I have exactly the same problem in Ubuntu 12.04 Beta 2 (Netbeans 7.0.1+dfsg1-4)
Starting Netbeans with the following command fixes the problem for me: $ netbeans --cp:a /usr/share/java/xercesImpl.jar
The corresponding bug at Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=653915
I have exactly the same problem in Ubuntu 12.04 Beta 2 (Netbeans 7.0.1+dfsg1-4)
Starting Netbeans with the following command fixes the problem for me: java/xercesImpl .jar
$ netbeans --cp:a /usr/share/
The corresponding bug at Debian: bugs.debian. org/cgi- bin/bugreport. cgi?bug= 653915
http://