Bugzilla – Full Text Bug Listing
| Summary: | [infer type arguments] NPE in InferTypeArgumentsConstraintsSolver#getNonTaggingInterfaces() | ||||||
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| Product: | [Eclipse Project] JDT | Reporter: | Markus Keller <markus.kell.r> | ||||
| Component: | UI | Assignee: | JDT-UI-Inbox <jdt-ui-inbox> | ||||
| Status: | RESOLVED FIXED | QA Contact: | |||||
| Severity: | normal | ||||||
| Priority: | P3 | ||||||
| Version: | 3.7 | ||||||
| Target Milestone: | 3.7 M1 | ||||||
| Hardware: | PC | ||||||
| OS: | Windows XP | ||||||
| Whiteboard: | |||||||
| Attachments: |
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Fixed in HEAD. |
Created attachment 174852 [details] Fix I20100720-0800 NPE in InferTypeArgumentsConstraintsSolver#getNonTaggingInterfaces() when trying to infer type arguments of org.eclipse.jdt.ui: Root exception: java.lang.NullPointerException at org.eclipse.jdt.internal.corext.refactoring.generics.InferTypeArgumentsConstraintsSolver.getNonTaggingInterfaces(InferTypeArgumentsConstraintsSolver.java:358) at org.eclipse.jdt.internal.corext.refactoring.generics.InferTypeArgumentsConstraintsSolver.chooseSingleType(InferTypeArgumentsConstraintsSolver.java:321) at org.eclipse.jdt.internal.corext.refactoring.generics.InferTypeArgumentsConstraintsSolver.chooseTypes(InferTypeArgumentsConstraintsSolver.java:280) at org.eclipse.jdt.internal.corext.refactoring.generics.InferTypeArgumentsConstraintsSolver.solveConstraints(InferTypeArgumentsConstraintsSolver.java:129) at org.eclipse.jdt.internal.corext.refactoring.generics.InferTypeArgumentsRefactoring.checkFinalConditions(InferTypeArgumentsRefactoring.java:235) at org.eclipse.ltk.core.refactoring.CheckConditionsOperation.run(CheckConditionsOperation.java:85) at org.eclipse.ltk.core.refactoring.CreateChangeOperation.run(CreateChangeOperation.java:121) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1975) at org.eclipse.ltk.internal.ui.refactoring.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:87) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121) Problem is that InferTypeArgumentsConstraintsSolver#getNonTaggingInterfaces() assumes that all types are from the same project. The code was stupid anyway (expensive AST parsing is not required at all), so the fix will also improve performance.