Do you have the Sun JDK installed? The Jdeveloper install probably included a JDK. It could be that after the upgrade, the first "java" in your path is the gcc java, which I am not familiar with. You may have to adjust your path/symlinks so that the correct JVM is invoked. Try running... java -version And see what it says. The command... which java Will show you which java is first in your path. -----Original Message----- From: fedora-list-bounces@xxxxxxxxxx [mailto:fedora-list-bounces@xxxxxxxxxx] On Behalf Of Cyrus Adkisson Sent: Monday, November 15, 2004 4:50 PM To: For users of Fedora Core releases Subject: Re: NoClassDefFoundError after upgrade to FC3 Correction: The error below is only if the java file is executed from the wrong directory. When executed from the correct directory, the same error from before happens: java.lang.NoClassDefFoundError at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:141) at oracle.ide.IdeCore.class$(IdeCore.java:89) at oracle.ide.IdeCore.startupImpl(IdeCore.java:775) at oracle.ide.Ide.startup(Ide.java:539) at oracle.jdeveloper.JDeveloper.launch(JDeveloper.java:58) at oracle.jdeveloper.JDeveloper.main(JDeveloper.java:37) Cyrus Adkisson wrote: > Well, there are about 200 jar files in the jdev installation > directory, so the shotgun approach isn't very appealing. I don't see > any kind of log files anywhere, either... I was able to do one thing, > which was print out the actual java command (which is HUGE) with an > echo in the jdev launch script. Cutting and pasting it, I was able to > get more descriptive NoClassDefFoundError output: > > Exception in thread "main" java.lang.NoClassDefFoundError: > oracle/jdeveloper/JDeveloper > > I'm probably an idiot for not knowing right away what the problem is > now. I know that java can't find the correct jar file containing the > JDeveloper class, but how do I know where that is? > jdevinstalldir/jdev/lib/jdev.jar has already been inserted into the > classpath... what now? > > Cyrus > > Cortezzo, Jason wrote: > >> Usually, a NoClassDefFoundError will have a message, which specifies >> the missing class, before the stack trace like... >> >> Exception in thread "main" java.lang.NoClassDefFoundError: >> com/somepackage/SomeClass >> Without it, it's a lot harder to figure out what is missing. Does >> Jdev have a log file that you could look at to try to find out which >> class is missing? Otherwise, you can try a shotgun approach. Locate >> all your jar files in your Jdev installation (find /jdevinstalldir >> -name *.jar) and make sure that they are all in your classpath. >> >> Check the script that starts the IDE and see if it is setting a >> classpath. >> Sometimes the CP is set using a command line option of the java >> command (i.e. something like: java -cp {classpath} >> com.oracle.IDEStartup). Make sure all the jar files that the script expects to find actually exist. >> >> The Eclipse error message is a little more descriptive. It's looking >> for a native library (as opposed to a Java class file) and it's >> telling you exactly which one it is looking for >> "/usr/local/eclipse/plugins/org.eclipse.swt.gtk64_3.0.1/os/linux/amd6 >> 4/libsw >> >> t-pi-gtk-3063.so" >> >> -Jason >> >> -----Original Message----- >> From: fedora-list-bounces@xxxxxxxxxx >> [mailto:fedora-list-bounces@xxxxxxxxxx] >> On Behalf Of Cyrus Adkisson >> Sent: Monday, November 15, 2004 1:22 PM >> To: For users of Fedora Core releases >> Subject: Re: NoClassDefFoundError after upgrade to FC3 >> >> Thanks for the reply. That's the whole error as far as jdev is >> concerned. >> When I try to run eclipse I get the following error, which may or may >> not be >> related: >> >> java.lang.UnsatisfiedLinkError: >> /usr/local/eclipse/plugins/org.eclipse.swt.gtk64_3.0.1/os/linux/amd64 >> /libswt >> >> -pi-gtk-3063.so: >> /usr/local/eclipse/plugins/org.eclipse.swt.gtk64_3.0.1/os/linux/amd64 >> /libswt >> >> -pi-gtk-3063.so: cannot open shared object file: No such file or >> directory >> at java.lang.ClassLoader$NativeLibrary.load(Native Method) >> at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1586) >> at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1495) >> at java.lang.Runtime.loadLibrary0(Runtime.java:788) >> at java.lang.System.loadLibrary(System.java:834) >> at org.eclipse.swt.internal.Library.loadLibrary(Library.java:100) >> at org.eclipse.swt.internal.gtk.OS.