MyEclipse: Reverse Engineer UML from Java: Creation of element failed
MyEclipseUser2010 - Jul 13, 2010 - 12:36 AM
Post subject: Reverse Engineer UML from Java: Creation of element failed
I get the following error when I tried doing Reverse Engineer UML from Java:

Creation of element failed
handle: Parameter: return or type: Package: List

===============================================================================================
I'm using:
MyEclipse Enterprise Workbench

Version: 8.5
Build id: 8.5-20100319

===============================================================================================
Installation Summary:
*** Date:
Monday, July 12, 2010 4:35:13 PM PDT

** System properties:
OS=Linux
OS version=2.6.32
Java version=1.6.0_13


*** MyEclipse details:
MyEclipse Enterprise Workbench
Version: 8.5
Build id: 8.5-20100319


*** Eclipse details:
MyEclipse Enterprise Workbench

Version: 8.5
Build id: 8.5-20100319


Eclipse startup command=-os
linux
-ws
gtk
-arch
x86_64
-showsplash
-launcher
/home/tonyd/Genuitec/MyEclipse 8.x Latest/myeclipse
-name
Myeclipse
--launcher.library
/home/tonyd/Genuitec/MyEclipse 8.x Latest//../Common/plugins/org.eclipse.equinox.launcher.gtk.linux.x86_64_1.0.200.v20090519/eclipse_1206.so
-startup
/home/tonyd/Genuitec/MyEclipse 8.x Latest//../Common/plugins/org.eclipse.equinox.launcher_1.0.201.R35x_v20090715.jar
-exitdata
a6f8024
-install
/home/tonyd/Genuitec/MyEclipse 8.x Latest
-configuration
/home/tonyd/Genuitec/MyEclipse 8.x Latest/configuration
-vm
/home/tonyd/Genuitec/Common/binary/com.sun.java.jdk.linux.x86_64_1.6.0.013/bin/java


===============================================================================================
Error log:

java.lang.reflect.InvocationTargetException
at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:477)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:944)
at com.genuitec.eclipse.core.portability.NewElementWizard.performFinish(NewElementWizard.java:112)
at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:752)
at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:373)
at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:228)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1176)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3493)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3112)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
at org.eclipse.jface.window.Window.open(Window.java:801)
at com.genuitec.eclipse.uml.action.UMLImportSourcesActionDelegate$1$1.run(UMLImportSourcesActionDelegate.java:72)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3468)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3115)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
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:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
at org.eclipse.equinox.launcher.Main.main(Main.java:1287)
Caused by: java.lang.IllegalArgumentException: handle: Parameter: return or type: Package: List
at org.argouml.model.uml.CoreHelperImpl.setType(CoreHelperImpl.java:3289)
at org.argouml.uml.reveng.java.Modeller.addOperation(Modeller.java:1544)
at com.genuitec.eclipse.uml.wizard.ReverseEngineerJavaWizard.parseFile(ReverseEngineerJavaWizard.java:452)
at com.genuitec.eclipse.uml.wizard.ReverseEngineerJavaWizard.doImport(ReverseEngineerJavaWizard.java:179)
at com.genuitec.eclipse.uml.wizard.ReverseEngineerJavaWizard.finishPage(ReverseEngineerJavaWizard.java:116)
at com.genuitec.eclipse.core.portability.NewElementWizard$2.run(NewElementWizard.java:105)
at org.eclipse.jdt.internal.core.BatchOperation.executeOperation(BatchOperation.java:39)
at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:728)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800)
at org.eclipse.jdt.core.JavaCore.run(JavaCore.java:4694)
at org.eclipse.jdt.internal.ui.actions.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:106)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
... 39 more
Root exception:
java.lang.IllegalArgumentException: handle: Parameter: return or type: Package: List
at org.argouml.model.uml.CoreHelperImpl.setType(CoreHelperImpl.java:3289)
at org.argouml.uml.reveng.java.Modeller.addOperation(Modeller.java:1544)
at com.genuitec.eclipse.uml.wizard.ReverseEngineerJavaWizard.parseFile(ReverseEngineerJavaWizard.java:452)
at com.genuitec.eclipse.uml.wizard.ReverseEngineerJavaWizard.doImport(ReverseEngineerJavaWizard.java:179)
at com.genuitec.eclipse.uml.wizard.ReverseEngineerJavaWizard.finishPage(ReverseEngineerJavaWizard.java:116)
at com.genuitec.eclipse.core.portability.NewElementWizard$2.run(NewElementWizard.java:105)
at org.eclipse.jdt.internal.core.BatchOperation.executeOperation(BatchOperation.java:39)
at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:728)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800)
at org.eclipse.jdt.core.JavaCore.run(JavaCore.java:4694)
at org.eclipse.jdt.internal.ui.actions.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:106)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:944)
at com.genuitec.eclipse.core.portability.NewElementWizard.performFinish(NewElementWizard.java:112)
at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:752)
at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:373)
at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:228)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1176)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3493)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3112)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
at org.eclipse.jface.window.Window.open(Window.java:801)
at com.genuitec.eclipse.uml.action.UMLImportSourcesActionDelegate$1$1.run(UMLImportSourcesActionDelegate.java:72)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3468)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3115)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
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:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
at org.eclipse.equinox.launcher.Main.main(Main.java:1287)
support-ram - Jul 13, 2010 - 11:18 AM
Post subject: RE: Reverse Engineer UML from Java: Creation of element fail
MyEclipseUser2010,

