Bug 546120 - editing lambda in interface default method froze IDE
Summary: editing lambda in interface default method froze IDE
Status: NEW
Alias: None
Product: JDT
Classification: Eclipse Project
Component: Core (show other bugs)
Version: 4.11   Edit
Hardware: PC Windows 10
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: JDT-Core-Inbox CLA
QA Contact:
URL:
Whiteboard: stalebug
Keywords:
Depends on:
Blocks:
 
Reported: 2019-04-04 11:34 EDT by Garret Wilson CLA
Modified: 2023-04-20 09:12 EDT (History)
0 users

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Description Garret Wilson CLA 2019-04-04 11:34:09 EDT 
On Windows 10 I'm using Open JDK 11 and 2019-03 M3 (4.11 M3). (I'm using this version because Bug 545415 breaks renaming in later versions, and 2019-06 M1, which supposedly will fix this problem, hasn't been released yet.)

I have something like this in `MyInterface`

    public interface MyInterface {
      public default findFoo() { return callSomeOtherMethod();}
      public default determineBar() {
        return findFoo().or(this::findName)
            .orElseGet(() -> getBarFromSomewhereElse());
      }
    }

I was just thinking how concise and elegant this was, but Eclipse suddenly showed an error for the `.or(this::findName)` part. The red check in the margin said something about being unable to find the `this` variable.

So I thought maybe Java doesn't support method references using `this` in interfaces, and I changed it from `.or(this::findName)` to `.or(()->findName())`.

Suddenly Eclipse froze. The screen was covered with an overlay and I got the turning circle icon. I had to kill the process. After restarting Eclipse, I was able to use `.or(this::findName)` with no problem. No errors were in the log from around this time.

But as I was moving the code around to try to reproduce this, I got another series of errors, which I provide below, from earliest to latest. _Note that several of the error messages are different; they are not all the same_

!ENTRY org.eclipse.jface.text 2 0 2019-04-04 12:20:25.606
!MESSAGE Duplicate template id: 'org.eclipse.wst.xslt.templates.xpath.boolean'

!ENTRY org.eclipse.jdt.core 4 4 2019-04-04 12:20:46.141
!MESSAGE Exception occurred during problem detection:
----------------------------------- SOURCE BEGIN -------------------------------------
[code removed]
----------------------------------- SOURCE END -------------------------------------
!STACK 0
java.lang.NullPointerException
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.copy(ReferenceExpression.java:154)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.cachedResolvedCopy(ReferenceExpression.java:948)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.isCompatibleWith(ReferenceExpression.java:1231)
	at org.eclipse.jdt.internal.compiler.lookup.PolyTypeBinding.isCompatibleWith(PolyTypeBinding.java:43)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4940)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4907)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:867)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:794)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod0(Scope.java:1750)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod(Scope.java:1651)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getMethod(Scope.java:2934)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.findMethodBinding(MessageSend.java:954)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:775)
	at org.eclipse.jdt.internal.compiler.ast.ReturnStatement.resolve(ReturnStatement.java:349)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:641)
	at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:316)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:551)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1262)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1387)
	at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve(CompilationUnitDeclaration.java:652)
	at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:1055)
	at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:272)
	at org.eclipse.jdt.internal.core.CompilationUnit.buildStructure(CompilationUnit.java:194)
	at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:268)
	at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:596)
	at org.eclipse.jdt.internal.core.CompilationUnit.makeConsistent(CompilationUnit.java:1145)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.makeConsistent(ReconcileWorkingCopyOperation.java:173)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:94)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:736)
	at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:802)
	at org.eclipse.jdt.internal.core.CompilationUnit.reconcile(CompilationUnit.java:1322)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:131)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.access$0(JavaReconcilingStrategy.java:113)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy$1.run(JavaReconcilingStrategy.java:93)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:90)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:157)
	at org.eclipse.jdt.internal.ui.text.CompositeReconcilingStrategy.reconcile(CompositeReconcilingStrategy.java:92)
	at org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.reconcile(JavaCompositeReconcilingStrategy.java:107)
	at org.eclipse.jface.text.reconciler.MonoReconciler.process(MonoReconciler.java:76)
	at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:210)

