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From: Folderol on 2 Apr 2008 19:25
I had this working fine on etch but trying to run it on lenny is a
nightmare. I get just a box then it freezes. If I call it from a
terminal window I get:

java.lang.ClassNotFoundException:
com.sun.java.swing.plaf.gtk.GTKLookAndFeel not found in
gnu.gcj.runtime.SystemClassLoader{urls=[file:lib/,file:lib/build/,file:lib/pde.jar,file:lib/antlr.jar,file:lib/oro.jar,file:lib/registry.jar,file:lib/mrj.jar,file:lib/RXTXcomm.jar],
parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}} at
java.net.URLClassLoader.findClass(libgcj.so.90)

I'm calling the program in *exactly* the same way as I did from etch
with an *identical* directory structure.

I've tried installing extra bits of java that I thought might be
relevant including all the following, but to no avail:

libgtk-java
libswt3.2-gtk-gcj
libskinlf-java
libswt-gtk-3.3-java
libgtk-java-dev
libswt-gtk-3.2-java


Any help greatly appreciated.

--
Will J G
From: Bruce Stephens on 2 Apr 2008 19:48
Folderol <folderol(a)ukfsn.org> writes:

> I had this working fine on etch but trying to run it on lenny is a
> nightmare. I get just a box then it freezes. If I call it from a
> terminal window I get:
>
> java.lang.ClassNotFoundException:
> com.sun.java.swing.plaf.gtk.GTKLookAndFeel not found in
> gnu.gcj.runtime.SystemClassLoader{urls=[file:lib/,file:lib/build/,file:lib/pde.jar,file:lib/antlr.jar,file:lib/oro.jar,file:lib/registry.jar,file:lib/mrj.jar,file:lib/RXTXcomm.jar],
> parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}} at
> java.net.URLClassLoader.findClass(libgcj.so.90)
>
> I'm calling the program in *exactly* the same way as I did from etch
> with an *identical* directory structure.

Probably you have gcj installed on lenny but not on etch. Things like
the executables "java", "javac", etc., are controlled by the debian
alternatives system. If you have gcj installed then by default
that'll be used for "java", "javac", and probably other things, even
if you have sun-java5-jre (or whatever) installed.

Probably just run "update-alternatives --config java". Or
galternatives. And select Sun's java.
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