Hi,
I have a problem calling ant from my own application. As lonag as I just call the standard ant task, there is no problem. But if I want to use some external tasks, like jaxb etc. ant craches while execution. The entire application is packed into one single jar file. This jar-file contains the necessary libs. If a check the properties of the ant project in my code, I see that "java.class.path" is set to myApplication.jar. If tried to change this properties, but it did'nt change anything! Here is my code: Project ant = new Project(); ProjectHelper helper = new ProjectHelperImpl(); ant.init(); helper.parse(ant, new File("build.xml")); ant.executeTarget("generate-hybrid-config"); <?xml version="1.0"?> <project name="BUILD HERBIE 4 INSTALL" default="prepare" basedir="."> <property name="ant.lib" value="${basedir}/lib/ant" /> <property name="app.lib" value="${basedir}/lib" /> <property name="hybrid.lib" value="${basedir}/lib-hybrid" /> <path id="project.lib"> <fileset dir="${app.lib}" > <include name="**/*.jar" /> <exclude name="ant/**/*" /> </fileset> <fileset dir="${hybrid.lib}"> <include name="**/*.jar" /> </fileset> </path> <path id="ant.lib.path"> <fileset dir="${ant.lib}"> <include name="**/*.jar" /> </fileset> <fileset dir="${app.lib}"> <include name="**/*.jar" /> </fileset> <fileset dir="${hybrid.lib}"> <include name="**/*.jar" /> </fileset> </path> <taskdef name="xjc" classname="com.sun.tools.xjc.XJCTask" classpathref="ant.lib.path" /> <property name="build" value="${basedir}/build-ant"/> <property name="jaxb.xsd" value="${basedir}/web/WEB-INF/herbie-config.xsd" /> <property name="build.jaxb" value="${build}/jaxb" /> <property name="hybrid.xsd" value="${basedir}/answer/web/WEB-INF/semantic-config.xsd" /> <property name="build.hybrid.jaxb" value="${build}/jaxb-hybird" /> <target name="clean"> <delete dir="${build}" /> </target> <target name="generate" description="Generate valueobject-classes with JAXB"> <xjc target="${build.jaxb}" schema="${jaxb.xsd}" removeoldoutput="yes"> <produces dir="${build.jaxb}" /> </xjc> </target> <target name="generate-hybrid-config" description="Generate valueobject-classes with JAXB"> <xjc target="${build.hybrid.jaxb}" schema="${hybrid.xsd}" removeoldoutput="yes"> <produces dir="${build.hybrid.jaxb}" /> </xjc> </target> </project> Thank you Klaus