Error when re-importing a model

[Former Member]

I have a coworker who is trying to reimport a model in his Web Dynpro project. He is getting the following exception (full stack trace below):

org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.NullPointerException)

We've tried removing the .registry file in the .metadata folder and we've tried removing the .metadata folder completely. We upgraded him to the same version of NDS that I'm using (7.0.13), and he's still getting the same error, even though I can reimport it with no problems.

Any ideas?

Full stack:

org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.NullPointerException)

at org.eclipse.swt.SWT.error(SWT.java:2330)

at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:101)

at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:1999)

at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1733)

at org.eclipse.jface.operation.ModalContext$ModalContextThread.block(ModalContext.java:136)

at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:261)

at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:758)

at com.sap.ide.jcb.core.wizardpages.SAPLogonPage.connectToServer(SAPLogonPage.java:1699)

at com.sap.ide.jcb.core.wizardpages.SAPLogonPage.performFinish(SAPLogonPage.java:1805)

at com.sap.ide.webdynpro.modeleditor.wizards.model.creation.ModelWizard.initializeReimporter(ModelWizard.java:1410)

at com.sap.ide.webdynpro.modeleditor.wizards.model.creation.ModelWizard.performPostSapLogonPageForReimport(ModelWizard.java:1433)

at com.sap.ide.webdynpro.modeleditor.wizards.model.creation.ModelDialog.nextPressed(ModelDialog.java:85)

at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:316)

at org.eclipse.jface.dialogs.Dialog$1.widgetSelected(Dialog.java:423)

at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:89)

at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:81)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:840)

at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2022)

at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1729)

at org.eclipse.jface.window.Window.runEventLoop(Window.java:583)

at org.eclipse.jface.window.Window.open(Window.java:563)

at com.sap.ide.webdynpro.modeleditor.ModelEditorCallback.reimportModel(ModelEditorCallback.java:218)

at com.sap.ide.webdynpro.service.modeleditor.ModelService.reImportModel(ModelService.java:207)

at com.sap.ide.webdynpro.service.modeleditor.ServiceWithUI.reImportModel(ServiceWithUI.java:120)

at com.sap.ide.webdynpro.tsmodel.application.actions.ReimportModelAction.run(ReimportModelAction.java:11)

at com.sap.ide.webdynpro.projectbrowser.actions.PBReimportModelAction.run(PBReimportModelAction.java:77)

at com.sap.ide.webdynpro.projectbrowser.actions.PBDevelopmentObjectAction.runInternal(PBDevelopmentObjectAction.java:80)

at com.sap.ide.webdynpro.projectbrowser.actions.PBDevelopmentObjectAction.run(PBDevelopmentObjectAction.java:61)

at com.tssap.selena.model.extension.action.SelenaActionCollector$GenericElementActionWrapper.run(SelenaActionCollector.java:224)

at com.tssap.util.ui.menu.MenuFactory$MuSiAction.saveRunAction(MenuFactory.java:1425)

at com.tssap.util.ui.menu.MenuFactory$MuSiAction.run(MenuFactory.java:1407)

at com.tssap.util.ui.menu.MenuFactory$DelegateAction.processInternal(MenuFactory.java:616)

at com.tssap.util.ui.menu.MenuFactory$DelegateAction.access$100(MenuFactory.java:586)

at com.tssap.util.ui.menu.MenuFactory$DelegateAction$BusyProcessWorker.run(MenuFactory.java:716)

at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69)

at com.tssap.util.ui.menu.MenuFactory$DelegateAction.process(MenuFactory.java:610)

at com.tssap.util.ui.menu.internal.MenuListenerFactory$ProcessAdapter.widgetSelected(MenuListenerFactory.java:172)

at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:89)

at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:81)

at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:840)

at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2022)

at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1729)

at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1402)

at org.eclipse.ui.internal.Workbench.run(Workbench.java:1385)

at com.tssap.util.startup.WBLauncher.run(WBLauncher.java:79)

at org.eclipse.core.internal.boot.InternalBootLoader.run(InternalBootLoader.java:858)

at org.eclipse.core.boot.BootLoader.run(BootLoader.java:461)

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:324)

at com.sap.ide.eclipse.startup.Main.basicRun(Main.java:291)

at com.sap.ide.eclipse.startup.Main.run(Main.java:789)

at com.sap.ide.eclipse.startup.Main.main(Main.java:607)

[snehal_kendre · Accepted solution]

Hi Jennifer,

Check your plugins for org.eclipse.swt.win32_2.1.2. This problem may arise due to missing plugins.There is one swt .dll file and swt.jar file require for this operation to perform even you upgrade NWDS then also chek it.

[Former Member · Accepted solution]

He has the plugin, including the .dll file and the swt.jar file.

[Former Member]

Hi,

You have re-imported the model. This means that once you haev to restart your server. Just Restart it. Repair and Rebuild your Project. Try to import SWT.jar file again and then try.

That would surely help you.

Regards,

ROSHAN