Java Gtk error

Reegz · 07-17-2006, 05:00 AM

Hi guys. I upgraded my distro from ubuntu 5.10 to 6.06 this weekend.

i'v now tried running a java swing app and am getting the following error

Code:

Exception in thread "main" java.awt.AWTError: Cannot load AWT toolkit: gnu.java.awt.peer.gtk.GtkToolkit
   at java.awt.Toolkit.getDefaultToolkit(libgcj.so.7)
   at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(libgcj.so.7)
   at java.awt.Window.<init>(libgcj.so.7)
   at java.awt.Frame.<init>(libgcj.so.7)
   at javax.swing.JFrame.<init>(libgcj.so.7)
   at Frame1.<init>(Frame1.java:9)
   at Frame1.main(Frame1.java:53)
Caused by: java.lang.ClassNotFoundException: gnu.java.awt.peer.gtk.GtkToolkit
   at java.lang.Class.forName(libgcj.so.7)
   at java.lang.Class.forName(libgcj.so.7)
   at java.awt.Toolkit.getDefaultToolkit(libgcj.so.7)

I'v checked for the lib it refers to

Code:

root@rac:/home/rac/tmp/SMSWizard# ll /usr/lib/libgcj.so.7.0.0 /usr/lib/libgcj.so.7
lrwxrwxrwx 1 root root       15 2006-07-14 23:39 /usr/lib/libgcj.so.7 -> libgcj.so.7.0.0
-rw-r--r-- 1 root root 21225540 2006-04-22 04:06 /usr/lib/libgcj.so.7.0.0

Any ideas on what the problem is here?

mrcheeks · 07-17-2006, 06:47 AM

Try install java from java.sun.com instead of using gcj(from gnu software fondation). There is also a ubuntu wiki for java. On slackware there is a j2sdk package available from repositories.

Reegz · 07-17-2006, 08:09 AM

Quote:

Originally Posted by mrcheeks

Try install java from java.sun.com instead of using gcj(from gnu software fondation). There is also a ubuntu wiki for java. On slackware there is a j2sdk package available from repositories.

Hi. Thanks for the reply. I am developing in java. Currently using jdk1.5. so I dont think this can be related.

Reegz · 07-17-2006, 08:40 AM

Please excuse my stupidity!!!

You were right. I was using the wrong java version. The java being used was

Code:

/usr/bin/java

which as you stated is the gij java. I have changed this to point to the correct version which i have installed in

Code:

/usr/local/java

Thanks again