Could not find or load main class

[Ashley Simon]

Hi ,

I am doing code coverage using JaCoCo with Ant Tasks.

I am able to get the jacoco.exec and the reports.
But the reports are showing 0% code coverage and there is an error as well .

The error is "Could not find or load main class *"

The test part of build.xml is as follows :

     <target name="test">

<!-- Step 2: Wrap test execution with the JaCoCo coverage task -->

<jacoco:coverage destfile="${result.exec.file}">

<java classname="*" fork="true">

<classpath>

<pathelement location="${result.classes.dir}"/>

                                </classpath>

</java>

</jacoco:coverage>

<!-- Step 2: Wrap test execution with the JaCoCo coverage task -->

<jacoco:coverage>

<junit fork="true" forkmode="once">

<test name="CodeTest" filtertrace="true"/>

<classpath path="${result.classes.dir}"/>

</junit>

</jacoco:coverage>

</target>

I have to do coverage for more than one file which is located under ${result.classes.dir} .

The code is written using JavaScript.

Thanks ,

Ashley Simon

[Marc R. Hoffmann]

Hi,

I don't think "*" is a valid class name to launch a Java program.

I recommend to make your build running without JaCoCo first.

Also I wonder what you mean with "JavaScript". JaCoCo is a coverage tool for compiled languages (like Java) for the JVM. I don't think JaCoCo works with JavasScript.

Regards,
-marc

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[Ashley Simon]

 Thanks a lot for the help,

Ashli

[Ashley Simon]

Hi,

Yes, the code is written in java.My mistake !

Is there any way to have check the whole folder ?
Here, I guess the class name can take a particular class , so when giving * or the whole folder name ,It is giving error.

I tried with module..but it says <java> does not support nested module.

And there are no jar files , so I cant give any jar attribute.

Currently I wrote a code that commented the whole <java> part and gave the path for the class files in <junit> itself. So, is it necessary to give that part ?

Can you also say whether the <target name=test> is included in our build.xml for executing the test-cases in our project ?

The newly written code :

<target name="test">

  <jacoco:coverage>

<junit fork="true" forkmode="once">

   <test name="CodeTest" filtertrace="true"/>

<classpath path="${result.classes.dir}">

       <batchtest fork="yes" todir="${result.exec.file}">

<fileset dir="${result.classes.dir}">

<include name="**/*Test*.class"/>

</fileset>

    </batchtest>

               </classpath>

 </junit>

   </jacoco:coverage>

 </target>

[Marc R. Hoffmann]

Hi Ashley,

probably you should first get an idea how Ant builds work before you start adding code coverage to it.

Please understand that we cannot provide support for Ant itself. As a starting point you might work through the tutorials in their manuals:

http://ant.apache.org/manual/index.html

Regards,
-marc

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[Ashley Simon]

Thanks,

Ashley ^_^