Click on the "HTMLEditor", and the ensemble program to be automatic exit
Terminal displays the following information:
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0xb27228a6, pid=20487, tid=3027061616
#
# JRE version: 7.0_04-b20
# Java VM: Java HotSpot(TM) Client VM (23.0-b21 mixed mode, sharing linux-x86 )
# Problematic frame:
# C [libWebPaneJava.so+0x7168a6] Java_com_sun_webpane_platform_WebPage_twkGetDocument+0x5bd4a6
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /home/java/jdk/javafx-samples-2.2.0-beta/hs_err_pid20487.log

The error log in the Attachment