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via GitHub by NumberFourAG
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java.lang.NullPointerException: 	at eu.numberfour.n4js.validation.validators.N4JSAccessModifierValidator.polyfilledOrOwnCtor(N4JSAccessModifierValidator.java:614)	at eu.numberfour.n4js.validation.validators.N4JSAccessModifierValidator.filterFieldsInitializedViaSpecConstructor(N4JSAccessModifierValidator.java:505)	at eu.numberfour.n4js.validation.validators.N4JSAccessModifierValidator.checkFieldFinalInitialization(N4JSAccessModifierValidator.java:470)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at org.eclipse.xtext.validation.AbstractDeclarativeValidator$MethodWrapper.invoke(AbstractDeclarativeValidator.java:118)	at eu.numberfour.n4js.validation.N4JSValidator$1.invoke(N4JSValidator.java:96)	at org.eclipse.xtext.validation.AbstractDeclarativeValidator.internalValidate(AbstractDeclarativeValidator.java:312)	at org.eclipse.xtext.validation.AbstractInjectableValidator.validate(AbstractInjectableValidator.java:71)	at org.eclipse.xtext.validation.CompositeEValidator.validate(CompositeEValidator.java:151)	at org.eclipse.emf.ecore.util.Diagnostician.doValidate(Diagnostician.java:171)	at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:158)	at eu.numberfour.n4js.utils.validation.PrePostDiagnostician.validate(PrePostDiagnostician.java:56)	at org.eclipse.emf.ecore.util.Diagnostician.doValidateContents(Diagnostician.java:181)	at org.eclipse.xtext.validation.CancelableDiagnostician.doValidateContents(CancelableDiagnostician.java:70)	at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:161)	at eu.numberfour.n4js.utils.validation.PrePostDiagnostician.validate(PrePostDiagnostician.java:56)	at org.eclipse.emf.ecore.util.Diagnostician.doValidateContents(Diagnostician.java:181)	at org.eclipse.xtext.validation.CancelableDiagnostician.doValidateContents(CancelableDiagnostician.java:70)	at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:161)	at eu.numberfour.n4js.utils.validation.PrePostDiagnostician.validate(PrePostDiagnostician.java:56)	at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:120)	at org.eclipse.xtext.validation.ResourceValidatorImpl.validate(ResourceValidatorImpl.java:146)	at eu.numberfour.n4js.validation.N4JSResourceValidator.validate(N4JSResourceValidator.java:57)	at org.eclipse.xtext.validation.ResourceValidatorImpl.validate(ResourceValidatorImpl.java:90)	at eu.numberfour.n4js.ui.validation.ManifestAwareResourceValidator.validate(ManifestAwareResourceValidator.java:43)	at eu.numberfour.n4js.validation.helper.IssuesProvider.get(IssuesProvider.java:59)	at eu.numberfour.n4js.validation.helper.IssuesProvider.get(IssuesProvider.java:1)	at org.eclipse.xtext.util.OnChangeEvictingCache.get(OnChangeEvictingCache.java:77)	at eu.numberfour.n4js.resource.N4JSCache.getOrElseUpdateIssues(N4JSCache.java:77)	at eu.numberfour.n4js.ui.labeling.helper.ImageDescriptionHelper.getOrElseUpdateSummary(ImageDescriptionHelper.java:387)	at eu.numberfour.n4js.ui.labeling.helper.ImageDescriptionHelper.getMaxSeverityAtOrBelow(ImageDescriptionHelper.java:368)	at eu.numberfour.n4js.ui.labeling.helper.ImageDescriptionHelper.createValidationAwareImageDescriptor(ImageDescriptionHelper.java:297)	at eu.numberfour.n4js.ui.labeling.helper.ImageCalculationHelper._dispatchDoGetImage(ImageCalculationHelper.java:433)	at