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I get an NPE while compiling a really big java project, find the exception pasted below. Please let me know if you need more information. ----------------------------------- session data: eclipse.buildId=4.12.0.I20190605-1800 java.version=11.0.3 java.vendor=AdoptOpenJDK BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=en_AR Framework arguments: -product org.eclipse.epp.package.jee.product -showLocation Command-line arguments: -os macosx -ws cocoa -arch x86_64 -product org.eclipse.epp.package.jee.product -showLocation -data /Users/pnussembaum/workspaces/workspace4 This is a continuation of log file /Users/pnussembaum/workspaces/workspace4/.metadata/.bak_0.log Created Time: 2019-06-25 18:32:48.314 ------------------------------- java.lang.NullPointerException at org.eclipse.jdt.internal.compiler.lookup.Scope.filterValidTypes(Scope.java:473) at org.eclipse.jdt.internal.compiler.lookup.Scope.greaterLowerBound(Scope.java:394) at org.eclipse.jdt.internal.compiler.lookup.Scope.leastContainingTypeArgument(Scope.java:3913) at org.eclipse.jdt.internal.compiler.lookup.Scope.leastContainingInvocation(Scope.java:3871) at org.eclipse.jdt.internal.compiler.lookup.Scope.lowerUpperBound(Scope.java:4014) at org.eclipse.jdt.internal.compiler.lookup.Scope.lowerUpperBound(Scope.java:3971) at org.eclipse.jdt.internal.compiler.lookup.InferenceContext18.resolve(InferenceContext18.java:1150) at org.eclipse.jdt.internal.compiler.lookup.InferenceContext18.solve(InferenceContext18.java:1024) at org.eclipse.jdt.internal.compiler.lookup.ParameterizedGenericMethodBinding.computeCompatibleMethod18(ParameterizedGenericMethodBinding.java:249) at org.eclipse.jdt.internal.compiler.lookup.ParameterizedGenericMethodBinding.computeCompatibleMethod(ParameterizedGenericMethodBinding.java:92) at org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:837) 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:953) at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:774) at org.eclipse.jdt.internal.compiler.ast.ReturnStatement.resolve(ReturnStatement.java:326) 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:1280) at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1405) 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:1216) at org.eclipse.jdt.core.dom.ASTParser.createAST(ASTParser.java:831) 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:139) at org.eclipse.jdt.internal.ui.text.java.hover.NLSStringHover.internalGetHoverInfo(NLSStringHover.java:139) at org.eclipse.jdt.internal.ui.text.java.hover.NLSStringHover.getHoverInfo2(NLSStringHover.java:118) at org.eclipse.jdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo2(BestMatchHover.java:167) at org.eclipse.jdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo2(BestMatchHover.java:133) at org.eclipse.jdt.internal.ui.text.java.hover.JavaEditorTextHoverProxy.getHoverInfo2(JavaEditorTextHoverProxy.java:89) at org.eclipse.jface.text.TextViewerHoverManager$4.run(TextViewerHoverManager.java:169)
(In reply to Pablo Nussembaum from comment #0) > I get an NPE while compiling a really big java project, find the exception > pasted below. > Please let me know if you need more information. Thanks. Yes, we'll need a source example that triggers this exception. Could it be that some needed type cannot be found, and in particular that this type is used in "? extends Missing" or "? super Missing" ?
BTW, the stack trace you showed is not compilation proper, but happens while computing a hover. So the "bad" file must be the one you were looking at in the editor.
I closed all open files then rebuilded the project and now I get an NPE on org.eclipse.core.resources without any stacktrace. Is there anything that I can do get more debug information? eclipse.buildId=4.12.0.I20190605-1800 java.version=11.0.3 java.vendor=AdoptOpenJDK BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=en_AR Framework arguments: -product org.eclipse.epp.package.jee.product -showLocation Command-line arguments: -os macosx -ws cocoa -arch x86_64 -product org.eclipse.epp.package.jee.product -showLocation -data /Users/pnussembaum/workspaces/workspace4 This is a continuation of log file /Users/pnussembaum/workspaces/workspace4/.metadata/.bak_0.log Created Time: 2019-06-25 18:32:48.314 org.eclipse.core.resources Error Wed Jun 26 11:25:55 ART 2019 Problems occurred when invoking code from plug-in: "org.eclipse.core.resources". java.lang.NullPointerException
(In reply to Pablo Nussembaum from comment #3) > I closed all open files then rebuilded the project and now I get an NPE on > org.eclipse.core.resources without any stacktrace. > Is there anything that I can do get more debug information? Hmm.. that looks like a different issue and probably unrelated to jdt core. Are you not seeing the problem reported in comment #0 anymore?
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.
