[datapulse]

When I try and generate Java classes from a class diagram it only generates the directories for the packages, but not the classes.

I don’t know if it is related but I also cannot drag and drop a Java class (from the JRE System Library) to the class diagram.

The stack trace from the log is:

!ENTRY org.eclipse.core.resources 4 2 2005-11-15 22:59:45.828
!MESSAGE Problems occurred when invoking code from plug-in: “org.eclipse.core.resources”.
!STACK 0
java.lang.NullPointerException
at com.genuitec.eclipse.uml.UMLPlugin$DeltaPrinter.visit(UMLPlugin.java:544)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:68)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:77)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:77)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:77)
at org.eclipse.core.internal.events.ResourceDelta.accept(ResourceDelta.java:49)
at com.genuitec.eclipse.uml.UMLPlugin$4.resourceChanged(UMLPlugin.java:264)
at org.eclipse.core.internal.events.NotificationManager$2.run(NotificationManager.java:276)
at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1044)
at org.eclipse.core.runtime.Platform.run(Platform.java:783)
at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:270)
at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:144)
at org.eclipse.core.internal.resources.Workspace.broadcastPostChange(Workspace.java:180)
at org.eclipse.core.internal.resources.Workspace.checkpoint(Workspace.java:243)
at org.eclipse.ltk.core.refactoring.PerformChangeOperation$1.run(PerformChangeOperation.java:237)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1719)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1739)
at org.eclipse.ltk.core.refactoring.PerformChangeOperation.executeChange(PerformChangeOperation.java:280)
at org.eclipse.ltk.internal.ui.refactoring.UIPerformChangeOperation.access$1(UIPerformChangeOperation.java:1)
at org.eclipse.ltk.internal.ui.refactoring.UIPerformChangeOperation$1.run(UIPerformChangeOperation.java:63)
at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1044)
at org.eclipse.core.runtime.Platform.run(Platform.java:783)
at org.eclipse.ltk.internal.ui.refactoring.UIPerformChangeOperation$2.run(UIPerformChangeOperation.java:81)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:123)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3057)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2716)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.block(ModalContext.java:153)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:303)
at org.eclipse.ltk.internal.ui.refactoring.RefactoringWizardDialog2.run(RefactoringWizardDialog2.java:293)
at org.eclipse.ltk.ui.refactoring.RefactoringWizard.internalPerformFinish(RefactoringWizard.java:547)
at org.eclipse.ltk.ui.refactoring.UserInputWizardPage.performFinish(UserInputWizardPage.java:153)
at org.eclipse.jdt.internal.ui.refactoring.reorg.DeleteWizard$DeleteInputPage.performFinish(DeleteWizard.java:124)
at org.eclipse.ltk.ui.refactoring.RefactoringWizard.performFinish(RefactoringWizard.java:613)
at org.eclipse.ltk.internal.ui.refactoring.RefactoringWizardDialog2.okPressed(RefactoringWizardDialog2.java:417)
at org.eclipse.jface.dialogs.Dialog.buttonPressed(Dialog.java:409)
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.ltk.ui.refactoring.RefactoringWizardOpenOperation$1.run(RefactoringWizardOpenOperation.java:125)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69)
at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.run(RefactoringWizardOpenOperation.java:138)
at org.eclipse.jdt.internal.ui.refactoring.actions.RefactoringStarter.activate(RefactoringStarter.java:40)
at org.eclipse.jdt.internal.ui.refactoring.UserInterfaceStarter.activate(UserInterfaceStarter.java:56)
at org.eclipse.jdt.internal.corext.refactoring.RefactoringExecutionStarter.startDeleteRefactoring(RefactoringExecutionStarter.java:208)
at org.eclipse.jdt.internal.ui.refactoring.reorg.DeleteAction.run(DeleteAction.java:84)
at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:222)
at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:198)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:996)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:538)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:488)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:400)
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)

!ENTRY org.eclipse.ui 4 4 2005-11-15 23:00:01.00
!MESSAGE Unhandled event loop exception

