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Product Version: NetBeans IDE Dev (Build 201503060001) Java: 1.8.0_40; Java HotSpot(TM) 64-Bit Server VM 25.40-b25 Runtime: Java(TM) SE Runtime Environment 1.8.0_40-b25 System: Linux version 3.16.0-31-generic running on amd64; UTF-8; en_US (nb) code: report.getRequestHeaders().entrySet().stream() .collect( Collectors.reducing( "", Map.Entry::getKey + ": " + Map.Entry::getV from messages: INFO [org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl]: org.netbeans.modules.java.hints.suggestions.Lambda.reference2Lambda java.lang.IllegalArgumentException: Unsupported type: <any?>, kind: OTHER at org.netbeans.modules.java.source.usages.ClassFileUtil.encodeType(ClassFileUtil.java:318) at org.netbeans.modules.java.source.usages.ClassFileUtil.createExecutableDescriptor(ClassFileUtil.java:198) at org.netbeans.api.java.source.ElementHandle.createImpl(ElementHandle.java:458) at org.netbeans.api.java.source.ElementHandle.create(ElementHandle.java:397) at org.netbeans.api.java.source.TreePathHandle.create(TreePathHandle.java:268) at org.netbeans.spi.java.hints.JavaFix.<init>(JavaFix.java:120) at org.netbeans.spi.java.hints.JavaFix.<init>(JavaFix.java:102) at org.netbeans.modules.java.hints.suggestions.Lambda$MemberReference2Lambda.<init>(Lambda.java:471) at org.netbeans.modules.java.hints.suggestions.Lambda.reference2Lambda(Lambda.java:226) Caused: java.lang.reflect.InvocationTargetException 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) [catch] at org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:336) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:111) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scanDoNotGoDeeper(HintsInvoker.java:711) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeSuggestions(HintsInvoker.java:396) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:232) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:209) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:182) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:149) at org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114) at org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:83) at org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:298) at org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:584) at org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:809) at org.openide.util.lookup.Lookups.executeWith(Lookups.java:304) at org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:725) at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:686) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1425) at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68) at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2038) SEVERE [org.openide.util.Exceptions] java.lang.IllegalArgumentException: Unsupported type: <any?>, kind: OTHER at org.netbeans.modules.java.source.usages.ClassFileUtil.encodeType(ClassFileUtil.java:318) at org.netbeans.modules.java.source.usages.ClassFileUtil.createExecutableDescriptor(ClassFileUtil.java:198) at org.netbeans.api.java.source.ElementHandle.createImpl(ElementHandle.java:458) at org.netbeans.api.java.source.ElementHandle.create(ElementHandle.java:397) at org.netbeans.api.java.source.TreePathHandle.create(TreePathHandle.java:268) at org.netbeans.spi.java.hints.JavaFix.<init>(JavaFix.java:120) at org.netbeans.spi.java.hints.JavaFix.<init>(JavaFix.java:102) at org.netbeans.modules.java.hints.suggestions.Lambda$MemberReference2Lambda.<init>(Lambda.java:471) at org.netbeans.modules.java.hints.suggestions.Lambda.reference2Lambda(Lambda.java:226) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) [catch] at org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:336) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:111) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scanDoNotGoDeeper(HintsInvoker.java:711) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeSuggestions(HintsInvoker.java:396) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:232) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:209) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:182) at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:149) at org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114) at org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:83) at org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:298) at org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:584) at org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:809) at org.openide.util.lookup.Lookups.executeWith(Lookups.java:304) at org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:725) at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:686) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1425) at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68) at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2038) WARNING [org.netbeans.core.startup.InstalledFileLocatorImpl]: no code name base passed when looking up build_info at org.netbeans.modules.uihandler.BuildInfo.logBuildInfo(BuildInfo.java:84) INFO [org.netbeans.modules.uihandler.Installer]: findIdentity: 5a5a3af5-f7ed-48a3-bcf4-4c78c8bde103_fe2fcf13-c9d7-481f-86a2-380583ec660d
Confirmed. This is caused by the member reference. The current code tries to resolve the member reference to an Element (trees.getElement(path)) and it "works" - the resulting Element is a METHOD kind, but its return type is UnknownType which fails serialization. Please advise: is it OK, that e.g. * the Element is not an element which corresponds to java.util.Map.Entry.getKey() method ? * trees.getTypeMirror() on the member reference yields error type (I would expect executable type) Is it possible to detect that such an Element is like "synthetic" (forged), so TPH is not created for it ?
Reassigning to NB-javac for investigation. I can fix the handle if I can tell the Element is 'artificial' somehow - or the TPH.create() can be fixed by javac library returning a proper Element or return type :)
Also see issue #236152, possibly a duplicate