.Target.execute(Target.java:357)
[java] at org.apache.tools.ant.Target.performTasks(Target.java:385)
[java] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
[java] at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
[java] at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
[java] at org.eclipse.ant.internal.core.ant.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
[java] at org.apache.tools.ant.Project.executeTargets(Project.java:1189)
[java] at org.eclipse.ant.internal.core.ant.InternalAntRunner.run(InternalAntRunner.java:662)
[java] at org.eclipse.ant.internal.core.ant.InternalAntRunner.run(InternalAntRunner.java:534)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[java] at java.lang.reflect.Method.invoke(Method.java:597)
[java] at org.eclipse.ant.core.AntRunner.run(AntRunner.java:513)
[java] at org.eclipse.ant.core.AntRunner.start(AntRunner.java:600)
[java] at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
[java] at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
[java] at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
[java] at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
[java] at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[java] at java.lang.reflect.Method.invoke(Method.java:597)
[java] at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
[java] at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
[java] at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
[java] at org.eclipse.equinox.launcher.Main.main(Main.java:1383)
[java] at org.eclipse.core.launcher.Main.main(Main.java:34)

Same error i guess are there some quick fixes for that or do i need to
wait for the update?

Thanks and regards,

Johannes

2012/11/5 Johannes Müller <johannes....@gmail.com>:

Johannes Müller

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Nov 5, 2012, 10:01:43 AM11/5/12

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If it helps jacoco just created a jacoco.exec with one complete plugin
test in it...

2012/11/5 Johannes Müller <johannes....@gmail.com>:

Marc Hoffmann

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Nov 5, 2012, 2:08:48 PM11/5/12

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The agent and coverage task has no dependency on ASM, that's why the
exec file can be created.

Here are some options I see for you:

1) Figure out why AMS 3.x is on the Ant classpath in your case. With
typical Ant setups JaCoCo 0.6.0 runs fine.
2) Go back to a JaCoCo 0.5.10 which is based on ASM 3.x
3) Wait until we have re-packaged jacocoant.jar

Best regards,
-marc

Johannes Müller

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Nov 6, 2012, 7:37:26 AM11/6/12

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HI Marc,

point 2. worked just fine thanks!

regards Johannes

2012/11/5 Marc Hoffmann <hoff...@mountainminds.com>:

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