Hello, I try to create a Java J2SE (Java Desktop) port to HP webOS with Gnu Claspath and JamVVM. You can find my working page here : Building JamVM and GNU Classpath and Jikes (for Java support in webOS) with scratchbox2 http://www.webos-internals.org/wiki/Building_JamVM_and_GNU_Classpath_and_Jikes_%28for_Java_support_in_webOS%29_with_scratchbox2 All the compilation options and installation steps for Gnu Classpath 0.98, escher 0.3.0, javm 1.5.4 are detailed in the web page here : http://www.webos-internals.org/wiki/Building_JamVM_and_GNU_Classpath_and_Jikes_%28for_Java_support_in_webOS%29_with_scratchbox2 1) I patch Gnu Classpath 0.98 with the patch here http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41057 to compile and install it with escher 0.3.0. 2) I use this line for compiling Gnu Classpath : LDFLAGS="-L/usr/local/lib -Wl,-rpath=/media/internal/opt/lib" CPPFLAGS="-I/usr/local/include" ./configure --prefix=/media/internal/opt --disable-examples --with-x --disable-qt-peer --disable-gtk-peer --disable-gconf-peer --disable-plugin --disable-alsa --disable-dssi --with-escher=/home/ubuntu/java-project/escher-1.9.90/src --enable-local-sockets --enable-collections --enable-xmlj --enable-default-toolkit=gnu.java.awt.peer.x.XToolkit My problem is that when I launch the JRE and with Xterm started, I have the following error message : root@Palm Pre:/media/internal# /media/internal/opt/bin/jamvm HelloWorld -bootclasspath /media/internal/opt/share/jamvm/classes.zip:/media/internal/opt/share/classpath/glibj.zip:/media/internal/opt/share/classpath/escher-0.3.jar:/media/internal/opt/share/classpath/collections.jar HelloWorld -Dawt.toolkit=gnu.java.awt.peer.x.XToolkit HelloWorld Exception in thread "main" java.lang.ClassCastException: [B at gnu.x11.Window.change_property(Window.java:742) at gnu.x11.Window.change_property(Window.java:1592) at gnu.x11.Window.set_wm_protocol(Window.java:2093) at gnu.x11.Window.set_wm_delete_window(Window.java:2082) at gnu.java.awt.peer.x.XWindowPeer.<init>(XWindowPeer.java:110) at gnu.java.awt.peer.x.XFramePeer.<init>(XFramePeer.java:67) at gnu.java.awt.peer.x.XToolkit.createFrame(XToolkit.java:304) at java.awt.Frame.addNotify(Frame.java:440) at java.awt.Window.show(Window.java:252) at java.awt.Component.show(Component.java:1046) at java.awt.Component.setVisible(Component.java:977) at HelloWorld.<init>(HelloWorld.java:19) at HelloWorld.main(HelloWorld.java:5) root@localhost:/media/internal# 1) The HelloWorld.java source code is available here : http://www.xinotes.org/notes/note/1105/ 2) The HelloWorld.class file, compiled with Jikes 1.22, works fine with the Java JRE 1.6.0_07 and Windows Vista. Any idea to fix this problem ? My goal is to create the webOS internals's Java Desktop PDK for webOS as webOS PDK with C/C++. Thank you for your help. Best regards Yannick
