libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkImage.c: line 572 (createRawData): assertion failed: (data_fid != 0)

[sbodo]

Compiling to native and running some java demo code found on the site http://jroller.com/page/gfx
will result in the following error:

** ERROR **: file ../../../src/libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkImage.c: line 572
(createRawData): assertion failed: (data_fid != 0)
aborting...

This is with gcj-4.0.1-4ubuntu4.

I saw that Ubuntu apply the patch "classpath-20050618.dpatch" to the gcj code which has the
createRawData function:

+/* Store and get the pixbuf pointer */
+static void
+createRawData (JNIEnv * env, jobject obj, void *ptr)
+{
+ jclass cls;
+ jmethodID method;
+ jobject data;
+ jfieldID data_fid;
+
+ cls = (*env)->GetObjectClass (env, obj);
+ data_fid = (*env)->GetFieldID (env, cls, "pixmap",
+ "Lgnu/classpath/RawData;");
+ g_assert (data_fid != 0);

^^^^ this seems to trigger the bug

gnu.gcj.Rawdata does not looks like it would have a "pixmap" field (at least at a first glance - im
not familiar with the code) :

/** A type used to indicate special data used by native code that should not
    be marked by the garbage collector. */

public final class RawData
{
   private RawData() { }
}

[sbodo (sbodomerle)]

Please see Debian Bug#324502: libgcj6-awt: [GtkImage] assertion failed in
compiled code
Seems to be the same bug.

[sbodo (sbodomerle)]

(In reply to comment #1)
> Please see Debian Bug#324502: libgcj6-awt: [GtkImage] assertion failed in
> compiled code
> Seems to be the same bug.

The bug is still present in the latest debian gcj version:

gcc version 4.0.2 20050821 (prerelease) (Debian 4.0.1-6)

[Matthias Klose (doko)]

fixing in gcj-4.1

[Matthias Klose (doko)]

fixing in gcj-4.1, closing the report