!ENTRY org.eclipse.ui 4 0 2005-11-15 23:00:01.00
!MESSAGE ru.novosoft.uml.foundation.core.MClassImpl
!STACK 0
java.lang.ClassCastException: ru.novosoft.uml.foundation.core.MClassImpl
at org.argouml.model.uml.NSUMLModelFacade.getSpecifications(NSUMLModelFacade.java:4071)
at org.argouml.language.java.generator.GeneratorJava.generateImports(GeneratorJava.java:347)
at org.argouml.language.java.generator.GeneratorJava.generateHeader(GeneratorJava.java:263)
at org.argouml.language.java.generator.GeneratorJava.generateFile2(GeneratorJava.java:213)
at com.genuitec.eclipse.uml.wizard.NewUMLJavaCodeGenWizard.performFinish(NewUMLJavaCodeGenWizard.java:158)
at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:676)
at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:349)
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 com.genuitec.eclipse.uml.action.GenerateJavaActionDelegate.basicRun(GenerateJavaActionDelegate.java:46)
at com.genuitec.eclipse.uml.action.GenerateJavaActionDelegate.run(GenerateJavaActionDelegate.java:34)
at com.genuitec.eclipse.core.ui.action.LicenseValidatingActionDelegate.runWithEvent(Unknown Source)
at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:236)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:538)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:488)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:400)
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.

[Riyad Kalla]

Are your classes making use of any Java 5 features by chance? This isn’t supported yet.

[datapulse]

There are no Java 5 features as such, although my JRE is 1.5.

The only class that is referenced that is not from the class diagram itself is String…

[Riyad Kalla]

Ok, then can you please post all the information we request in the [URL=http://www.myeclipseide.com/PNphpBB2+file-viewtopic-t-393.html]Posting Guidelines[/URL] thread at the top of this forum? That will give us some context so that we can determine if this is an installation issue, a configuration problem, or a bug. Thanks.

[datapulse]

OK, the stack trace at top of the post is from the Error Log.

The Configuration Summary is :
*** Date: Wed Nov 16 21:39:31 CET 2005

*** System properties:
OS=WindowsXP
OS version=5.1
Java version=1.5.0_05

*** MyEclipse details:
MyEclipse Enterprise Workbench

Version: 4.0.3 GA
Build id: 20051025-4.0.3-GA

*** Eclipse details:
Eclipse SDK

Version: 3.1.1
Build id: M20050929-0840

Eclipse Platform

Version: 3.1.1
Build id: M20050929-0840

Eclipse RCP

Version: 3.1.1
Build id: M20050929-0840

Eclipse Java Development Tools

Version: 3.1.1
Build id: M20050929-0840

Eclipse Plug-in Development Environment

Version: 3.1.1
Build id: M20050929-0840

Eclipse Project SDK

Version: 3.1.1
Build id: M20050929-0840

Eclipse startup command=-os
win32
-ws
win32
-arch
x86
-launcher
C:\java\eclipse3_1_1\eclipse\eclipse.exe
-name
Eclipse
-showsplash
600
-exitdata
d78_60
-vm
C:\WINDOWS\system32\javaw.exe

Other information
=================
The class diagram is simple, just 8 interfaces and 4 classes.

When I select UML->Generate Java the “UML Forward Engineering” dialog is displayed and I click on “Finish”.

A dialog is displayed stating the project is not empty, Do you want to want to replace existing files?
Click on “Yes”, it goes away leaving the “UML Forward Engineering” dialog visible.

All that gets created is the folders that would make up the required package.

The outcome is exactly the same if the output folders don’t exist (i.e. nothing to overwrite).

Do you need anything else?
thanks.

[Riyad Kalla]

I checked with one of our UML developers and he immediately suggested that this behavior is indicative of a diagram that represents invalid Java code. For example, a Class implementing another Class. Basically the diagramming supports all UML constructs, like multiple inheritence. But right now if you tried to gen Java from it, the generation simply fails. We are working on adding validation down the road.

Can you double check your diagram and if you can’t see the problem, email it to support@genuitec.com ATTN Riyad with a link to this thread so I know why I’m getting it.

[datapulse]

Just sent you the UMR file. I deleted everything except the bare classes and interfaces and it still failed to generate code.

[Riyad Kalla]

I received your file (deliverance.umr) and went to the UML menu, Generatae Java > selected my com.yourcompany.struts package (in a test project) and hit Finsh, bam, I got all the files generated correctly.

I’d like to try a new workspace really quickly: File > Switch Workspace > C:\tempworkspace, hit OK. Now create a new project and copy your UMR into it (the one you sent me) and try and generate Java from it, did it wokr?

[datapulse]

Thanks, that worked.

It also worked when I created a new project in the original workspace and copied the umr file into there.

Any idea what screwed my original project?

One thing I still don’t get though is how does a class in the model implement an interface in the rt.jar? I cannot drag and drop a class, nor can I enter anything in the specializations box.

thanks again.

[Kapil Kapre]

datapulse,
ATM we only support drag and drop of actual java files into the model. We will be expanding this functionalty in future releases.

[Author]

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