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Bug #5763

closed

Failure in saxon:new-attribute() - A LazySequence can only be read once. (PEJ qt3extra XP31 test fails)

Added by Norm Tovey-Walsh about 1 year ago. Updated about 1 year ago.

Status:
Closed
Priority:
Normal
Assignee:
Category:
Saxon extensions
Sprint/Milestone:
-
Start date:
2022-12-13
Due date:
% Done:

100%

Estimated time:
Legacy ID:
Applies to branch:
11, trunk
Fix Committed on Branch:
11, trunk
Fixed in Maintenance Release:
Platforms:
.NET, Java

Description

Testing name($result) = 'a'
Testing string($result) = ''
-s:saxon-new-attribute -t:new-attribute-02
A LazySequence can only be read once
java.lang.IllegalStateException: A LazySequence can only be read once
	at net.sf.saxon.om.LazySequence.iterate(LazySequence.java:54)
	at net.sf.saxon.om.LazySequence.head(LazySequence.java:40)
	at com.saxonica.functions.extfn.NewAttribute.call(NewAttribute.java:38)
	at com.saxonica.functions.extfn.NewAttribute.call(NewAttribute.java:18)
	at net.sf.saxon.expr.SystemFunctionCall$SystemFunctionCallElaborator.lambda$elaborateForPull$2(SystemFunctionCall.java:617)
	at net.sf.saxon.sxpath.XPathExpression.iterate(XPathExpression.java:176)
	at net.sf.saxon.s9api.XPathSelector.evaluate(XPathSelector.java:229)
	at net.sf.saxon.testdriver.QT3TestDriverHE.runTestCase(QT3TestDriverHE.java:590)
	at net.sf.saxon.testdriver.TestDriver.lambda$processTestSet$2(TestDriver.java:713)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
	at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
	at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
	at net.sf.saxon.s9api.streams.XdmStream.forEach(XdmStream.java:360)
	at java.base/java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:274)
	at java.base/java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
	at net.sf.saxon.s9api.streams.XdmStream.forEach(XdmStream.java:360)
	at net.sf.saxon.testdriver.TestDriver.processTestSet(TestDriver.java:707)
	at net.sf.saxon.testdriver.TestDriver.processCatalog(TestDriver.java:350)
	at net.sf.saxon.testdriver.TestDriver.go(TestDriver.java:236)
	at net.sf.saxon.testdriver.QT3TestDriverHE.go(QT3TestDriverHE.java:72)
	at com.saxonica.testdriver.QT3TestDriverPE.go(QT3TestDriverPE.java:59)
	at com.saxonica.testdriver.QT3TestDriverPE.main(QT3TestDriverPE.java:46)
Exception in thread "main" java.lang.NullPointerException: value
	at java.base/java.util.Objects.requireNonNull(Objects.java:246)
	at net.sf.saxon.s9api.XPathSelector.setVariable(XPathSelector.java:107)
	at net.sf.saxon.testdriver.TestOutcome.assertType(TestOutcome.java:501)
	at net.sf.saxon.testdriver.TestOutcome.testAssertion2(TestOutcome.java:390)
	at net.sf.saxon.testdriver.TestOutcome.testAssertion(TestOutcome.java:308)
	at net.sf.saxon.testdriver.TestOutcome.testAssertion2(TestOutcome.java:442)
	at net.sf.saxon.testdriver.TestOutcome.testAssertion(TestOutcome.java:308)
	at net.sf.saxon.testdriver.QT3TestDriverHE.runTestCase(QT3TestDriverHE.java:805)
	at net.sf.saxon.testdriver.TestDriver.lambda$processTestSet$2(TestDriver.java:713)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
	at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
	at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
	at net.sf.saxon.s9api.streams.XdmStream.forEach(XdmStream.java:360)
	at java.base/java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:274)
	at java.base/java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
	at net.sf.saxon.s9api.streams.XdmStream.forEach(XdmStream.java:360)
	at net.sf.saxon.testdriver.TestDriver.processTestSet(TestDriver.java:707)
	at net.sf.saxon.testdriver.TestDriver.processCatalog(TestDriver.java:350)
	at net.sf.saxon.testdriver.TestDriver.go(TestDriver.java:236)
	at net.sf.saxon.testdriver.QT3TestDriverHE.go(QT3TestDriverHE.java:72)
	at com.saxonica.testdriver.QT3TestDriverPE.go(QT3TestDriverPE.java:59)
	at com.saxonica.testdriver.QT3TestDriverPE.main(QT3TestDriverPE.java:46)
Actions #1

Updated by Michael Kay about 1 year ago

  • Project changed from 20 to Saxon
  • Subject changed from PEJ qt3extra XP31 test fails to Failure in saxon:new-attribute() - A LazySequence can only be read once. (PEJ qt3extra XP31 test fails)
  • Category set to Saxon extensions
  • Status changed from New to Resolved
  • Applies to branch 11, trunk added
  • Fix Committed on Branch 11, trunk added
  • Platforms .NET, Java added

I haven't managed to reproduce this but it's very clear in the code what's wrong, so I've corrected it (in NewAttribute.java). Similar fix to NewElement.java.

The same code is present on the 11.x branch, I've applied the fix there as well.

Actions #2

Updated by Community Admin about 1 year ago

  • % Done changed from 0 to 100
  • Fixed in Maintenance Release 12.0 added

Bug issue fix applied in the Saxon 12.0 Major Release. Leaving this bug marked as Resolved until fix applied

Actions #3

Updated by O'Neil Delpratt about 1 year ago

  • Fixed in Maintenance Release 11.5 added

Bug applied in the Saxon 11.5 Maintenance release.

Actions #4

Updated by O'Neil Delpratt about 1 year ago

  • Status changed from Resolved to Closed

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