[FIXED] [GWT 2.0m1] Attaching CheckBox to Container throws runtime exception

[jlr]

Looks like simply attaching a CheckBox to a Container throws a RuntimeException.

- GXT version: 2.0m1
- GWT version: 1.6.4
- Hosted mode
- Red Hat Fedora 8

Sample code

public class Test implements EntryPoint {

    /**
     * This is the entry point method.
     */
    public void onModuleLoad() {
    
        ContentPanel panel = new ContentPanel();
        CheckBox checkBox = new CheckBox();
        panel.add(checkBox);
        
        RootPanel.get().add(panel);
    }
}

Stack trace:

[ERROR] Uncaught exception escaped
java.lang.RuntimeException: Failed to invoke native method: @com.extjs.gxt.ui.client.core.El::getAlignToXY(Lcom/google/gwt/user/client/Element;Ljava/lang/String;[I) with 3 arguments.
    at com.google.gwt.dev.shell.moz.LowLevelMoz.invoke(LowLevelMoz.java:134)
    at com.google.gwt.dev.shell.moz.ModuleSpaceMoz.doInvoke(ModuleSpaceMoz.java:99)
    at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:453)
    at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:231)
    at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
    at com.extjs.gxt.ui.client.core.El.getAlignToXY(El.java)
    at com.extjs.gxt.ui.client.core.El.alignTo(El.java:254)
    at com.extjs.gxt.ui.client.widget.form.CheckBox.alignElements(CheckBox.java:211)
    at com.extjs.gxt.ui.client.widget.form.CheckBox.onAttach(CheckBox.java:221)
    at com.extjs.gxt.ui.client.widget.ComponentHelper.doAttach(ComponentHelper.java:23)
    at com.extjs.gxt.ui.client.widget.Container.doLayout(Container.java:377)
    at com.extjs.gxt.ui.client.widget.Container.layout(Container.java:294)
    at com.extjs.gxt.ui.client.widget.LayoutContainer.layout(LayoutContainer.java:238)
    at com.extjs.gxt.ui.client.widget.Container$1.execute(Container.java:448)
    at com.google.gwt.user.client.CommandExecutor.doExecuteCommands(CommandExecutor.java:310)
    at com.google.gwt.user.client.CommandExecutor$2.run(CommandExecutor.java:205)
    at com.google.gwt.user.client.Timer.fireImpl(Timer.java:160)
    at com.google.gwt.user.client.Timer.fireAndCatch(Timer.java:146)
    at com.google.gwt.user.client.Timer.fire(Timer.java:138)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:585)
    at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
    at com.google.gwt.dev.shell.moz.MethodDispatch.invoke(MethodDispatch.java:80)
    at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method)
    at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:1428)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2840)
    at com.google.gwt.dev.SwtHostedModeBase.processEvents(SwtHostedModeBase.java:235)
    at com.google.gwt.dev.HostedModeBase.pumpEventLoop(HostedModeBase.java:558)
    at com.google.gwt.dev.HostedModeBase.run(HostedModeBase.java:405)
    at com.google.gwt.dev.HostedMode.main(HostedMode.java:232)

[sven]

This is a known issue in the first milestone release and will be fixed soon.

[misqu]

In my application the same happens with combo box within formpanel.

When the next milestone will be released ?

Martin

[sven]

This is already fixed in SVN.

If it is urgent for you to get bugfixes as fast as possible you can consider to get a support subscription.

http://www.extjs.com/store/gxt/#support-table

[findepi]

you can download the official gxt.jat 2.0m1 http://extjs.com/products/gxt/downlo...p?dl=extgwt2m1, unzip it, apply the below patch and copy the whole resultin 'com' directory to your project's src/.

diff -urN gxt-old/com/extjs/gxt/ui/client/core/El.java gxt-new/com/extjs/gxt/ui/client/core/El.java
--- gxt-old/com/extjs/gxt/ui/client/core/El.java        2009-04-15 08:47:10.000000000 +0200
+++ gxt-new/com/extjs/gxt/ui/client/core/El.java        2009-05-06 23:42:41.000000000 +0200
@@ -679,11 +679,19 @@
    * @return the point
    */
   public native Point getAlignToXY(Element align, String pos, int[] offsets) /*-{
-   var ox = offsets[0] || 0;
-   var oy = offsets[1] || 0;
+   var ox = @com.extjs.gxt.ui.client.core.El::__get([III)(offsets, 0, 0);
+   var oy = @com.extjs.gxt.ui.client.core.El::__get([III)(offsets, 1, 0);
    var xy = $wnd.GXT.Ext.Element.fly(this.@com.extjs.gxt.ui.client.core.El::dom).getAlignToXY(align, pos, ox, oy);
    return @com.extjs.gxt.ui.client.util.Point::newInstance(DD)(xy[0],xy[1]);
   }-*/;
+
+  @SuppressWarnings("unused")
+       private static int __get(int[] array, int index, int def) {
+               if (index < array.length) {
+                       return array[index];
+               } else
+                       return def;
+       }

   /**
    * Returns the x,y coordinates specified by the anchor position on the

If it's legal to redistribute the resulting code under GPLv3, then you can download a jar file with the above modifications already made from http://students.mimuw.edu.pl/~findep...-2.0-m1-pf.jar.

Beware that it makes code work but not display correctly.