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Date: Sat, 16 Apr 2005 16:01:00 -0000
From: "green at redhat dot com" <gcc-bugzilla@gcc.gnu.org>
To: java-prs@gcc.gnu.org
Message-ID: <20050416160106.21058.green@redhat.com>
Reply-To: gcc-bugzilla@gcc.gnu.org
Subject: [Bug libgcj/21058] New: libgcj can't find class
X-Bugzilla-Reason: CC
X-SW-Source: 2005-q2/txt/msg00141.txt.bz2
List-Id: <java-prs.sourceware.org>

Given the following test program:

---- cut here -------------------------------------------
import java.awt.*;
import javax.imageio.*;

public class ShowJPEGReader
{
    public static void main (String args[])
      {
        System.out.println (Toolkit.getDefaultToolkit ());
        System.out.println (ImageIO.getImageReadersByFormatName("JPEG").next());
      }
}
---- cut here -------------------------------------------

Running it results in:

$ gij ShowJPEGReader
gnu.java.awt.peer.gtk.GtkToolkit@55e00
Exception in thread "main" java.lang.NoClassDefFoundError: while resolving
class: javax.imageio.ImageIO
   at java.lang.VMClassLoader.transformException(java.lang.Class,
java.lang.Throwable) (/home/green/FSF/4.0/i/lib/libgcj.so.6.0.0)
   at java.lang.VMClassLoader.resolveClass(java.lang.Class)
(/home/green/FSF/4.0/i/lib/libgcj.so.6.0.0)
   at java.lang.Class.initializeClass() (/home/green/FSF/4.0/i/lib/libgcj.so.6.0.0)
   at ShowJPEGReader.main(java.lang.String[]) (Unknown Source)
   at gnu.java.lang.MainThread.call_main()
(/home/green/FSF/4.0/i/lib/libgcj.so.6.0.0)
   at gnu.java.lang.MainThread.run() (/home/green/FSF/4.0/i/lib/libgcj.so.6.0.0)
Caused by: java.lang.ClassNotFoundException:
javax.imageio.ImageIO$ReaderMIMETypeFilter not found in
gnu.gcj.runtime.SystemClassLoader{urls=[file:./],
parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}
   at java.net.URLClassLoader.findClass(java.lang.String)
(/home/green/FSF/4.0/i/lib/libgcj.so.6.0.0)
   at java.lang.ClassLoader.loadClass(java.lang.String, boolean)
(/home/green/FSF/4.0/i/lib/libgcj.so.6.0.0)
   at java.lang.ClassLoader.loadClass(java.lang.String)
(/home/green/FSF/4.0/i/lib/libgcj.so.6.0.0)
   ...5 more

But javax.imageio.ImageIO$ReaderMIMETypeFilter is here:

$ nm -D ~/FSF/i/lib/libgcj.so.6.0.0 | c++filt | grep ReaderMIMETypeFilter
00deb9e0 D javax::imageio::ImageIO$ReaderMIMETypeFilter::class$
008fcc50 T javax::imageio::ImageIO$ReaderMIMETypeFilter::filter(java::lang::Object*)
008fcc10 T
javax::imageio::ImageIO$ReaderMIMETypeFilter::ImageIO$ReaderMIMETypeFilter(java::lang::String*)
00deba80 D vtable for javax::imageio::ImageIO$ReaderMIMETypeFilter

-- 
           Summary: libgcj can't find class
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libgcj
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: green at redhat dot com
                CC: aph at redhat dot com,gcc-bugs at gcc dot gnu dot
                    org,java-prs at gcc dot gnu dot org,tromey at redhat dot
                    com
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21058