eu.numberfour.n4js.ui.labeling.helper.ImageCalculationHelper.dispatchDoGetImage(ImageCalculationHelper.java:505)	at eu.numberfour.n4js.ui.labeling.N4JSLabelProvider.doGetImage(N4JSLabelProvider.java:120)	at eu.numberfour.n4js.ui.labeling.N4JSLabelProvider.doGetImage(N4JSLabelProvider.java:1)	at org.eclipse.xtext.ui.label.AbstractLabelProvider.getImage(AbstractLabelProvider.java:49)	at org.eclipse.xtext.ui.editor.outline.impl.DefaultOutlineTreeProvider._image(DefaultOutlineTreeProvider.java:263)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.java:296)	at org.eclipse.xtext.ui.editor.outline.impl.DefaultOutlineTreeProvider._createNode(DefaultOutlineTreeProvider.java:153)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.java:296)	at org.eclipse.xtext.ui.editor.outline.impl.DefaultOutlineTreeProvider.createNode(DefaultOutlineTreeProvider.java:142)	at org.eclipse.xtext.ui.editor.outline.impl.DefaultOutlineTreeProvider._createChildren(DefaultOutlineTreeProvider.java:118)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.java:296)	at org.eclipse.xtext.ui.editor.outline.impl.DefaultOutlineTreeProvider.createChildren(DefaultOutlineTreeProvider.java:114)	at org.eclipse.xtext.ui.editor.outline.impl.AbstractOutlineNode$1.process(AbstractOutlineNode.java:102)	at org.eclipse.xtext.ui.editor.outline.impl.AbstractOutlineNode$1.process(AbstractOutlineNode.java:1)	at org.eclipse.xtext.util.concurrent.IUnitOfWork$Void.exec(IUnitOfWork.java:37)	at org.eclipse.xtext.ui.editor.outline.impl.DocumentRootNode$1.exec(DocumentRootNode.java:63)	at org.eclipse.xtext.ui.editor.outline.impl.DocumentRootNode$1.exec(DocumentRootNode.java:1)	at org.eclipse.xtext.resource.OutdatedStateManager.exec(OutdatedStateManager.java:121)	at org.eclipse.xtext.ui.editor.model.XtextDocument$XtextDocumentLocker.internalReadOnly(XtextDocument.java:520)	at org.eclipse.xtext.ui.editor.model.XtextDocument$XtextDocumentLocker.readOnly(XtextDocument.java:492)	at org.eclipse.xtext.ui.editor.model.XtextDocument.readOnly(XtextDocument.java:133)	at org.eclipse.xtext.ui.editor.outline.impl.DocumentRootNode.readOnly(DocumentRootNode.java:59)	at org.eclipse.xtext.ui.editor.outline.impl.AbstractOutlineNode.getChildren(AbstractOutlineNode.java:99)	at org.eclipse.xtext.ui.editor.outline.impl.OutlineRefreshJob.restoreChildrenSelectionAndExpansion(OutlineRefreshJob.java:120)	at org.eclipse.xtext.ui.editor.outline.impl.OutlineRefreshJob$2.exec(OutlineRefreshJob.java:93)	at org.eclipse.xtext.ui.editor.outline.impl.OutlineRefreshJob$2.exec(OutlineRefreshJob.java:1)	at org.eclipse.xtext.util.concurrent.CancelableUnitOfWork.exec(CancelableUnitOfWork.java:26)	at org.eclipse.xtext.resource.OutdatedStateManager.exec(OutdatedStateManager.java:121)	at org.eclipse.xtext.ui.editor.model.XtextDocument$XtextDocumentLocker.internalReadOnly(XtextDocument.java:520)	at org.eclipse.xtext.ui.editor.model.XtextDocument$XtextDocumentLocker.readOnly(XtextDocument.java:492)	at org.eclipse.xtext.ui.editor.model.XtextDocument.readOnly(XtextDocument.java:133)	at org.eclipse.xtext.ui.editor.outline.impl.OutlineRefreshJob.internalRefreshOutlineModel(OutlineRefreshJob.java:89)	at org.eclipse.xtext.ui.editor.outline.impl.OutlineRefreshJob.refreshOutlineModel(OutlineRefreshJob.java:73)	at org.eclipse.xtext.ui.editor.outline.impl.OutlineRefreshJob.run(OutlineRefreshJob.java:55)	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)