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Gtk-WARNING **: cannot open dislplay: -> error Gtk-WARNING **: cannot open dislplay: -> error
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  #1 (permalink)  
Old November 23rd, 2007
Apprentice
  
Join Date: November 21st, 2007
Posts: 6
Cage is flying high
Question Gtk-WARNING **: cannot open dislplay: -> error
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.
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  #2 (permalink)  
Old November 24th, 2007
Phex Developer
  
Join Date: May 8th, 2001
Location: Stuttgart, Germany
Posts: 988
GregorK is flying high
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I don't think Phex will run on GCJ. GCJ is not fully supporting Java 1.5 yet, I think.
I recommend you try to use Sun Java.
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  #3 (permalink)  
Old November 24th, 2007
Apprentice
  
Join Date: November 21st, 2007
Posts: 6
Cage is flying high
Default
Quote:
Originally Posted by GregorK View Post
I don't think Phex will run on GCJ. GCJ is not fully supporting Java 1.5 yet, I think.
I recommend you try to use Sun Java.
Hi, initially I had tried to do so, and didn't work.
So I resorted to yum install java.

If you could be so kind to help me remove all these 'offending' javas and show me how I can install sun java, I'd be very grateful.

Thank you.
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  #4 (permalink)  
Old November 24th, 2007
Phex Developer
  
Join Date: May 8th, 2001
Location: Stuttgart, Germany
Posts: 988
GregorK is flying high
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Try this:
man update-java-alternatives

or this:

How to install a specific version of Java on Ubuntu « The Wayward Word Press
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Old November 24th, 2007
Apprentice
  
Join Date: November 21st, 2007
Posts: 6
Cage is flying high
Default
Quote:
Originally Posted by GregorK View Post
Hi,

I'm on CentOS5.

Quote:
[root@blc ~]# man update-java-alternatives
No manual entry for update-java-alternatives
[root@blc ~]#
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  #6 (permalink)  
Old November 25th, 2007
Phex Developer
  
Join Date: May 8th, 2001
Location: Stuttgart, Germany
Posts: 988
GregorK is flying high
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Thought I have read Ubuntu somewhere...
But why dont you try google?? It brings you a huge bunch of CentOS5 and Java related pages... like:
HowTos/JavaOnCentOS - CentOS Wiki
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Old November 25th, 2007
Apprentice
  
Join Date: November 21st, 2007
Posts: 6
Cage is flying high
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To be honest, I tried 'em all. I'm a googler more than a forumer, lol.
And nothing seems to be working.
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  #8 (permalink)  
Old November 28th, 2007
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Join Date: May 31st, 2002
Location: Heidelberg, Germany
Posts: 1,881
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Do you have an X-Server installed on the server?

Some Java classes still need the presence of an X-Server, even though they don't use it.
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