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Bug #2555

closed

Bad parent pointer

Added by Gunther Rademacher over 8 years ago. Updated over 8 years ago.

Status:
Closed
Priority:
Low
Assignee:
Michael Kay
Category:
Internals
Sprint/Milestone:
-
Start date:
2015-12-20
Due date:
% Done:

100%

Estimated time:
Legacy ID:
Applies to branch:
9.7
Fix Committed on Branch:
9.7
Fixed in Maintenance Release:
9.7.0.2
Platforms:

Description

When running the attached XQuery program on Saxon-EE 9.7, e.g. using this command line

java net.sf.saxon.Query JavaParser.xquery input="{class X{}}"

these messages appear on System.err:

*** Bad parent pointer found in $state at 4834 ***
*** Bad parent pointer found in $state at 4834 ***

The program still works as expected.

Sorry for not reducing this into a smaller test case. I will gladly attempt to do that, but it will require some effort, so I wanted to check first whether this is of interest at all, and if yes, whether it may possibly be analyzed using this fairly big program.

So far I have only done some debugging for getting the call stack of PrintWriter.println, when invoked for the first message:

		UserFunctionCall(Expression).checkedOperands() line: 136	
		UserFunctionCall(Expression).typeCheckChildren(ExpressionVisitor, ContextItemStaticInfo) line: 427	
		UserFunctionCall(FunctionCall).typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 173	
		UserFunctionCall.typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 317	
		Operand.typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 185	
		Choose.typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 350	
		Operand.typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 185	
		LetExpression.typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 122	
		Operand.typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 185	
		Choose.typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 350	
		Operand.typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 185	
		LetExpression.typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 122	
		Operand.typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 185	
		Choose.typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 350	
		Operand.typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 185	
		LetExpression.typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 107	
		Operand.typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 185	
		LetExpression.typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 122	
		Operand.typeCheck(ExpressionVisitor, ContextItemStaticInfo) line: 185	
		LetExpression.optimize(ExpressionVisitor, ContextItemStaticInfo) line: 257	
		Operand.optimize(ExpressionVisitor, ContextItemStaticInfo) line: 200	
		Choose.optimize(ExpressionVisitor, ContextItemStaticInfo) line: 470	
		Operand.optimize(ExpressionVisitor, ContextItemStaticInfo) line: 200	
		LetExpression.optimize(ExpressionVisitor, ContextItemStaticInfo) line: 268	
		Operand.optimize(ExpressionVisitor, ContextItemStaticInfo) line: 200	
		LetExpression.optimize(ExpressionVisitor, ContextItemStaticInfo) line: 277	
		Operand.optimize(ExpressionVisitor, ContextItemStaticInfo) line: 200	
		LetExpression.optimize(ExpressionVisitor, ContextItemStaticInfo) line: 277	
		FLWORExpression.rewriteForOrLet(ExpressionVisitor, ContextItemStaticInfo) line: 759	
		FLWORExpression.optimize(ExpressionVisitor, ContextItemStaticInfo) line: 577	
		XQueryFunction.optimize() line: 430	
		XQueryFunctionLibrary.optimizeGlobalFunctions() line: 328	
		QueryModule.optimizeGlobalFunctions() line: 1200	
		Executable.fixupQueryModules(QueryModule, boolean) line: 574	
		XQueryParserEE(XQueryParser).makeXQueryExpression(String, QueryModule, Configuration) line: 161	
		StaticQueryContextEE(StaticQueryContext).compileQuery(String) line: 589	
		StaticQueryContextEE(StaticQueryContext).compileQuery(InputStream, String) line: 652	
		XQueryCompiler.compile(InputStream) line: 606	
		Query.compileQuery(XQueryCompiler, String, boolean) line: 794	
		Query.doQuery(String[], String) line: 342	
		Query.main(String[]) line: 111

Files

JavaParser.xquery (677 KB) JavaParser.xquery Gunther Rademacher, 2015-12-20 22:33

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