seam.bat java.lang.ClassNotFoundException: org.apache.tools.ant.launch.Launcher on Windows ------------------------------------------------------------------------------------------ Key: JBSEAM-5116 URL: https://issues.jboss.org/browse/JBSEAM-5116 Project: Seam 2 Issue Type: Bug Components: Platform interoperability Affects Versions: 2.3.1.CR1 Environment: Windows 2008 Reporter: Marek Schmidt Assignee: Marek Novotny Priority: Critical Fix For: 2.3.2.CR1 seam-gen fails on windows with seam.bat setup SEAM_HOME: W:\tmp\maschmid\jboss-wfk-2.3.0.ER1\jboss-seam-2.3.1.Final-redhat-2 Using seam-gen sources from: W:\tmp\maschmid\jboss-wfk-2.3.0.ER1\jboss-seam-2.3.1.Final-redhat-2\seam-gen java.lang.NoClassDefFoundError: org/apache/tools/ant/launch/Launcher Caused by: java.lang.ClassNotFoundException: org.apache.tools.ant.launch.Launcher at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) Could not find the main class: org.apache.tools.ant.launch.Launcher. Program will exit. Exception in thread "main" The problem is likely that the seam-gen library move was not updated in the seam.bat