(Java) Call hierarchy unavailable

[jrte]

Type: Bug

Right-click on a Java method name and "Show Call Hierarchy". No calls from or to the method are displayed. This occurs for any method in my workspace, regardless of how many calls into/out of the method exist in the project. Other operations on Java symbols are similarly hosed ("Go To Declaration/Reference/Type Declaration/Implementation/...,", "Find All References/Implementations").

Java Server Mode in the status bar reads: "Java: Background task - 0%" (forever).

Java Build Status (from Java terminal):

5830c3f5 Synchronizing projects [Done]
de2b951c Validate documents [Done]
237eb853 Publish Diagnostics [Done]
ff24c84c Background task [Done]
d398b79d Update classpath Job [Done]
fb0ecb38 Building [Done]
220bbc2b Reconciling... [Done]
da5af34f Background task [Done]
a80a5517 Building [Done]
030bfe81 Reconciling... [Done]
98a90a67 Background task [Done]
a8508acb Reconciling... [Done]
33527f20 Background task [Done]
a497a11a Updating project configurations [Done]
a4108253 Building [Done]
c9f02ddc Building [Done]
ddb9a44a Register Watchers [Done]
4c4ebf48 Validate documents [Done]
84a22db5 Publish Diagnostics [Done]
e2371775 Building [Done]
60e09ffe Background task - 0%

Exception reported in ...\readhat.java\jdt_ws.metadata.log:

[Error - 9:16:09 AM] Request callHierarchy/outgoingCalls failed.
Message: Internal error.
Code: -32603
java.util.concurrent.CompletionException: java.lang.NullPointerException: Cannot read the array length because "superPermittedTypes" is null
at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:315)
at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:320)
at java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:649)
at java.base/java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:483)
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)
Caused by: java.lang.NullPointerException: Cannot read the array length because "superPermittedTypes" is null
at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.checkPermitsAndAdd(SourceTypeBinding.java:1346)
at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.checkPermitsInType(SourceTypeBinding.java:1202)
at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.faultInTypesForFieldsAndMethods(SourceTypeBinding.java:1116)
at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.faultInTypes(CompilationUnitScope.java:608)
at org.eclipse.jdt.internal.codeassist.SelectionEngine.selectType(SelectionEngine.java:1685)
at org.eclipse.jdt.internal.core.NamedMember.resolveType(NamedMember.java:332)
at org.eclipse.jdt.internal.core.NamedMember.resolveType(NamedMember.java:274)
at org.eclipse.jdt.internal.corext.dom.Bindings.sameParameter(Bindings.java:1103)
at org.eclipse.jdt.internal.corext.dom.Bindings.sameParameters(Bindings.java:1074)
at org.eclipse.jdt.internal.corext.dom.Bindings.findMethod(Bindings.java:1056)
at org.eclipse.jdt.internal.corext.callhierarchy.CalleeAnalyzerVisitor.findIncludingSupertypes(CalleeAnalyzerVisitor.java:309)
at org.eclipse.jdt.internal.corext.callhierarchy.CalleeAnalyzerVisitor.addMethodCall(CalleeAnalyzerVisitor.java:264)
at org.eclipse.jdt.internal.corext.callhierarchy.CalleeAnalyzerVisitor.visit(CalleeAnalyzerVisitor.java:177)
at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:220)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:3334)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:3382)
at org.eclipse.jdt.core.dom.ExpressionStatement.accept0(ExpressionStatement.java:136)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:3334)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:3405)
at org.eclipse.jdt.core.dom.Block.accept0(Block.java:128)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:3334)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:3382)
at org.eclipse.jdt.core.dom.TryStatement.accept0(TryStatement.java:274)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:3334)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:3405)
at org.eclipse.jdt.core.dom.Block.accept0(Block.java:128)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:3334)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:3382)
at org.eclipse.jdt.core.dom.MethodDeclaration.accept0(MethodDeclaration.java:677)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:3334)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:3405)
at org.eclipse.jdt.core.dom.TypeDeclaration.accept0(TypeDeclaration.java:498)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:3334)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:3405)
at org.eclipse.jdt.core.dom.CompilationUnit.accept0(CompilationUnit.java:258)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:3334)
at org.eclipse.jdt.internal.corext.callhierarchy.CalleeMethodWrapper.findChildren(CalleeMethodWrapper.java:101)
at org.eclipse.jdt.internal.corext.callhierarchy.MethodWrapper.performSearch(MethodWrapper.java:265)
at org.eclipse.jdt.internal.corext.callhierarchy.MethodWrapper.doFindChildren(MethodWrapper.java:196)
at org.eclipse.jdt.internal.corext.callhierarchy.MethodWrapper.getCalls(MethodWrapper.java:87)
at org.eclipse.jdt.internal.corext.callhierarchy.CalleeMethodWrapper.getCalls(CalleeMethodWrapper.java:58)
at org.eclipse.jdt.ls.core.internal.handlers.CallHierarchyHandler.getOutgoingCallItemsAt(CallHierarchyHandler.java:255)
at org.eclipse.jdt.ls.core.internal.handlers.CallHierarchyHandler.callHierarchyOutgoingCalls(CallHierarchyHandler.java:133)
at org.eclipse.jdt.ls.core.internal.handlers.JDTLanguageServer.lambda$54(JDTLanguageServer.java:1183)
at org.eclipse.jdt.ls.core.internal.handlers.JDTLanguageServer.lambda$61(JDTLanguageServer.java:1236)
at java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:646)
... 6 more

Extension version: 1.3.1
VS Code version: Code 1.89.1 (dc96b837cf6bb4af9cd736aa3af08cf8279f7685, 2024-05-07T05:13:33.891Z)
OS version: Windows_NT x64 10.0.19045
Modes:

System Info

Item	Value
CPUs	AMD Ryzen 5 5600H with Radeon Graphics (12 x 3294)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled
Load (avg)	undefined
Memory (System)	15.37GB (8.86GB free)
Process Argv	--crash-reporter-id ff545c42-bfb5-488b-b6a6-43d3bc1c4853
Screen Reader	no
VM	0%

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[jrte]

This resolved after second attempt to "Clean Java Server Workspace". First attempt did nothing. Client log is here: client.log.zip