Hi. To avoid this problem, you can edit the run script (run.bat or run.sh), setting the option mentioned above at the line where the org.jboss.Main class is executed, so the original line: "%JAVA%" %JAVA_OPTS% "-Djava.endorsed.dirs=%JBOSS_ENDORSED_DIRS%" -classpath "%JBOSS_CLASSPATH%" org.jboss.Main %* would be modified like this: "%JAVA%" %JAVA_OPTS% "-Djava.endorsed.dirs=%JBOSS_ENDORSED_DIRS%" -classpath "%JBOSS_CLASSPATH%" -Dsun.lang.ClassLoader.allowArraySyntax=true org.jboss.Main %* View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4119236#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...