On Mon, May 22, 2006 at 10:18:01AM +0200, Josef Spillner wrote: > Hi, > > I'm involved in a game project which among other clients has a Java applet > which can also run as an application. > My system is a powerpc-unknown-linux-gnu (Debian/unstable) and I've been using > Classpath-based VMs for several months for Java development. Yet the applet, > as it uses AWT and Swing, posed some problems. > > In previous months, I was glad enough that it compiled with jikes or gcj, even > though some Java 1.5 features had to be converted back (e.g. enums). But it > never ran, as the Gtk+ peering was still being developed. > > Now with classpath-0.9.1, the application starts up and displays its text in > the status bar, but the main content of a window, which uses AWT's > Graphics2D, it not shown. Instead, an exception is raised: > > Exception during event dispatch: > java.lang.ClassCastException: can't cast `gnu/java/awt/peer/gtk/GdkGraphics' > to `java/awt/Graphics2D > > Is Graphics2D still incomplete? I had a quick look at the source and it seems > to exist for a long time already. > Also, is this a Gtk+ specific problem? I'd like to try out the Qt peering, but > don't know how. The Graphics2D implementation is still in development and needs to get activated explicitely by configuring classpath with --enable-gtk-cairo and using the runtime property -Dgnu.java.awt.peer.gtk.Graphics=Graphics2D. > When trying to use gij-4.1 instead: > > ** ERROR **: > file ../../../../../../../src/libjava/classpath/native/jni/gtk-peer/gnu_java_awt_peer_gtk_GdkGraphics2D.c: > line 264 (begin_drawing_operation): assertion failed: (cairo_status (gr->cr) > == CAIRO_STATUS_SUCCESS) > aborting... That seems to be a bug in the old classpath snapshot that gcj-4.1 uses. Please file a bug with a reduced testcase to Debian and I will see what I can fix. Cheers, Michael -- Escape the Java Trap with GNU Classpath! http://www.gnu.org/philosophy/java-trap.html Join the community at http://planet.classpath.org/
