sonar ant task or hudson intergration for coverage report - ant

Question

Good morning, i've got a question about cobertura report integration in sonar.
I've tried two way: from hudson and from ant task.
if i used hudson to configure a sonar integration, the cobertura report is well integrated to my sonar dashboard but i've got some warning like
Java bytecode scan...
[WARN] Class 'javax/mail/Folder' is not accessible through the ClassLoader.
[WARN] Class 'javax/mail/Folder' is not accessible through the ClassLoader.
[WARN] Class 'javax/mail/Folder' is not accessible through the ClassLoader.
[WARN] Class 'javax/mail/Folder' is not accessible through the ClassLoader.
[WARN] Class 'com/sun/mail/imap/IMAPFolder' is not accessible through the ClassLoader.
But, my cobertura report is well integrated:
[INFO] Sensor CoberturaSensor...
[INFO] parsing C:\hudson\jobs\Client Mail\workspace\cobertura\reports\coverage.xml
[INFO] Sensor CoberturaSensor done: 1218 ms
So, i decide to use ant task so i can manage my librairies, this is my ant task:
<target name="sonar" depends="cover-report">
<!-- The workDir directory is used by Sonar to store temporary files -->
<sonar:sonar workDir="./" key="fr.simscorps:client.mail" version="0.1-SNAPSHOT" xmlns:sonar="antlib:org.sonar.ant">
<property key="sonar.host.url" value="http://172.30.3.55:1234/sonar/" />
<!-- source directories (required) -->
<sources>
<path location="./src" />
</sources>
<!-- list of properties (optional) -->
<property key="sonar.dynamicAnalysis" value="reuseReports" />
<property key="sonar.projectName" value="client mail" />
<property key="sonar.java.source" value="1.5" />
<property key="sonar.projectVersion" value="0.1-SNAPSHOT" />
<property key="sonar.phase" value="generate-sources"/>
<property key="sonar.cobertura.reportsPath" value="${reports.xml.dir}/coverage.xml"/>
<property key="sonar.surefire.reportsPath" value="${reports.xml.dir}/TESTS-test.TestSuiteClientMail.xml" />
<!-- test source directories (optional) -->
<tests>
<path location="./test" />
</tests>
<!-- binaries directories, which contain for example the compiled Java bytecode (optional) -->
<binaries>
<path location="./bin" />
</binaries>
<!-- path to libraries (optional). These libraries are for example used by the Java Findbugs plugin -->
<libraries>
<path location="./lib/activation.jar" />
<path location="./lib/deltasync.jar" />
<path location="./lib/jaybird_full_2_1_6.jar" />
<path location="./lib/junit.jar" />
<path location="./lib/mail.jar" />
<path location="./lib/libdeltasync/apache-mime4j-0.5.jar"/>
<path location="./lib/libdeltasync/commons-codec-1.5.jar"/>
<path location="./lib/libdeltasync/commons-codec-1.5-javadoc.jar"/>
<path location="./lib/libdeltasync/commons-codec-1.5-sources.jar"/>
<path location="./lib/libdeltasync/commons-logging-1.1.1.jar"/>
<path location="./lib/libdeltasync/httpclient-4.1.1.jar"/>
<path location="./lib/libdeltasync/httpclient-cache-4.1.1.jar"/>
<path location="./lib/libdeltasync/httpcore-4.1.jar"/>
<path location="./lib/libdeltasync/httpmime-4.1.1.jar"/>
<path location="./lib/libdeltasync/logback-classic-0.9.29.jar"/>
<path location="./lib/libdeltasync/logback-classic-0.9.29-sources.jar"/>
<path location="./lib/libdeltasync/logback-core-0.9.29.jar"/>
<path location="./lib/libdeltasync/logback-core-0.9.29-sources.jar"/>
<path location="./lib/libdeltasync/slf4j-api-1.6.1.jar"/>
<path location="./lib/libdeltasync/slf4j-api-1.6.1-sources.jar"/>
</libraries>
</sonar:sonar>
</target>