!ENTRY org.eclipse.jdt.ui 4 2 2019-04-04 12:20:46.149
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.jdt.ui".
!STACK 1
Java Model Exception: java.lang.NullPointerException
	at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:324)
	at org.eclipse.jdt.internal.core.CompilationUnit.buildStructure(CompilationUnit.java:194)
	at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:268)
	at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:596)
	at org.eclipse.jdt.internal.core.CompilationUnit.makeConsistent(CompilationUnit.java:1145)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.makeConsistent(ReconcileWorkingCopyOperation.java:173)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:94)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:736)
	at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:802)
	at org.eclipse.jdt.internal.core.CompilationUnit.reconcile(CompilationUnit.java:1322)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:131)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.access$0(JavaReconcilingStrategy.java:113)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy$1.run(JavaReconcilingStrategy.java:93)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:90)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:157)
	at org.eclipse.jdt.internal.ui.text.CompositeReconcilingStrategy.reconcile(CompositeReconcilingStrategy.java:92)
	at org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.reconcile(JavaCompositeReconcilingStrategy.java:107)
	at org.eclipse.jface.text.reconciler.MonoReconciler.process(MonoReconciler.java:76)
	at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:210)
Caused by: java.lang.NullPointerException
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.copy(ReferenceExpression.java:154)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.cachedResolvedCopy(ReferenceExpression.java:948)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.isCompatibleWith(ReferenceExpression.java:1231)
	at org.eclipse.jdt.internal.compiler.lookup.PolyTypeBinding.isCompatibleWith(PolyTypeBinding.java:43)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4940)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4907)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:867)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:794)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod0(Scope.java:1750)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod(Scope.java:1651)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getMethod(Scope.java:2934)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.findMethodBinding(MessageSend.java:954)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:775)
	at org.eclipse.jdt.internal.compiler.ast.ReturnStatement.resolve(ReturnStatement.java:349)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:641)
	at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:316)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:551)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1262)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1387)
	at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve(CompilationUnitDeclaration.java:652)
	at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:1055)
	at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:272)
	... 19 more
Caused by: java.lang.NullPointerException
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.copy(ReferenceExpression.java:154)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.cachedResolvedCopy(ReferenceExpression.java:948)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.isCompatibleWith(ReferenceExpression.java:1231)
	at org.eclipse.jdt.internal.compiler.lookup.PolyTypeBinding.isCompatibleWith(PolyTypeBinding.java:43)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4940)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4907)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:867)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:794)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod0(Scope.java:1750)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod(Scope.java:1651)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getMethod(Scope.java:2934)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.findMethodBinding(MessageSend.java:954)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:775)
	at org.eclipse.jdt.internal.compiler.ast.ReturnStatement.resolve(ReturnStatement.java:349)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:641)
	at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:316)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:551)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1262)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1387)
	at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve(CompilationUnitDeclaration.java:652)
	at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:1055)
	at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:272)
	at org.eclipse.jdt.internal.core.CompilationUnit.buildStructure(CompilationUnit.java:194)
	at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:268)
	at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:596)
	at org.eclipse.jdt.internal.core.CompilationUnit.makeConsistent(CompilationUnit.java:1145)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.makeConsistent(ReconcileWorkingCopyOperation.java:173)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:94)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:736)
	at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:802)
	at org.eclipse.jdt.internal.core.CompilationUnit.reconcile(CompilationUnit.java:1322)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:131)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.access$0(JavaReconcilingStrategy.java:113)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy$1.run(JavaReconcilingStrategy.java:93)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:90)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:157)
	at org.eclipse.jdt.internal.ui.text.CompositeReconcilingStrategy.reconcile(CompositeReconcilingStrategy.java:92)
	at org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.reconcile(JavaCompositeReconcilingStrategy.java:107)
	at org.eclipse.jface.text.reconciler.MonoReconciler.process(MonoReconciler.java:76)
	at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:210)
!SUBENTRY 1 org.eclipse.jdt.core 4 1005 2019-04-04 12:20:46.156
!MESSAGE java.lang.NullPointerException
!STACK 0
java.lang.NullPointerException
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.copy(ReferenceExpression.java:154)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.cachedResolvedCopy(ReferenceExpression.java:948)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.isCompatibleWith(ReferenceExpression.java:1231)
	at org.eclipse.jdt.internal.compiler.lookup.PolyTypeBinding.isCompatibleWith(PolyTypeBinding.java:43)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4940)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4907)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:867)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:794)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod0(Scope.java:1750)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod(Scope.java:1651)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getMethod(Scope.java:2934)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.findMethodBinding(MessageSend.java:954)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:775)
	at org.eclipse.jdt.internal.compiler.ast.ReturnStatement.resolve(ReturnStatement.java:349)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:641)
	at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:316)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:551)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1262)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1387)
	at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve(CompilationUnitDeclaration.java:652)
	at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:1055)
	at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:272)
	at org.eclipse.jdt.internal.core.CompilationUnit.buildStructure(CompilationUnit.java:194)
	at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:268)
	at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:596)
	at org.eclipse.jdt.internal.core.CompilationUnit.makeConsistent(CompilationUnit.java:1145)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.makeConsistent(ReconcileWorkingCopyOperation.java:173)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:94)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:736)
	at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:802)
	at org.eclipse.jdt.internal.core.CompilationUnit.reconcile(CompilationUnit.java:1322)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:131)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.access$0(JavaReconcilingStrategy.java:113)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy$1.run(JavaReconcilingStrategy.java:93)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:90)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:157)
	at org.eclipse.jdt.internal.ui.text.CompositeReconcilingStrategy.reconcile(CompositeReconcilingStrategy.java:92)
	at org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.reconcile(JavaCompositeReconcilingStrategy.java:107)
	at org.eclipse.jface.text.reconciler.MonoReconciler.process(MonoReconciler.java:76)
	at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:210)
!SUBENTRY 1 org.eclipse.jdt.core 4 1005 2019-04-04 12:20:46.164
!MESSAGE java.lang.NullPointerException
!STACK 0
java.lang.NullPointerException
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.copy(ReferenceExpression.java:154)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.cachedResolvedCopy(ReferenceExpression.java:948)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.isCompatibleWith(ReferenceExpression.java:1231)
	at org.eclipse.jdt.internal.compiler.lookup.PolyTypeBinding.isCompatibleWith(PolyTypeBinding.java:43)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4940)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4907)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:867)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:794)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod0(Scope.java:1750)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod(Scope.java:1651)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getMethod(Scope.java:2934)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.findMethodBinding(MessageSend.java:954)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:775)
	at org.eclipse.jdt.internal.compiler.ast.ReturnStatement.resolve(ReturnStatement.java:349)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:641)
	at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:316)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:551)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1262)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1387)
	at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve(CompilationUnitDeclaration.java:652)
	at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:1055)
	at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:272)
	at org.eclipse.jdt.internal.core.CompilationUnit.buildStructure(CompilationUnit.java:194)
	at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:268)
	at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:596)
	at org.eclipse.jdt.internal.core.CompilationUnit.makeConsistent(CompilationUnit.java:1145)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.makeConsistent(ReconcileWorkingCopyOperation.java:173)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:94)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:736)
	at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:802)
	at org.eclipse.jdt.internal.core.CompilationUnit.reconcile(CompilationUnit.java:1322)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:131)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.access$0(JavaReconcilingStrategy.java:113)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy$1.run(JavaReconcilingStrategy.java:93)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:90)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:157)
	at org.eclipse.jdt.internal.ui.text.CompositeReconcilingStrategy.reconcile(CompositeReconcilingStrategy.java:92)
	at org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.reconcile(JavaCompositeReconcilingStrategy.java:107)
	at org.eclipse.jface.text.reconciler.MonoReconciler.process(MonoReconciler.java:76)
	at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:210)