<clinit>(OS.java:19) >> at >> org.eclipse.swt.internal.Converter.wcsToMbcs(Converter.java:63) >> at >> org.eclipse.swt.internal.Converter.wcsToMbcs(Converter.java:54) >> at org.eclipse.swt.widgets.Display.<clinit>(Display.java:118) >> at >> org.eclipse.ui.internal.Workbench.createDisplay(Workbench.java:268) >> at org.eclipse.ui.PlatformUI.createDisplay(PlatformUI.java:153) >> at >> org.eclipse.ui.internal.ide.IDEApplication.createDisplay(IDEApplicati >> on.java >> >> :122) >> at >> org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:72) >> at >> org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator. >> >> java:335) >> at >> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.ja >> va:273) >> >> at >> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.ja >> va:129) >> >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl. >> java:39 >> >> ) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces >> sorImpl >> >> .java:25) >> at java.lang.reflect.Method.invoke(Method.java:324) >> at org.eclipse.core.launcher.Main.basicRun(Main.java:185) >> at org.eclipse.core.launcher.Main.run(Main.java:704) >> at org.eclipse.core.launcher.Main.main(Main.java:688) >> >> Also, I just upgraded my java rpm (and set JAVA_HOME to the new >> location), so I know all the files are there. It must be a jar file >> that isn't in the classpath. What jar files would normally be in the >> CLASSPATH? >> >> Cyrus >> >> >> Cortezzo, Jason wrote: >> >> >> >>> Are you giving us the entire exception message? It should tell you >>> which class it is looking for. I think it usually prints right >>> before the stack trace. >>> >>> A NoClassDefFoundError means either a .jar file is missing or your >>> CLASSPATH enviornment no longer contains the necessary file. >>> >>> -Jason >>> >>> -----Original Message----- >>> From: fedora-list-bounces@xxxxxxxxxx >>> [mailto:fedora-list-bounces@xxxxxxxxxx] >>> On Behalf Of Cyrus Adkisson >>> Sent: Monday, November 15, 2004 1:10 PM >>> To: For users of Fedora Core releases >>> Subject: Re: NoClassDefFoundError after upgrade to FC3 >>> >>> Well, I uncovered one big clue. Whenever you upgrade to FC3, the >>> system attempts to install gcc-java (and does) which can screw up >>> the workings of your Sun java considerably. Among other things, FC3 >>> installs a /usr/bin/java script that points to the gcc-java code so >>> when you type java -version it gives you a bunch of gcc output. If >>> you disable the /usr/bin/java script, then it will revert back to >>> the Sun java. >>> >>> However, doing that did not fix my problem. Jdeveloper still gives >>> the same error I posted previously, as if it's searching for >>> something in the classpath. Eclipse does something similar. Can >>> anyone help me understand what I might need in the classpath for >>> this to work again? >>> >>> Cyrus >>> >>> Cyrus Adkisson wrote: >>> >>> >>> >>> >>> >>>> Hi everybody. I use jDeveloper from Oracle to program, create GUIs >>>> and manage my various projects. It's not open-source, but it's a >>>> very good program. I have been using it without errors for at least >>>> a year. >>>> Then, when I upgraded to Fedora Core 3, it was the only thing on my >>>> computer that stopped working. When I click on the icon on my >>>> desktop, nothing pops up, and top shows a massive load on the CPU >>>> for "jdev". >>>> When I run it in a terminal window, I get the following error: >>>> >>>> java.lang.NoClassDefFoundError >>>> at java.lang.Class.forName0(Native Method) >>>> at java.lang.Class.forName(Class.java:141) >>>> at oracle.ide.IdeCore.class$(IdeCore.java:89) >>>> at oracle.ide.IdeCore.startupImpl(IdeCore.java:775) >>>> at oracle.ide.Ide.startup(Ide.java:539) >>>> at oracle.jdeveloper.JDeveloper.launch(JDeveloper.java:58) >>>> at oracle.jdeveloper.JDeveloper.main(JDeveloper.java:37) >>>> >>>> I've got the same java SDK I had before, and the configuration >>>> files are pointing to it. Can anybody think of why an upgrade to >>>> Fedora Core >>>> 3 would be causing this error? >>>> >>>> Thanks, >>>> Cyrus >>>> >>>> >>>> >>> >>> -- >>> fedora-list mailing list >>> fedora-list@xxxxxxxxxx >>> To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list >>> >>> >>> >>> >> >> >> >> -- >> __________________ >> Cyrus Adkisson >> RooseveltMedia.com >> 1833 New Hampshire Avenue NW >> Washington, DC 20009 >> (202)465-4359 >> >> -- >> fedora-list mailing list >> fedora-list@xxxxxxxxxx >> To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list >> >> >> > > -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list
