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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=11390 NullPointerException when no namespace bound to extension-element-prefix Summary: NullPointerException when no namespace bound to extension-element-prefix Product: XalanJ2 Version: 2.4Dx Platform: PC OS/Version: Other Status: NEW Severity: Normal Priority: Other Component: Xalan AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] A java.lang.NullPointerException is thrown when there is no namespace bound to a prefix in the extension-element-prefixes attribute and a namespace other than the xmlns:xsl namespace is declared. My transformation environment is JDK 1.4.0_01 and org.apache.xalan.xslt.Process on Windows2000. According to org.apache.xalan.xslt.EnvironmentCheck, I am using Xalan Java 2.4.D1. A transformation against the following stylesheet throws the exception: <?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; xmlns:foo="foo" extension-element-prefixes="my-ext" > <xsl:template match="/"> Hello World! </xsl:template> </xsl:stylesheet> However, I noticed that an exception does not occur when the xmlns:foo namespace declaration is removed (i.e. xmlns:xsl is the only namespace declaration). I think the correct behavior of both of these conditions should be an error (at least according to my interpretation of section 14.1 of the XSLT 1.0 spec) I have attached the source XML file (doc.xml) and stylesheet (foo.xsl) used in the transformation that causes the exception. Also, below is the stack dump: javax.xml.transform.TransformerConfigurationException: javax.xml.transform.TransformerException: java.lang.NullPointerException at org.apache.xalan.processor.TransformerFactoryImpl.newTemplates (TransformerFactoryImpl.java:1013) at org.apache.xalan.xslt.Process.main(Process.java:594) Caused by: javax.xml.transform.TransformerException: java.lang.NullPointerException at org.apache.xalan.processor.TransformerFactoryImpl.newTemplates (TransformerFactoryImpl.java:1007) ... 1 more Caused by: java.lang.NullPointerException at org.apache.xml.utils.StringVector.contains(StringVector.java:175) at org.apache.xalan.templates.Stylesheet.containsExtensionElementURI (Stylesheet.java:322) at org.apache.xalan.templates.ElemTemplateElement.excludeResultNSDecl (ElemTemplateElement.java:1059) at org.apache.xalan.templates.ElemTemplateElement.resolvePrefixTables (ElemTemplateElement.java:1106) at org.apache.xalan.templates.ElemTemplateElement.compose (ElemTemplateElement.java:252) at org.apache.xalan.templates.StylesheetRoot.composeTemplates (StylesheetRoot.java:356) at org.apache.xalan.templates.StylesheetRoot.recompose (StylesheetRoot.java:336) at org.apache.xalan.processor.StylesheetHandler.endDocument (StylesheetHandler.java:508) at org.apache.xerces.parsers.AbstractSAXParser.endDocument (AbstractSAXParser.java:715) at org.apache.xerces.impl.XMLNamespaceBinder.endDocument (XMLNamespaceBinder.java:704) at org.apache.xerces.impl.dtd.XMLDTDValidator.endDocument (XMLDTDValidator.java:985) at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity (XMLDocumentScannerImpl.java:437) at org.apache.xerces.impl.XMLEntityManager.endEntity (XMLEntityManager.java:1159) at org.apache.xerces.impl.XMLEntityManager$EntityScanner.load (XMLEntityManager.java:3204) at org.apache.xerces.impl.XMLEntityManager$EntityScanner.skipSpaces (XMLEntityManager.java:2905) at org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.dispatch (XMLDocumentScannerImpl.java:987) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument (XMLDocumentFragmentScannerImpl.java:333) at org.apache.xerces.parsers.StandardParserConfiguration.parse (StandardParserConfiguration.java:529) at org.apache.xerces.parsers.StandardParserConfiguration.parse (StandardParserConfiguration.java:585) at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:147) at org.apache.xerces.parsers.AbstractSAXParser.parse (AbstractSAXParser.java:1148) at org.apache.xalan.processor.TransformerFactoryImpl.newTemplates (TransformerFactoryImpl.java:983) ... 