Bug 572979

Summary:

java.lang.NullPointerException: Cannot invoke "org.eclipse.jdt.internal.compiler.lookup.TypeBinding.needsUncheckedConversion(org.eclipse.jdt.internal.compiler.lookup.TypeBinding)" because "argumentType" is null

Product:

[Eclipse Project] JDT

Reporter:

Pedro Lamarão <pedro.lamarao>

Component:

Core

Assignee:

JDT-Core-Inbox <jdt-core-inbox>

Status:

NEW ---

QA Contact:

Severity:

normal

Priority:

CC:

manoj.palat, raisercostin

Version:

4.19

Keywords:

needinfo

Target Milestone:

---

Hardware:

OS:

Windows 10

Whiteboard:

stalebug

Attachments:

Description	Flags
About > Installation Details > Configuration	none

Description Pedro Lamarão

2021-04-19 13:40:49 EDT

I get this error systematically when trying to run JUnit 5 tests for a JDT + Buildship project. Lombok plugins is installed.


eclipse.buildId=4.19.0.I20210303-1800
java.version=15.0.2
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_GB
Framework arguments:  -product org.eclipse.epp.package.java.product
Command-line arguments:  -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.java.product

org.eclipse.jdt.junit
Error
Mon Apr 19 14:31:15 BRT 2021
Error

java.lang.NullPointerException: Cannot invoke "org.eclipse.jdt.internal.compiler.lookup.TypeBinding.needsUncheckedConversion(org.eclipse.jdt.internal.compiler.lookup.TypeBinding)" because "argumentType" is null
	at org.eclipse.jdt.internal.compiler.ast.ASTNode.checkInvocationArgument(ASTNode.java:362)
	at org.eclipse.jdt.internal.compiler.ast.ASTNode.checkInvocationArguments(ASTNode.java:448)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:953)
	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.Block.resolve(Block.java:131)
	at org.eclipse.jdt.internal.compiler.ast.LambdaExpression.resolveType(LambdaExpression.java:458)
	at org.eclipse.jdt.internal.compiler.ast.ASTNode.resolvePolyExpressionArguments(ASTNode.java:721)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.findMethodBinding(MessageSend.java:1024)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:838)
	at org.eclipse.jdt.internal.compiler.ast.Expression.resolve(Expression.java:1113)
	at org.eclipse.jdt.internal.compiler.ast.Block.resolveUsing(Block.java:144)
	at org.eclipse.jdt.internal.compiler.ast.TryStatement.resolve(TryStatement.java:1209)
	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.RegionBasedHierarchyBuilder.createTypeHierarchyBasedOnRegion(RegionBasedHierarchyBuilder.java:86)
	at org.eclipse.jdt.internal.core.hierarchy.RegionBasedHierarchyBuilder.build(RegionBasedHierarchyBuilder.java:55)
	at org.eclipse.jdt.internal.core.hierarchy.RegionBasedTypeHierarchy.compute(RegionBasedTypeHierarchy.java:79)
	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.core.JavaCore.newTypeHierarchy(JavaCore.java:5034)
	at org.eclipse.jdt.internal.junit.launcher.JUnit5TestFinder.findTestsInContainer(JUnit5TestFinder.java:217)
	at org.eclipse.jdt.internal.junit.util.TestSearchEngine.lambda$0(TestSearchEngine.java:42)
	at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122)

Comment 1 Pedro Lamarão

2021-04-19 13:42:07 EDT

Created attachment 286171 [details]
About > Installation Details > Configuration

Comment 2 Manoj N Palat

2021-04-22 12:20:50 EDT

Could you please attach a self contained reproducible test case?

Comment 3 raisercostin grigore

2022-03-17 03:27:57 EDT

I've got a similar problem while using `lombok.val` feature. Triggering an `open hierarchy` on any type in that file produced the error.

Fortunately we are on java15 so we could replace all lombok's `val` with java's `var`.

Comment 4 Eclipse Genie

2024-03-20 00:29:49 EDT

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.