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20030716 + core update In a testing workspace (JUnit source code + changes) I have this exception reproducable (on every full build). I have it in the debugger, will add more information as soon as I know more. java.lang.NullPointerException at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.recordTypeReferences(CompilationUnitScope.java:529) at org.eclipse.jdt.internal.compiler.lookup.Scope.findExactMethod(Scope.java:169) at org.eclipse.jdt.internal.compiler.lookup.BlockScope.getMethod(BlockScope.java:1044) at org.eclipse.jdt.internal.compiler.ast.CastExpression.checkAlternateBinding(CastExpression.java:321) at org.eclipse.jdt.internal.compiler.ast.CastExpression.checkNeedForArgumentCasts(CastExpression.java:254) at org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:273) at org.eclipse.jdt.internal.compiler.ast.Expression.resolve(Expression.java:433) at org.eclipse.jdt.internal.compiler.ast.Block.resolve(Block.java:108) at org.eclipse.jdt.internal.compiler.ast.ForStatement.resolve(ForStatement.java:321) at org.eclipse.jdt.internal.compiler.ast.Block.resolve(Block.java:108) at org.eclipse.jdt.internal.compiler.ast.IfStatement.resolve(IfStatement.java:261) at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:361) at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:140) at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:351) at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:846) at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:887) at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve(CompilationUnitDeclaration.java:270) at org.eclipse.jdt.internal.compiler.Compiler.process(Compiler.java:533) at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:328) at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile(AbstractImageBuilder.java:198) at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile(AbstractImageBuilder.java:148) at org.eclipse.jdt.internal.core.builder.BatchImageBuilder.build(BatchImageBuilder.java:51) at org.eclipse.jdt.internal.core.builder.JavaBuilder.buildAll(JavaBuilder.java:192) at org.eclipse.jdt.internal.core.builder.JavaBuilder.build(JavaBuilder.java:115) at org.eclipse.core.internal.events.BuildManager$2.run(Unknown Source) at org.eclipse.core.internal.runtime.InternalPlatform.run(Unknown Source) at org.eclipse.core.runtime.Platform.run(Unknown Source) at org.eclipse.core.internal.events.BuildManager.basicBuild(Unknown Source) at org.eclipse.core.internal.events.BuildManager.basicBuild(Unknown Source) at org.eclipse.core.internal.events.BuildManager.basicBuild(Unknown Source) at org.eclipse.core.internal.events.BuildManager$1.run(Unknown Source) at org.eclipse.core.internal.runtime.InternalPlatform.run(Unknown Source) at org.eclipse.core.runtime.Platform.run(Unknown Source) at org.eclipse.core.internal.events.BuildManager.basicBuild(Unknown Source) at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(Unknown Source) at org.eclipse.core.internal.events.BuildManager.build(Unknown Source) at org.eclipse.core.internal.resources.Workspace.build(Unknown Source) at org.eclipse.jdt.internal.ui.preferences.OptionsConfigurationBlock$3.run(OptionsConfigurationBlock.java:354) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(Unknown Source)
Created attachment 5489 [details] project build throws NPE 'www' is the project name
Reproduced.
Simpler test case: public class X { void bar() { foo((X) zork()); } void foo(X x) { } } Problem is a lack of fault-tolerance if cast expression resolvedType slot is not positionned (due to some intermediate unbound signature).
Fixed. Regression test added. Should release for M2.
Fixed
Made v_364a
Patch posted on JDT/Core 3.0 update page.
Verified.