I am unable to reproduce this issue using a class that contains a list.
Are you getting the same error using both UML1&UML2 models.
Can you share a sample project which replicates this issue.

You can send a mail to support@myeclipseide.com. Please add ATTN:RAM in the subject and refer to this thread.
edwardmaccarthy - May 16, 2011 - 08:31 PM
Post subject: Getting same error
I am getting the same error on Windows XP, running MyEclipse 9. Is there a solution yet?

MyEclipse Enterprise Workbench

Version: 9.0
Build id: 9.0-20110318
edwardmaccarthy - May 16, 2011 - 08:52 PM
Post subject: RE: Getting same error
edwardmaccarthy wrote:
I am getting the same error on Windows XP, running MyEclipse 9. Is there a solution yet?

MyEclipse Enterprise Workbench

Version: 9.0
Build id: 9.0-20110318
When I tried to close the file that I had half created, I got an error message in a dialog box:
"Error saving: null"
edwardmaccarthy - May 16, 2011 - 09:13 PM
Post subject: RE: Getting same error
edwardmaccarthy wrote:
edwardmaccarthy wrote:
I am getting the same error on Windows XP, running MyEclipse 9. Is there a solution yet?

MyEclipse Enterprise Workbench

Version: 9.0
Build id: 9.0-20110318
When I tried to close the file that I had half created, I got an error message in a dialog box:
"Error saving: null"
Full text of the error message is:
"A problem occurred while saving: "null".
Your file might be corrupted.
Please file a bug report at www.myeclipseide.com
edwardmaccarthy - May 16, 2011 - 09:30 PM
Post subject: Re: RE: Getting same error
edwardmaccarthy wrote:
edwardmaccarthy wrote:
edwardmaccarthy wrote:
I am getting the same error on Windows XP, running MyEclipse 9. Is there a solution yet?

MyEclipse Enterprise Workbench

Version: 9.0
Build id: 9.0-20110318
When I tried to close the file that I had half created, I got an error message in a dialog box:
"Error saving: null"
Full text of the error message is:
A problem occurred while saving: "null".
Your file might be corrupted.
Please file a bug report at www.myeclipseide.com


Funny, it works after a restart of MyEclipse. Please let me know if there is a fix available.
support-swapna - May 17, 2011 - 04:42 AM
Post subject: RE: Re: RE: Getting same error
edwardmaccarthy,

Sorry that you ran into this issue.

1) Can you give detail steps right from creating a java class to the point where you got the null pointer exception for me to be able to replicate it at my end ?

2) Clear the contents of the .log file which is located at <workspace dir>/.metadata/.log. Replicate the issue and copy paste the errors logged in the .log file here.
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