After adding "." in a builder, the previous expression goes red and no member is shown in intellisense

[provide a description of the issue]

Environment

• Operating System: fedora 33
• JDK version: 11.0.9
• Visual Studio Code version: 1.55.2
• Java extension version: 0.77

Steps To Reproduce

1. On a builder expression seems fine, but when I go to add a new part of the builder adding a . , it marks previous expression as wrong and no member is shown

[Please attach a sample project reproducing the error]
Please attach logs
[Error - 12:33:04] Request codeLens/resolve failed.
Message: Internal error.
Code: -32603
java.util.concurrent.CompletionException: java.lang.NullPointerException
at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:314)
at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:319)
at java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:645)
at java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:479)
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)
Caused by: java.lang.NullPointerException
at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.copy(ReferenceExpression.java:155)
at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.cachedResolvedCopy(ReferenceExpression.java:972)
at org.eclipse.jdt.internal.compiler.ast.ReferenceExpression.resolveExpressionExpecting(ReferenceExpression.java:1017)
at org.eclipse.jdt.internal.compiler.lookup.ConstraintExpressionFormula.reduceReferenceExpressionCompatibility(ConstraintExpressionFormula.java:265)
at org.eclipse.jdt.internal.compiler.lookup.ConstraintExpressionFormula.reduce(ConstraintExpressionFormula.java:221)
at org.eclipse.jdt.internal.compiler.lookup.BoundSet.reduceOneConstraint(BoundSet.java:985)
at org.eclipse.jdt.internal.compiler.lookup.InferenceContext18.reduceAndIncorporate(InferenceContext18.java:1124)
at org.eclipse.jdt.internal.compiler.lookup.InferenceContext18.lambda$2(InferenceContext18.java:602)
at org.eclipse.jdt.internal.compiler.lookup.InferenceContext18.collectingInnerBounds(InferenceContext18.java:535)
at org.eclipse.jdt.internal.compiler.lookup.InferenceContext18.addJDK_8153748ConstraintsFromFunctionalExpr(InferenceContext18.java:602)
at org.eclipse.jdt.internal.compiler.lookup.InferenceContext18.addJDK_8153748ConstraintsFromExpression(InferenceContext18.java:571)
at org.eclipse.jdt.internal.compiler.lookup.InferenceContext18.addJDK_8153748ConstraintsFromInvocation(InferenceContext18.java:556)
at org.eclipse.jdt.internal.compiler.lookup.InferenceContext18.inferInvocationType(InferenceContext18.java:421)
at org.eclipse.jdt.internal.compiler.lookup.ParameterizedGenericMethodBinding.computeCompatibleMethod18(ParameterizedGenericMethodBinding.java:271)
at org.eclipse.jdt.internal.compiler.lookup.ParameterizedGenericMethodBinding.computeCompatibleMethod(ParameterizedGenericMethodBinding.java:92)
at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:841)
at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:798)
at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod0(Scope.java:1756)
at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod(Scope.java:1657)
at org.eclipse.jdt.internal.compiler.lookup.Scope.getMethod(Scope.java:3045)
at org.eclipse.jdt.internal.compiler.ast.MessageSend.findMethodBinding(MessageSend.java:1017)
at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:838)
at org.eclipse.jdt.internal.compiler.ast.CastExpression.resolveType(CastExpression.java:628)
at org.eclipse.jdt.internal.compiler.ast.LocalDeclaration.resolve(LocalDeclaration.java:390)
at org.eclipse.jdt.internal.compiler.ast.LocalDeclaration.resolve(LocalDeclaration.java:259)
at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:661)
at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:362)
at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:570)
at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1493)
at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1618)
at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve(CompilationUnitDeclaration.java:662)
at org.eclipse.jdt.internal.core.hierarchy.HierarchyResolver.resolve(HierarchyResolver.java:875)
at org.eclipse.jdt.internal.core.hierarchy.HierarchyResolver.resolve(HierarchyResolver.java:672)
at org.eclipse.jdt.internal.core.hierarchy.HierarchyBuilder.buildSupertypes(HierarchyBuilder.java:129)
at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.build(IndexBasedHierarchyBuilder.java:171)
at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.compute(TypeHierarchy.java:323)
at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.refresh(TypeHierarchy.java:1319)
at org.eclipse.jdt.internal.core.CreateTypeHierarchyOperation.executeOperation(CreateTypeHierarchyOperation.java:94)
at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:740)
at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:806)
at org.eclipse.jdt.internal.core.SourceType.newSupertypeHierarchy(SourceType.java:858)
at org.eclipse.jdt.internal.core.SourceType.newSupertypeHierarchy(SourceType.java:809)
at org.eclipse.jdt.internal.core.search.IndexSelector.getFocusedElementsAndTypes(IndexSelector.java:165)
at org.eclipse.jdt.internal.core.search.IndexSelector.canSeeFocus(IndexSelector.java:72)
at org.eclipse.jdt.internal.core.search.matching.MatchLocator.workingCopiesThatCanSeeFocus(MatchLocator.java:245)
at org.eclipse.jdt.internal.core.search.matching.MatchLocator.addWorkingCopies(MatchLocator.java:201)
at org.eclipse.jdt.internal.core.search.BasicSearchEngine.findMatches(BasicSearchEngine.java:249)
at org.eclipse.jdt.internal.core.search.BasicSearchEngine.search(BasicSearchEngine.java:601)
at org.eclipse.jdt.core.search.SearchEngine.search(SearchEngine.java:670)
at org.eclipse.jdt.ls.core.internal.handlers.CodeLensHandler.findReferences(CodeLensHandler.java:147)
at org.eclipse.jdt.ls.core.internal.handlers.CodeLensHandler.resolve(CodeLensHandler.java:100)
at org.eclipse.jdt.ls.core.internal.handlers.JDTLanguageServer.lambda$16(JDTLanguageServer.java:674)
at org.eclipse.jdt.ls.core.internal.BaseJDTLanguageServer.lambda$0(BaseJDTLanguageServer.java:75)
at java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:642)
... 6 more

Current Result

Expected Result

Additional Informations

Commencez par créer une reproduction minimale d’une expression builder Java avec l’environnement décrit, composé de Fedora 33, JDK 11, VS Code 1.55.2 et Java extension 0.77. Examinez le chemin CodeLensHandler.resolve/findReferences ainsi que la JDT ReferenceExpression NullPointerException signalée ; le travail est terminé lorsqu’ajouter un point ne marque plus l’expression précédente comme invalide, que la complétion des membres apparaît et que la requête CodeLens n’échoue pas.