Duplicate class error when both axistools and clover plugin are included in maven project

[Gopal Krishna]

Hi,

We have a maven project which uses clover and axistools-wsdl2java plugin. Platfrom is windows.

We are using clover 2.4.0 plugin to get code coverage which integrated in project's pom.xml.

Configured the clover plugin as shown below.

<plugin> 
  <groupId>com.atlassian.maven.plugins</groupId> 
  <artifactId>maven-clover2-plugin</artifactId> 
  <version>2.4.0</version> 
  <configuration>
    <generatePdf>true</generatePdf> 
    <generateXml>true</generateXml> 
    <generateHtml>true</generateHtml> 
    <licenseLocation>C:/EcasSVNCO/ews/ews-mvn/ewsbase/src/test/resources/license/clover.license</licenseLocation> 
    <reportDescriptor>C:/EcasSVNCO/ews/ews-mvn/ewsbase/src/test/resources/descriptor/default-clover-report.xml</reportDescriptor> 
    <excludes> 
      <exclude>${basedir}/src/main/java/*.java</exclude> 
    </excludes> 
  </configuration> 
  <executions> 
    <execution> 
      <id>install</id> 
      <phase>install</phase> 
      <goals> 
        <goal>instrument</goal> 
        <goal>clover</goal> 
      </goals> 
    </execution> 
  </executions> 
</plugin>

Also, there is axistools plugin used to generate classes using wsdl file, which is configured as below.

<plugin>
  <groupId>org.codehaus.mojo</groupId>
  <artifactId>axistools-maven-plugin</artifactId>
  <version>1.4</version>
  <configuration>
    <sourceDirectory>${base.dir}/src/main/resources/wsdl</sourceDirectory>
    <outputDirectory>${base.dir}/src/main/java</outputDirectory>
    <wsdlFiles>
      <wsdlFiles>wsecas.wsdl</wsdlFiles>
    </wsdlFiles>
    <packageSpace>com.symantec.wsecas</packageSpace>
    <testCases>true</testCases>
    <serverSide>true</serverSide>
    <phase>install</phase>
    <subPackageByFileName>true</subPackageByFileName>
  </configuration>
  <executions>
    <execution>
      <goals>
        <goal>wsdl2java</goal>
      </goals>
    </execution>
  </executions>
</plugin>

When we execute a command 'mvn clean install' , compilation will go fine. Then first axistool's wsdl2java goal is ran and source files are generated in respective directory.

Next clover plugin tries to instrument the source code by running unit test cases, when this plugin places the instrumented source code under

{basedir}/target/clover/src/main/java/...

Then it fires "compile" goal to compile all the source code. While compiling the source code, two source paths are getting added i.e.

{basedir}/src/main/java/... and {basedir}/target/clover/src/main/java/... , both have same classes.

When maven compiler tries to compile these sources compilation is failing by throwing "Duplicate Class Error".

But when we comment out axistools plugin, clover instrumentation and report generation goes fine.

Thanks,

Gopal krishna

[Marek Parfianowicz]

Hello Gopal,

1) Why do you generate source files into src/main/java?:

<outputDirectory>${base.dir}/src/main/java</outputDirectory>

It is very uncommon to define builds in such way in Maven. Generated sources are usually put into 'target/generated-sources/xxx'.

2) If you cannot change the location of generated sources for some reason, please try to run whole source generation before Clover instrumentation starts. Something like:

mvn clean axistools-maven-plugin:wsdl2java clover2:setup test clover2:aggregate clover2:clover

Cheers
Marek