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I often get the following problem while debugging (and clicking on a variable in the Variables view): 'JDI thread evaluations' has encountered a problem. Exception processing async thread queue. Stack trace: java.lang.ClassCastException: org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding cannot be cast to org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding at org.eclipse.jdt.internal.compiler.lookup.TypeBinding.isProvablyDistinct(TypeBinding.java:633) at org.eclipse.jdt.internal.compiler.ast.Expression.checkUnsafeCast(Expression.java:526) at org.eclipse.jdt.internal.compiler.ast.Expression.checkCastTypesCompatibility(Expression.java:486) at org.eclipse.jdt.core.dom.TypeBinding.isCastCompatible(TypeBinding.java:1014) at org.eclipse.jdt.internal.debug.eval.ast.engine.ASTInstructionCompiler.getEnclosingLevel(ASTInstructionCompiler.java:406) at org.eclipse.jdt.internal.debug.eval.ast.engine.ASTInstructionCompiler.visit(ASTInstructionCompiler.java:2757) at org.eclipse.jdt.core.dom.MethodInvocation.accept0(MethodInvocation.java:237) at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2480) at org.eclipse.jdt.internal.debug.eval.ast.engine.ASTInstructionCompiler.visit(ASTInstructionCompiler.java:2141) at org.eclipse.jdt.core.dom.EnhancedForStatement.accept0(EnhancedForStatement.java:184) at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2480) at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:2551) at org.eclipse.jdt.core.dom.Block.accept0(Block.java:136) at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2480) at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:2528) at org.eclipse.jdt.core.dom.MethodDeclaration.accept0(MethodDeclaration.java:504) at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2480) at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:2551) at org.eclipse.jdt.core.dom.TypeDeclaration.accept0(TypeDeclaration.java:484) at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2480) at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:2551) at org.eclipse.jdt.core.dom.CompilationUnit.accept0(CompilationUnit.java:219) at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2480) at org.eclipse.jdt.internal.debug.eval.ast.engine.ASTEvaluationEngine.createExpressionFromAST(ASTEvaluationEngine.java:414) at org.eclipse.jdt.internal.debug.eval.ast.engine.ASTEvaluationEngine.getCompiledExpression(ASTEvaluationEngine.java:361) at org.eclipse.jdt.internal.debug.eval.ast.engine.ASTEvaluationEngine.getCompiledExpression(ASTEvaluationEngine.java:331) at org.eclipse.jdt.internal.debug.ui.JavaDetailFormattersManager.getCompiledExpression(JavaDetailFormattersManager.java:395) at org.eclipse.jdt.internal.debug.ui.JavaDetailFormattersManager.resolveFormatter(JavaDetailFormattersManager.java:158) at org.eclipse.jdt.internal.debug.ui.JavaDetailFormattersManager.access$1(JavaDetailFormattersManager.java:143) at org.eclipse.jdt.internal.debug.ui.JavaDetailFormattersManager$2.run(JavaDetailFormattersManager.java:138) at org.eclipse.jdt.internal.debug.core.model.JDIThread$ThreadJob.run(JDIThread.java:2756) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54) Unfortunately I was not able to reproduce with a simple test case, but I can reproduce consistently with the project I'm working on now. This problem doesn't let me inspect variables values in the Variables view. Moreover, if I try to inspect the selected code in the editor (through Ctrl+Shift+I) I get the following: Evaluations must contain either an expression or a blockof well-formed statements.
I just found out the following. The error shows up on a java.util.Properties instance and it disappears if I disable a detail formatter I have for java.util.Map variables. The formatter code snippet is the following: String result = ""; for(final Object o : keySet()) { Object value = get(o); result = result + String.valueOf(o) + " = " + String.valueOf(value) + "\n"; } return result;
*** This bug has been marked as a duplicate of bug 317046 ***
Thank you Michael and sorry for the duplication, I did a couple of searches for BinaryTypeBinding/cast/etc. but couldn't find anything.