!ENTRY org.eclipse.jdt.ui 4 0 2019-04-04 12:20:46.168
!MESSAGE Error in JDT Core during reconcile
!STACK 1
Java Model Exception: java.lang.NullPointerException
	at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:324)
	at org.eclipse.jdt.internal.core.CompilationUnit.buildStructure(CompilationUnit.java:194)
	at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:268)
	at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:596)
	at org.eclipse.jdt.internal.core.CompilationUnit.makeConsistent(CompilationUnit.java:1145)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.makeConsistent(ReconcileWorkingCopyOperation.java:173)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:94)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:736)
	at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:802)
	at org.eclipse.jdt.internal.core.CompilationUnit.reconcile(CompilationUnit.java:1322)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:131)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.access$0(JavaReconcilingStrategy.java:113)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy$1.run(JavaReconcilingStrategy.java:93)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:90)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:157)
	at org.eclipse.jdt.internal.ui.text.CompositeReconcilingStrategy.reconcile(CompositeReconcilingStrategy.java:92)
	at org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.reconcile(JavaCompositeReconcilingStrategy.java:107)
	at org.eclipse.jface.text.reconciler.MonoReconciler.process(MonoReconciler.java:76)
	at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:210)
Caused by: java.lang.NullPointerException
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.copy(ReferenceExpression.java:154)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.cachedResolvedCopy(ReferenceExpression.java:948)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.isCompatibleWith(ReferenceExpression.java:1231)
	at org.eclipse.jdt.internal.compiler.lookup.PolyTypeBinding.isCompatibleWith(PolyTypeBinding.java:43)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4940)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4907)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:867)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:794)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod0(Scope.java:1750)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod(Scope.java:1651)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getMethod(Scope.java:2934)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.findMethodBinding(MessageSend.java:954)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:775)
	at org.eclipse.jdt.internal.compiler.ast.ReturnStatement.resolve(ReturnStatement.java:349)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:641)
	at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:316)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:551)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1262)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1387)
	at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve(CompilationUnitDeclaration.java:652)
	at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:1055)
	at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:272)
	... 19 more
Caused by: java.lang.NullPointerException
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.copy(ReferenceExpression.java:154)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.cachedResolvedCopy(ReferenceExpression.java:948)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.isCompatibleWith(ReferenceExpression.java:1231)
	at org.eclipse.jdt.internal.compiler.lookup.PolyTypeBinding.isCompatibleWith(PolyTypeBinding.java:43)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4940)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4907)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:867)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:794)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod0(Scope.java:1750)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod(Scope.java:1651)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getMethod(Scope.java:2934)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.findMethodBinding(MessageSend.java:954)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:775)
	at org.eclipse.jdt.internal.compiler.ast.ReturnStatement.resolve(ReturnStatement.java:349)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:641)
	at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:316)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:551)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1262)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1387)
	at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve(CompilationUnitDeclaration.java:652)
	at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:1055)
	at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:272)
	at org.eclipse.jdt.internal.core.CompilationUnit.buildStructure(CompilationUnit.java:194)
	at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:268)
	at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:596)
	at org.eclipse.jdt.internal.core.CompilationUnit.makeConsistent(CompilationUnit.java:1145)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.makeConsistent(ReconcileWorkingCopyOperation.java:173)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:94)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:736)
	at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:802)
	at org.eclipse.jdt.internal.core.CompilationUnit.reconcile(CompilationUnit.java:1322)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:131)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.access$0(JavaReconcilingStrategy.java:113)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy$1.run(JavaReconcilingStrategy.java:93)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:90)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:157)
	at org.eclipse.jdt.internal.ui.text.CompositeReconcilingStrategy.reconcile(CompositeReconcilingStrategy.java:92)
	at org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.reconcile(JavaCompositeReconcilingStrategy.java:107)
	at org.eclipse.jface.text.reconciler.MonoReconciler.process(MonoReconciler.java:76)
	at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:210)
!SUBENTRY 1 org.eclipse.jdt.core 4 1005 2019-04-04 12:20:46.169
!MESSAGE java.lang.NullPointerException
!STACK 0
java.lang.NullPointerException
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.copy(ReferenceExpression.java:154)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.cachedResolvedCopy(ReferenceExpression.java:948)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.isCompatibleWith(ReferenceExpression.java:1231)
	at org.eclipse.jdt.internal.compiler.lookup.PolyTypeBinding.isCompatibleWith(PolyTypeBinding.java:43)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4940)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4907)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:867)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:794)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod0(Scope.java:1750)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod(Scope.java:1651)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getMethod(Scope.java:2934)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.findMethodBinding(MessageSend.java:954)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:775)
	at org.eclipse.jdt.internal.compiler.ast.ReturnStatement.resolve(ReturnStatement.java:349)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:641)
	at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:316)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:551)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1262)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1387)
	at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve(CompilationUnitDeclaration.java:652)
	at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:1055)
	at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:272)
	at org.eclipse.jdt.internal.core.CompilationUnit.buildStructure(CompilationUnit.java:194)
	at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:268)
	at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:596)
	at org.eclipse.jdt.internal.core.CompilationUnit.makeConsistent(CompilationUnit.java:1145)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.makeConsistent(ReconcileWorkingCopyOperation.java:173)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:94)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:736)
	at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:802)
	at org.eclipse.jdt.internal.core.CompilationUnit.reconcile(CompilationUnit.java:1322)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:131)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.access$0(JavaReconcilingStrategy.java:113)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy$1.run(JavaReconcilingStrategy.java:93)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:90)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:157)
	at org.eclipse.jdt.internal.ui.text.CompositeReconcilingStrategy.reconcile(CompositeReconcilingStrategy.java:92)
	at org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.reconcile(JavaCompositeReconcilingStrategy.java:107)
	at org.eclipse.jface.text.reconciler.MonoReconciler.process(MonoReconciler.java:76)
	at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:210)

