[Bug libgcj/23800] New: Exception in thread "main" java.lang.NullPointerException at java.lang.Object.getClass()

thompson at fresno dot edu gcc-bugzilla@gcc.gnu.org
Fri Sep 9 19:49:00 GMT 2005


X-Bugzilla-Reason: CC

Background: I upgraded from Fedora Core 3 to Fedora Core 4 and now
Jreepad-1.4.1.jar doesn't execute. I reported it to the Jreepad author who
indicated I should report it to the libgcj maintainer since it might represent a
significant bug in the library (see copy of e-mail exchange below). When I
upgraded to libgcj 4.0.1, I still get a similar error.



[mailing-lists] [ jreepad-Bugs-1286236 ] upgrade from Fedora Core 3 to 4 kills
jreepad
 Date: Today 11:24:29
 From: "SourceForge.net" <noreply@sourceforge.net>
 To: noreply@sourceforge.net
 
Bugs item #1286236, was opened at 2005-09-09 18:06
Message generated for change (Comment added) made by danstowell
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=613614&aid=1286236&group_id=96093

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: None
Group: None
>Status: Closed
>Resolution: Wont Fix
Priority: 5
Submitted By: david a thompson (dathomp1)
Assigned to: Nobody/Anonymous (nobody)
Summary: upgrade from Fedora Core 3 to 4 kills jreepad

Initial Comment:
Background: I'm using Jreepad-1.4.1.jar - the program
worked fine with Fedora Core 3

Problem: upgraded to Fedora Core 4 and now I get:

[root@localhost ~]# java -jar
/usr/local/bin/Jreepad-1.4.1.jar
Exception in thread "main" java.lang.NullPointerException
   at java.lang.Object.getClass()
(/usr/lib/libgcj.so.6.0.0)
   at
jreepad.JreepadView.JreepadView(jreepad.JreepadNode)
(Unknown Source)
   at jreepad.JreepadView.JreepadView() (Unknown Source)
   at
jreepad.JreepadViewer.JreepadViewer(java.lang.String,
java.lang.String) (Unknown Source)
   at jreepad.JreepadViewer.main(java.lang.String[])
(Unknown Source)
   at gnu.java.lang.MainThread.call_main()
(/usr/lib/libgcj.so.6.0.0)
   at gnu.java.lang.MainThread.run()
(/usr/lib/libgcj.so.6.0.0)
[root@localhost ~]# 


I'm guessing that FC4 had an update to libgcj (the rpm
is libgcj-4.0.0-8) which has caused Jreepad some
unhappiness...

Best wishes -- it's a great piece of software.

Alan

----------------------------------------------------------------------

>Comment By: Dan Stowell (danstowell)
Date: 2005-09-09 18:24

Message:
Logged In: YES 
user_id=920180

Hi - Thanks for the notice, but from the system output it looks like the 
problem is not inside Jreepad but in the "Object" class (!) - probably 
something very dodgy in the "libgcj" release you've just downloaded. 
Please forward the report onto whoever maintains libcgj, since it is 
potentially quite a wide-ranging bug!

Best
Dan

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=613614&aid=1286236&group_id=96093

-- 
           Summary: Exception in thread "main"
                    java.lang.NullPointerException at
                    java.lang.Object.getClass()
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libgcj
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: thompson at fresno dot edu
                CC: gcc-bugs at gcc dot gnu dot org,java-prs at gcc dot gnu
                    dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23800



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