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Date: Thu, 29 Jul 2004 21:02:00 -0000
From: "mark at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: java-prs@gcc.gnu.org
Message-ID: <20040729210255.16824.mark@gcc.gnu.org>
Reply-To: gcc-bugzilla@gcc.gnu.org
Subject: [Bug AWT/16824] New: GdkPixbufDecoder crashes with image loading programs
X-Bugzilla-Reason: CC
X-SW-Source: 2004-q3/txt/msg00148.txt.bz2
List-Id: <java-prs.sourceware.org>

I found a strange segfault issue in programs that try to load/display images
(GIF/JPEG).

Mark and I have located the segfault to occur in
native/jni/gtk-peer/gnu_java_awt_peer_gtk_GdkPixbufDecoder.c Line 226. Here is
gdk_env used (which probably should be env instead). The real problem seems to
be, that GTKToolkit is not yet initialized properly.

The following workaround seems to work though:

--- gnu/java/awt/peer/gtk/GdkPixbufDecoder.java 26 Jun 2004 16:06:47 -0000 1.5
+++ gnu/java/awt/peer/gtk/GdkPixbufDecoder.java 28 Jun 2004 20:34:49 -0000
@@ -57,6 +57,8 @@
System.loadLibrary("gtkpeer");
}
initStaticState ();
+ java.awt.Toolkit.getDefaultToolkit();
+ try { Thread.sleep(500); } catch (InterruptedException ignored) { }
}
native static void initStaticState ();
private final int native_state = GtkGenericPeer.getUniqueInteger ();

this means, if we wait long enough for GTKToolkit to initialize, the segfault
does not occur.

Any ideas how to fix this? Maybe I should add that I tried that with JamVM 1.1.4

/Roman

This bug report comes from GNU Classpath:
https://savannah.gnu.org/bugs/index.php?func=detailitem&item_id=9484

-- 
           Summary: GdkPixbufDecoder crashes with image loading programs
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: AWT
        AssignedTo: fitzsim at redhat dot com
        ReportedBy: mark at gcc dot gnu dot org
                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=16824