My report is well generated (about 700ko) and in hudson's log i see the cobertura sensor, but it's like he didn't do anything:
[sonar:sonar] [INFO] Sensor CoberturaSensor...
[sonar:sonar] [INFO] Sensor CoberturaSensor done: 0 ms
Here, my other ant task dependency:
<property name="junit.output.dir" value="junit"/>
<property name="instrumented.dir" value="cobertura/instrumented"/>
<property name="classes.dir" value="bin"/>
<property name="jars.dir" value="lib"/>
<property name="test.dir" value="test"/>
<property name="cobertura.dir" value="${jars.dir}/cobertura"/>
<property name="reports.xml.dir" value="cobertura/reports"/>
<property name="cob.ser.file" value="cobertura.ser" />
<!-- Define the Sonar task if this hasn't been done in a common script -->
<taskdef uri="antlib:org.sonar.ant" resource="org/sonar/ant/antlib.xml">
<classpath path="C:\hudson\tools\my_ant\lib" />
</taskdef>
<path id="cobertura.classpath">
<fileset dir="${cobertura.dir}">
<include name="cobertura.jar" />
<include name="lib/**/*.jar" />
</fileset>
<fileset dir="${jars.dir}">
<include name="**/*.jar"/>
</fileset>
</path>
<taskdef classpathref="cobertura.classpath" resource="tasks.properties" />
<target name="clean" >
<delete dir="${instrumented.dir}" />
<delete dir="${reports.xml.dir}" />
<delete file="${cob.ser.file}" />
</target>
<target name="prepare" depends="clean">
<mkdir dir="${instrumented.dir}" />
<mkdir dir="${reports.xml.dir}" />
</target>
<target name="instrument" depends="prepare">
<cobertura-instrument todir="${instrumented.dir}">
<ignore regex="org.apache.log4j.*" />
<fileset dir="${classes.dir}">
<include name="**/*.class" />
<exclude name="**/*Test.class" />
</fileset>
</cobertura-instrument>
</target>
<target name="testsuite" depends="instrument">
<junit fork="yes" dir="${test.dir}" failureProperty="test.failed" printsummary="withOutAndErr">
<!--
Specify the name of the coverage data file to use.
The value specified below is the default.
-->
<sysproperty key="net.sourceforge.cobertura.datafile"
file="${basedir}/cobertura.ser" />
<!--
Note the classpath order: instrumented classes are before the
original (uninstrumented) classes. This is important.
-->
<classpath location="${instrumented.dir}" />
<classpath location="${classes.dir}" />
<!--
The instrumented classes reference classes used by the
Cobertura runtime, so Cobertura and its dependencies
must be on your classpath.
-->
<classpath refid="cobertura.classpath" />
<formatter type="xml" />
<test name="test.TestSuiteClientMail" todir="${reports.xml.dir}" />
<!--<batchtest todir="${reports.xml.dir}" unless="testcase">
<fileset dir="${test.dir}">
<include name="**/*Test*.java" />
</fileset>
</batchtest>-->
</junit>
</target>
<target name="cover-report" depends="testsuite">
<cobertura-report format="xml" destdir="${reports.xml.dir}" srcdir="${test.dir}" />
</target>
Does anyone have an idea?

Answer 1

[ANSWER]
Ok, my fault, the problem is in syntax i used: it's
<property key="sonar.cobertura.reportPath" value="${reports.xml.dir}/coverage.xml"/>
and not
<property key="sonar.cobertura.reportsPath" value="${reports.xml.dir}/coverage.xml"/> as we can see here sorry

Answer 2

As for the Class Loader errors you are getting, I got rid of mine by making sure the paths in my binaries & libraries property are made from the root of my project.
<property name="sonar.libraries" value="./Module/resources/web/WEB-INF/lib" />
rather than
<property name="sonar.libraries" value="resources/web/WEB-INF/lib" />
Which gives the class loader error. Hope this helps someone. Took my a few days to figure it out!