!ENTRY org.eclipse.jdt.core.manipulation 4 2 2019-04-04 12:20:46.265
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.jdt.core.manipulation".
!STACK 0
java.lang.NullPointerException
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.copy(ReferenceExpression.java:154)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.cachedResolvedCopy(ReferenceExpression.java:948)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.isCompatibleWith(ReferenceExpression.java:1231)
	at org.eclipse.jdt.internal.compiler.lookup.PolyTypeBinding.isCompatibleWith(PolyTypeBinding.java:43)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4940)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4907)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:867)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:794)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod0(Scope.java:1750)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod(Scope.java:1651)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getMethod(Scope.java:2934)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.findMethodBinding(MessageSend.java:954)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:775)
	at org.eclipse.jdt.internal.compiler.ast.ReturnStatement.resolve(ReturnStatement.java:349)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:641)
	at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:316)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:551)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1262)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1387)
	at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve(CompilationUnitDeclaration.java:652)
	at org.eclipse.jdt.core.dom.CompilationUnitResolver.resolve(CompilationUnitResolver.java:1249)
	at org.eclipse.jdt.core.dom.CompilationUnitResolver.resolve(CompilationUnitResolver.java:714)
	at org.eclipse.jdt.core.dom.ASTParser.internalCreateAST(ASTParser.java:1212)
	at org.eclipse.jdt.core.dom.ASTParser.createAST(ASTParser.java:827)
	at org.eclipse.jdt.core.manipulation.CoreASTProvider$1.run(CoreASTProvider.java:271)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.jdt.core.manipulation.CoreASTProvider.createAST(CoreASTProvider.java:263)
	at org.eclipse.jdt.core.manipulation.CoreASTProvider.getAST(CoreASTProvider.java:196)
	at org.eclipse.jdt.core.manipulation.SharedASTProviderCore.getAST(SharedASTProviderCore.java:138)
	at org.eclipse.jdt.internal.ui.viewsupport.SelectionListenerWithASTManager$PartListenerGroup.calculateASTandInform(SelectionListenerWithASTManager.java:175)
	at org.eclipse.jdt.internal.ui.viewsupport.SelectionListenerWithASTManager$PartListenerGroup$3.run(SelectionListenerWithASTManager.java:160)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

