java.lang.NoClass DefFoundError: while resolving class

[mark vinthund]

hello,

I downloaded a java game (http://freecol.sourceforge.net) and when I try to run it according to suggestions from game makers:

java -jar FreeCol.jar

i get following response:

[marek@host freecol]$ java -jar FreeCol.jar
libgcj-java-placeholder.sh
 
This script is a placeholder for the /usr/bin/java
master link required by jpackage.org conventions.  libgcj's
rmiregistry, rmic and jar tools are now slave symlinks to these
masters, and are managed by the alternatives(8) system.
 
This change was necessary because the rmiregistry, rmic and jar tools
installed by previous versions of libgcj conflicted with symlinks
installed by jpackage.org JVM packages.
Exception during event dispatch:
java.lang.NoClassDefFoundError: while resolving class: net.sf.freecol.client.gui.plaf.FreeColLookAndFeel
   at java.lang.VMClassLoader.resolveClass(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.Class.initializeClass() (/usr/lib/libgcj.so.5.0.0)
   at net.sf.freecol.FreeCol$2.run() (Unknown Source)
   at java.awt.event.InvocationEvent.dispatch() (/usr/lib/libgcj.so.5.0.0)
   at java.awt.EventQueue.dispatchEvent(java.awt.AWTEvent) (/usr/lib/libgcj.so.5.0.0)
   at java.awt.EventDispatchThread.run() (/usr/lib/libgcj.so.5.0.0)
   at _Jv_ThreadRun(java.lang.Thread) (/usr/lib/libgcj.so.5.0.0)
   at GC_start_routine (/usr/lib/libgcj.so.5.0.0)
   at __clone (/lib/tls/libc-2.3.3.so)
Caused by: java.lang.ClassNotFoundException: javax.swing.plaf.metal.DefaultMetalTheme not found in [file:FreeCol.jar, core:/]
   at java.net.URLClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
   at gnu.gcj.runtime.VMClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.ClassLoader.loadClass(java.lang.String, boolean) (/usr/lib/libgcj.so.5.0.0)
   at _Jv_FindClass(_Jv_Utf8Const, java.lang.ClassLoader) (/usr/lib/libgcj.so.5.0.0)
   at _Jv_ClassReader.handleClassBegin(int, int, int) (/usr/lib/libgcj.so.5.0.0)   at _Jv_ClassReader.parse() (/usr/lib/libgcj.so.5.0.0)
   at _Jv_DefineClass(java.lang.Class, byte[], int, int) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.VMClassLoader.defineClass(java.lang.ClassLoader, java.lang.String, byte[], int, int, java.security.ProtectionDomain) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.ClassLoader.defineClass(java.lang.String, byte[], int, int, java.security.ProtectionDomain) (/usr/lib/libgcj.so.5.0.0)
   at java.security.SecureClassLoader.defineClass(java.lang.String, byte[], int, int, java.security.CodeSource) (/usr/lib/libgcj.so.5.0.0)
   at java.net.URLClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
   at gnu.gcj.runtime.VMClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.ClassLoader.loadClass(java.lang.String, boolean) (/usr/lib/libgcj.so.5.0.0)
   at _Jv_FindClass(_Jv_Utf8Const, java.lang.ClassLoader) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (/usr/lib/libgcj.so.5.0.0)
   at _Jv_BytecodeVerifier.verify_instructions_0() (/usr/lib/libgcj.so.5.0.0)
   at _Jv_VerifyMethod(_Jv_InterpMethod) (/usr/lib/libgcj.so.5.0.0)
   at _Jv_PrepareClass(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
   at _Jv_WaitForState(java.lang.Class, int) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.VMClassLoader.linkClass0(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
   at java.lang.VMClassLoader.resolveClass(java.lang.Class) (/usr/lib/libgcj.so.5.0.0)
   ...8 more
Exception in thread "main" java.lang.UnsupportedOperationException
   at gnu.java.awt.peer.gtk.GdkGraphicsEnvironment.getDefaultScreenDevice() (/usr/lib/lib-gnu-java-awt-peer-gtk.so.5.0.0)
   at net.sf.freecol.client.gui.ImageLibrary.init(boolean) (Unknown Source)
   at net.sf.freecol.client.gui.ImageLibrary.ImageLibrary(java.lang.String) (Unknown Source)
   at net.sf.freecol.FreeCol.main(java.lang.String[]) (Unknown Source)  

What can I do about it? My system is Fedora Core 3 and I have not even basic knowledge of java.

mark

[Layne Lund]

I have not had any success with using gcj that comes installed with most Linux distributions (at least it is installed with Red Hat 8 on my machine). Personally, I would recommend that you download Sun's implementation from java.sun.com. You will need to modify your .bashrc (for bash) or similar file (for other shells) to add the directory for your Java installation to the PATH system variable. If you need help doing this, please come back with more questions.

Good luck!

Layne

[mark vinthund]

hello,

thanks for the hint. it worked fine.