build-findbugs.xml

<project>
  <property name="findbugs.output.format" value="html"/>
  <property name="findbugs.version" value="1.3.8"/>
  <property name="findbugs.output.dir" value="${build.dir}/findbugs-results"/>
  <property name="findbugs.home" value="${buildtools.dir}/findbugs-${findbugs.version}"/>

  <!-- Findbugs task definition -->
  <taskdef name="findbugs" classname="edu.umd.cs.findbugs.anttask.FindBugsTask" classpath="${findbugs.home}/lib/findbugs-ant.jar"/>

  <target name="_init-findbugs">
    <mkdir dir="${findbugs.output.dir}"/>
  </target>

  <target name="findbugs" depends="jars,_init-findbugs, _generate-findbugs-fileset" description="Run Findbugs on all modules">
    <!-- Collate all findbugs exclude filters -->
    <concat destfile="${findbugs.output.dir}/exclude-fragments.xml">
      <header>&lt;fragments&gt;</header>
      <footer>&lt;/fragments&gt;</footer>
      <fileset dir="${basedir}" includes="findbugs-filter-base.xml"/>
      <fileset refid="findbugs.filters"/>
    </concat>
    <xslt style="${buildtools.dir}/findbugs-collate.xsl" in="${findbugs.output.dir}/exclude-fragments.xml" out="${findbugs.output.dir}/exclude.xml">
      <outputproperty name="method" value="xml"/>
      <outputproperty name="indent" value="yes"/>
    </xslt>
    <findbugs home="${findbugs.home}" output="${findbugs.output.format}" outputFile="${findbugs.output.dir}/findbugs_errors.${findbugs.output.format}" excludeFilter="${findbugs.output.dir}/exclude.xml" jvmargs="-Xmx1024m">
      <fileset refid="findbugs.jars"/>
    </findbugs>
  </target>

  <target name="_generate-findbugs-fileset">
    <script language="javascript">
      <![CDATA[
        importClass(org.apache.tools.ant.types.Path);
        importClass(org.apache.tools.ant.types.FileSet);
        importClass(java.lang.System);
        importClass(java.io.File);
        var modules = project.getProperty("modules").split(",");
        var jars = new FileSet();
        var fragments = new FileSet();
        jars.setDir(new File(project.getProperty("jar.dir")));
        fragments.setDir(new File(project.getProperty("modules.dir")));
        for (var i = 0; i < modules.length; ++i) {
          jars.setIncludes(modules[i] + ".jar");
          fragments.setIncludes(modules[i] + "/findbugs-filter.xml");
        }
        project.addReference("findbugs.jars", jars);
        project.addReference("findbugs.filters", fragments);
        project.setProjectReference(jars);
        project.setProjectReference(fragments);
      ]]>
    </script>
  </target>
</project>