!ENTRY org.eclipse.jdt.core.manipulation 4 0 2019-04-04 12:20:46.267
!MESSAGE Error in JDT Core during AST creation
!STACK 0
java.lang.NullPointerException
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.copy(ReferenceExpression.java:154)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.cachedResolvedCopy(ReferenceExpression.java:948)
	at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.isCompatibleWith(ReferenceExpression.java:1231)
	at org.eclipse.jdt.internal.compiler.lookup.PolyTypeBinding.isCompatibleWith(PolyTypeBinding.java:43)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4940)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.parameterCompatibilityLevel(Scope.java:4907)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:867)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:794)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod0(Scope.java:1750)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod(Scope.java:1651)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getMethod(Scope.java:2934)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.findMethodBinding(MessageSend.java:954)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:775)
	at org.eclipse.jdt.internal.compiler.ast.ReturnStatement.resolve(ReturnStatement.java:349)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:641)
	at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:316)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:551)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1262)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1387)
	at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve(CompilationUnitDeclaration.java:652)
	at org.eclipse.jdt.core.dom.CompilationUnitResolver.resolve(CompilationUnitResolver.java:1249)
	at org.eclipse.jdt.core.dom.CompilationUnitResolver.resolve(CompilationUnitResolver.java:714)
	at org.eclipse.jdt.core.dom.ASTParser.internalCreateAST(ASTParser.java:1212)
	at org.eclipse.jdt.core.dom.ASTParser.createAST(ASTParser.java:827)
	at org.eclipse.jdt.core.manipulation.CoreASTProvider$1.run(CoreASTProvider.java:271)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.jdt.core.manipulation.CoreASTProvider.createAST(CoreASTProvider.java:263)
	at org.eclipse.jdt.core.manipulation.CoreASTProvider.getAST(CoreASTProvider.java:196)
	at org.eclipse.jdt.core.manipulation.SharedASTProviderCore.getAST(SharedASTProviderCore.java:138)
	at org.eclipse.jdt.internal.ui.viewsupport.SelectionListenerWithASTManager$PartListenerGroup.calculateASTandInform(SelectionListenerWithASTManager.java:175)
	at org.eclipse.jdt.internal.ui.viewsupport.SelectionListenerWithASTManager$PartListenerGroup$3.run(SelectionListenerWithASTManager.java:160)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Comment 1 Eclipse Genie CLA 2021-03-25 08:54:45 EDT 
This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet.

If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.

--
The automated Eclipse Genie.
Comment 2 Eclipse Genie CLA 2023-04-20 09:12:04 EDT 
This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet.

If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.

--
The automated Eclipse Genie.