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java.lang.NullPointerException [message #1798378]

Fri, 16 November 2018 08:26

Eclipse User

Hello,

I've upgraded 4DIAC to 1.10.0.RC2.

When I want to save my changes in an application I get a Java NullPointer Exception:

!ENTRY org.eclipse.ui 2 0 2018-11-16 14:23:51.894
!MESSAGE Save Failed
!STACK 0
java.lang.NullPointerException
at org.eclipse.fordiac.ide.model.dataexport.FBNetworkExporter.addFBNetworkElements(FBNetworkExporter.java:73)
at org.eclipse.fordiac.ide.model.dataexport.FBNetworkExporter.createFBNetworkElement(FBNetworkExporter.java:54)
at org.eclipse.fordiac.ide.model.dataexport.SystemExporter.addApplication(SystemExporter.java:75)
at org.eclipse.fordiac.ide.model.dataexport.SystemExporter.saveSystem(SystemExporter.java:57)
at org.eclipse.fordiac.ide.systemmanagement.SystemManager.saveSystem(SystemManager.java:393)
at org.eclipse.fordiac.ide.systemconfiguration.editor.SystemConfigurationEditor.doSave(SystemConfigurationEditor.java:77)
at org.eclipse.ui.internal.SaveableHelper.lambda$0(SaveableHelper.java:157)
at org.eclipse.ui.internal.SaveableHelper.lambda$3(SaveableHelper.java:274)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:440)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:356)
at org.eclipse.ui.internal.WorkbenchWindow.lambda$3(WorkbenchWindow.java:2254)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:72)
at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:2252)
at org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOperation(SaveableHelper.java:281)
at org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOperation(SaveableHelper.java:262)
at org.eclipse.ui.internal.SaveableHelper.savePart(SaveableHelper.java:161)
at org.eclipse.ui.internal.WorkbenchPage.saveSaveable(WorkbenchPage.java:3957)
at org.eclipse.ui.internal.WorkbenchPage.saveEditor(WorkbenchPage.java:3971)
at org.eclipse.ui.internal.handlers.SaveHandler.execute(SaveHandler.java:57)
at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:294)
at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:96)
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.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58)
at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:320)
at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:254)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:164)
at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:156)
at org.eclipse.core.commands.Command.executeWithChecks(Command.java:497)
at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:490)
at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:207)
at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.executeCommand(KeyBindingDispatcher.java:308)
at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.press(KeyBindingDispatcher.java:582)
at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.processKeyEvent(KeyBindingDispatcher.java:651)
at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.filterKeySequenceBindings(KeyBindingDispatcher.java:441)
at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.access$2(KeyBindingDispatcher.java:384)
at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher$KeyDownFilter.handleEvent(KeyBindingDispatcher.java:96)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1193)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1054)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1079)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1064)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1106)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1102)
at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1489)
at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:4888)
at org.eclipse.swt.widgets.Canvas.WM_CHAR(Canvas.java:353)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4768)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:348)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4784)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2309)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3559)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1173)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1062)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:628)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:563)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:151)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:155)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:199)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:391)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:246)
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.equinox.launcher.Main.invokeFramework(Main.java:659)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:595)
at org.eclipse.equinox.launcher.Main.run(Main.java:1501)

Only when I'm saving an application.
Saving in function blocks is working.

Can you please help me to figure out the problem?

[Updated on: Fri, 16 November 2018 08:28] by Moderator

Re: java.lang.NullPointerException [message #1798386 is a reply to message #1798378]

Fri, 16 November 2018 09:52

Eclipse User

Hi,

have you imported an old project? Could it be that you have an FB in your application where the type is not in your typelib?

Alois

Re: java.lang.NullPointerException [message #1798387 is a reply to message #1798386]

Fri, 16 November 2018 10:13

Eclipse User

Hello,

yes of course! That was the problem!

Thank you for your quick reply!

Best,
Wolfgang

[Updated on: Mon, 19 November 2018 03:18] by Moderator

Re: java.lang.NullPointerException [message #1798438 is a reply to message #1798387]

Mon, 19 November 2018 03:18

Eclipse User

May you can help me with this error, which occurrs when I want to build forte with visual studio:

------ Erstellen gestartet: Projekt: FORTE_LITE, Konfiguration: Release Win32 ------
4> FORTE_LITE.vcxproj -> C:\Users\softworks\Desktop\meoFORTE\FORTE_Sources\bin\meoLogic\src\FORTE_LITE.dir\Release\FORTE_LITE.lib
5>------ Erstellen gestartet: Projekt: forte, Konfiguration: Release Win32 ------
5>forteinit.obj : error LNK2005: "private: static unsigned char const E_RESTART::csmCOLDID" (?csmCOLDID@E_RESTART@@0EB) ist bereits in E_RESTART.obj definiert.
5>forteinit.obj : error LNK2005: "private: static unsigned char const E_RESTART::csmWARMID" (?csmWARMID@E_RESTART@@0EB) ist bereits in E_RESTART.obj definiert.
5>forteinit.obj : error LNK2005: "private: static unsigned char const E_RESTART::csmSTOPID" (?csmSTOPID@E_RESTART@@0EB) ist bereits in E_RESTART.obj definiert.
5>C:\Users\softworks\Desktop\meoFORTE\FORTE_Sources\bin\meoLogic\src\Release\forte.exe : fatal error LNK1169: Mindestens ein mehrfach definiertes Symbol gefunden.
========== Erstellen: 4 erfolgreich, Fehler bei 1, 3 aktuell, 0 übersprungen ==========

Re: java.lang.NullPointerException [message #1798497 is a reply to message #1798387]

Mon, 19 November 2018 16:52

Eclipse User

I had a second look on the issue. I recreated the situation because I found it very bad that 4diac IDE is not saving when a type is missing. However I could not reproduce the problem. When I have a system with a missing type it is nicely saved. However reopening it again made issues. I just pushed a commit that should help a bit here, making 4diac IDE a bit more robust.

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