Mapped FBs might not have a resource

[bwiesmayr]

We have a prototype implementation for the 1499 extension on communication. Blocks that are named COMM_MESSAGE_something are mapped to Segments and not to Devices. Unfortunately, this breaks my control application as soon as I edit any of these types - the update is broken. Maybe it would be an option to return for these elements (they have a dedicated model element) the segment instead of the resource.

Unhandled event loop exception
Cannot invoke "org.eclipse.fordiac.ide.model.libraryElement.Resource.getFBNetwork()" because the return value of "org.eclipse.fordiac.ide.model.libraryElement.FBNetworkElement.getResource()" is null
  java.lang.NullPointerException: Cannot invoke "org.eclipse.fordiac.ide.model.libraryElement.Resource.getFBNetwork()" because the return value of "org.eclipse.fordiac.ide.model.libraryElement.FBNetworkElement.getResource()" is null
  at org.eclipse.fordiac.ide.model.commands.change.AbstractUpdateFBNElementCommand.execute(AbstractUpdateFBNElementCommand.java:99)
  at org.eclipse.fordiac.ide.model.edit.TypeEntryAdapter.lambda$11(TypeEntryAdapter.java)
  at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(Unknown Source)
  at java.base/java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
  at java.base/java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
  at java.base/java.util.stream.ReferencePipeline$2$1.accept(Unknown Source)
  at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(Unknown Source)
  at java.base/java.util.stream.AbstractPipeline.copyInto(Unknown Source)
  at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
  at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(Unknown Source)
  at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(Unknown Source)
  at java.base/java.util.stream.AbstractPipeline.evaluate(Unknown Source)
  at java.base/java.util.stream.ReferencePipeline.forEach(Unknown Source)
  at org.eclipse.fordiac.ide.model.edit.TypeEntryAdapter.handleBlockTypeDependencyUpdate(TypeEntryAdapter.java:176)
  at org.eclipse.fordiac.ide.model.edit.TypeEntryAdapter.lambda$2(TypeEntryAdapter.java:139)
  at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:40)
  at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:132)
  at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4099)
  at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3715)
  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1151)
  at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
  at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1042)
  at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
  at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:639)
  at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
  at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:546)
  at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:173)
  at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
  at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208)
  at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:143)
  at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:109)
  at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:439)
  at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:271)
  at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(Unknown Source)
  at java.base/java.lang.reflect.Method.invoke(Unknown Source)
  at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:668)
  at org.eclipse.equinox.launcher.Main.basicRun(Main.java:605)
  at org.eclipse.equinox.launcher.Main.run(Main.java:1481)