Downloaded the latest available version of Sun JDK 1.6 (Java SE 6 Update 10 Beta). A clean installation of JBoss CR1 with this version boots without any errors. | 20:21:57,171 INFO [CopyMechanism] VFS temp dir: D:\jboss-5.0.0.CR1\server\jaikiran\tmp | 20:21:57,171 INFO [ZipEntryContext] VFS force nested jars copy-mode is enabled. | 20:22:01,577 INFO [ServerInfo] Java version: 1.6.0_10-beta,Sun Microsystems Inc. | 20:22:01,577 INFO [ServerInfo] Java VM: Java HotSpot(TM) Server VM 11.0-b12,Sun Microsystems Inc. | 20:22:01,577 INFO [ServerInfo] OS-System: Windows 2003 5.2,x86 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4161817#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...