hi, I have problems with the rebuild of petshop, the classpath seems OK. I used the documentation: Deploying the Pet Store 1.1.1 Demo in JBoss until point 5. C:\Temp\apache\petstore\JPS10~1.1\src>build c:\j2sdkee1.2.1\lib\j2ee.jar; .\lib\ant\lib\ant.jar; .\lib\ant\lib\xml.jar; C:\jdk1.3.0_02\lib\tools.jar Buildfile: build.xml Detected Java Version: 1.3 Project base dir set to: C:\Temp\apache\petstore\jps1.0.1\src BUILD CONFIG ERROR: Configuration property "class" does not have a setMethod in class org.apache.tools.ant.taskdefs.Java org.apache.tools.ant.BuildException: Configuration property "class" does not have a setMethod in class org.apache.tools.ant.taskdefs.Java at org.apache.tools.ant.ProjectHelper.configureTask(ProjectHelper.java:288) at org.apache.tools.ant.ProjectHelper.configureTasks(ProjectHelper.java:226) at org.apache.tools.ant.ProjectHelper.configureTargets(ProjectHelper.java:193) at org.apache.tools.ant.ProjectHelper.configureProject(ProjectHelper.java:128) at org.apache.tools.ant.Main.runBuild(Main.java:209) at org.apache.tools.ant.Main.main(Main.java:173) Exception in thread "main" java.lang.NullPointerException at org.apache.tools.ant.Main.exit(Main.java:272) at org.apache.tools.ant.Main.runBuild(Main.java:214) at org.apache.tools.ant.Main.main(Main.java:173) Matthias _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user