<container qualifier="tomcat" default="true">
        <configuration>
        ...
            <property name="javaVmArguments">-Xms512m -Xmx512m -XX:MaxPermSize=512m -Dorg.jboss.resolver.warning=true
            -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Dfile.encoding=UTF-8
            -Djavax.servlet.request.encoding=UTF-8 </property>
        ...
        </configuration>
    </container>

Exception in thread "main" java.lang.NoClassDefFoundError: 
Caused by: java.lang.ClassNotFoundException: 
        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: .  Program will exit.