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

Bắt đầu bằng cách tạo một bản tái hiện tối thiểu của biểu thức builder trong Java bằng môi trường Fedora 33, JDK 11, VS Code 1.55.2 và Java extension 0.77 được mô tả. Kiểm tra đường dẫn CodeLensHandler.resolve/findReferences cùng với JDT ReferenceExpression NullPointerException đã được báo cáo; hoàn thành có nghĩa là việc thêm một dấu chấm không còn đánh dấu biểu thức trước đó là không hợp lệ, tính năng hoàn thành thành viên xuất hiện và yêu cầu CodeLens không bị lỗi.