Hello,
 
CentOS5 on a remote datacenter server, with no GUI like gnome/kde.
I started it using the same command on Ubuntu Feisty:  
 Quote:
   | java -Xmx256m -Djava.awt.headless=true -jar /root/phex/phex.jar | 
 
  And here's a little snippet. 
 Quote:
   | [root@blc ~]# java -Xmx256m -Djava.awt.headless=true -jar /root/phex/phex.jar 
 (.:3515): Gtk-WARNING **: cannot open display:
 
 [root@blc ~]# java --v
 gij: unrecognized option -- `--v'
 Try `gij --help' for more information.
 
 [root@blc ~]# gij --help
 Usage: gij [OPTION] ... CLASS [ARGS] ...
 to interpret Java bytecodes, or
 gij -jar [OPTION] ... JARFILE [ARGS] ...
 to execute a jar file
 
 --cp LIST         set class path
 --classpath LIST  set class path
 -DVAR=VAL         define property VAR with value VAL
 -?, --help        print this help, then exit
 -X                print help on supported -X options, then exit
 --ms=NUMBER       set initial heap size
 --mx=NUMBER       set maximum heap size
 --verbose[:class] print information about class loading
 --showversion     print version number, then keep going
 --version         print version number, then exit
 
 Options can be specified with `-' or `--'.
 
 See GCJ: The GNU Compiler for Java - GNU Project - Free Software Foundation (FSF) for information on reporting bugs
 [root@blc ~]#
 | 
 
  Please help.
Thank you.