JBoss jBPM tutorial HelloTest.java doesn't passes the test b

[anupamsinha123]

Hi All,

I am presently on http://docs.jboss.com/jbpm/v3/gpd/completing.html. I am trying to add an action on the processdefinition.xml page but it's not getting added. It says The selected class has no fields to configure and throws an exception.

I am using eclipse 3.1 and JDK 1.5.

Please find attached the full trace for the eclipse exception.

!ENTRY org.eclipse.jface 4 0 2006-03-13 15:16:05.78
!MESSAGE java.lang.NullPointerException
!STACK 0
java.lang.NullPointerException
 at org.jbpm.ui.properties.ActionHandlerPropertyPage.performOk(Unknown Source)
 at org.eclipse.jface.preference.PreferenceDialog$11.run(PreferenceDialog.java:862)
 at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1044)
 at org.eclipse.core.runtime.Platform.run(Platform.java:783)
 at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:44)
 at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:148)
 at org.eclipse.jface.preference.PreferenceDialog.okPressed(PreferenceDialog.java:842)
 at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.okPressed(FilteredPreferenceDialog.java:296)
 at org.eclipse.jface.preference.PreferenceDialog.buttonPressed(PreferenceDialog.java:227)
 at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:556)
 at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:90)
 at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
 at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
 at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3080)
 at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2713)
 at org.eclipse.jface.window.Window.runEventLoop(Window.java:809)
 at org.eclipse.jface.window.Window.open(Window.java:787)
 at org.eclipse.ui.dialogs.PropertyDialogAction.run(PropertyDialogAction.java:157)
 at org.jbpm.ui.part.tree.ElementTreeEditPart.openPropertyDialog(Unknown Source)
 at org.jbpm.ui.part.tree.ElementTreeEditPart.performRequest(Unknown Source)
 at org.jbpm.ui.outline.DesignerOutlineViewer.handleDoubleClick(Unknown Source)
 at org.jbpm.ui.outline.DesignerOutlineViewer.access$3(Unknown Source)
 at org.jbpm.ui.outline.DesignerOutlineViewer$4.mouseDoubleClick(Unknown Source)
 at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:141)
 at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
 at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
 at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3080)
 at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2713)
 at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699)
 at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663)
 at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:367)
 at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
 at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)
 at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:226)
 at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
 at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:163)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.lang.reflect.Method.invoke(Unknown Source)
 at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334)
 at org.eclipse.core.launcher.Main.basicRun(Main.java:278)
 at org.eclipse.core.launcher.Main.run(Main.java:973)
 at org.eclipse.core.launcher.Main.main(Main.java:948)

[kukeltje]

post the actionhandler here and the process please. This is to little information to give you a definitive answer. Most likely you configured a variable in the process to be passed to the actionhandler without adding it as a field or setter to the actionhandler.

Ronald

[thedog]

Seems to be problem with the Properties GUI. If you write the class name into the processdefinition.xml then it works (compile/run OK). The property dialog will show the classname when opened afterwards but pressing ok will show the stacktrace from above.

[koen.aers]

This is a bug, already corrected in CVS. The workaround is to use the sourcepage. There is an upcoming release so stay tuned.

Regards,
Koen

[rob.hadfield]

Here's how thedog's suggestion should look in processdefinition.xml:

<start-state name="start">
 <transition name="to_auction" to="auction">
 <action name="hello" class="com.jbay.action.HelloActionHandler">
 </action>
 </transition>
 </start-state>

Regards,
ROb