RE: NoClassDefFoundError after upgrade to FC3

From: Cortezzo, Jason (Jason.Cortezzo_at_ssa.gov)
Date: 11/15/04

  • Next message: Jurgen Kramer: "FC3: ssh does not set DISPLAY variable" 
    To: "'For users of Fedora Core releases'" <fedora-list@redhat.com>
Date: Mon, 15 Nov 2004 13:42:30 -0500

    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/amd64/libsw
    t-pi-gtk-3063.so"

    -Jason

    -----Original Message-----
    From: fedora-list-bounces@redhat.com [mailto:fedora-list-bounces@redhat.com]
    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(IDEApplication.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.java:273)
            at
    org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:129)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
    )
            at
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
    .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@redhat.com
    >[mailto:fedora-list-bounces@redhat.com]
    >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@redhat.com
    >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@redhat.com
To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list
-- 
fedora-list mailing list
fedora-list@redhat.com
To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list
  • Next message: Jurgen Kramer: "FC3: ssh does not set DISPLAY variable"

    Relevant Pages

    • Re: How to get the info from the database
      ... Yes, you are indeed missing something, if you are programming in Java. ... There is no sharing of information between the PATH and the CLASSPATH. ...
      (comp.lang.java.databases)
    • Re: Problems installing GeoGebra
      ... I may just be missing it, but I don't see variables for your JAVA ... related stuff, like sourcepath and classpath. ...
      (Ubuntu)
    • porting java 1.4.2 application to J#
      ... I've got an application that's written for java 1.4.2 and I'd like to ... compile this with J#. ... Now, this works fine, but some classes are missing. ...
      (microsoft.public.dotnet.vjsharp)
    • Re: Question for Java Gurus
      ... > people running into classpath issues while doing command line work. ... in which case it's clear that their environment is impeding their ... success at learning Java. ... programming, that's a negligible space of education. ...
      (comp.lang.java.programmer)
    • Re: Question for Java Gurus
      ... > people running into classpath issues while doing command line work. ... in which case it's clear that their environment is impeding their ... success at learning Java. ... programming, that's a negligible space of education. ...
      (comp.lang.java.help)
    Loading