1 more --------- javax.xml.transform.TransformerException: java.lang.NullPointerException at org.apache.xalan.processor.TransformerFactoryImpl.newTemplates (TransformerFactoryImpl.java:1007) at org.apache.xalan.xslt.Process.main(Process.java:594) Caused by: java.lang.NullPointerException at org.apache.xml.utils.StringVector.contains(StringVector.java:175) at org.apache.xalan.templates.Stylesheet.containsExtensionElementURI (Stylesheet.java:322) at org.apache.xalan.templates.ElemTemplateElement.excludeResultNSDecl (ElemTemplateElement.java:1059) at org.apache.xalan.templates.ElemTemplateElement.resolvePrefixTables (ElemTemplateElement.java:1106) at org.apache.xalan.templates.ElemTemplateElement.compose (ElemTemplateElement.java:252) at org.apache.xalan.templates.StylesheetRoot.composeTemplates (StylesheetRoot.java:356) at org.apache.xalan.templates.StylesheetRoot.recompose (StylesheetRoot.java:336) at org.apache.xalan.processor.StylesheetHandler.endDocument (StylesheetHandler.java:508) at org.apache.xerces.parsers.AbstractSAXParser.endDocument (AbstractSAXParser.java:715) at org.apache.xerces.impl.XMLNamespaceBinder.endDocument (XMLNamespaceBinder.java:704) at org.apache.xerces.impl.dtd.XMLDTDValidator.endDocument (XMLDTDValidator.java:985) at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity (XMLDocumentScannerImpl.java:437) at org.apache.xerces.impl.XMLEntityManager.endEntity (XMLEntityManager.java:1159) at org.apache.xerces.impl.XMLEntityManager$EntityScanner.load (XMLEntityManager.java:3204) at org.apache.xerces.impl.XMLEntityManager$EntityScanner.skipSpaces (XMLEntityManager.java:2905) at org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.dispatch (XMLDocumentScannerImpl.java:987) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument (XMLDocumentFragmentScannerImpl.java:333) at org.apache.xerces.parsers.StandardParserConfiguration.parse (StandardParserConfiguration.java:529) at org.apache.xerces.parsers.StandardParserConfiguration.parse (StandardParserConfiguration.java:585) at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:147) at org.apache.xerces.parsers.AbstractSAXParser.parse (AbstractSAXParser.java:1148) at org.apache.xalan.processor.TransformerFactoryImpl.newTemplates (TransformerFactoryImpl.java:983) ... 1 more --------- java.lang.NullPointerException at org.apache.xml.utils.StringVector.contains(StringVector.java:175) at org.apache.xalan.templates.Stylesheet.containsExtensionElementURI (Stylesheet.java:322) at org.apache.xalan.templates.ElemTemplateElement.excludeResultNSDecl (ElemTemplateElement.java:1059) at org.apache.xalan.templates.ElemTemplateElement.resolvePrefixTables (ElemTemplateElement.java:1106) at org.apache.xalan.templates.ElemTemplateElement.compose (ElemTemplateElement.java:252) at org.apache.xalan.templates.StylesheetRoot.composeTemplates (StylesheetRoot.java:356) at org.apache.xalan.templates.StylesheetRoot.recompose (StylesheetRoot.java:336) at org.apache.xalan.processor.StylesheetHandler.endDocument (StylesheetHandler.java:508) at org.apache.xerces.parsers.AbstractSAXParser.endDocument (AbstractSAXParser.java:715) at org.apache.xerces.impl.XMLNamespaceBinder.endDocument (XMLNamespaceBinder.java:704) at org.apache.xerces.impl.dtd.XMLDTDValidator.endDocument (XMLDTDValidator.java:985) at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity (XMLDocumentScannerImpl.java:437) at org.apache.xerces.impl.XMLEntityManager.endEntity (XMLEntityManager.java:1159) at org.apache.xerces.impl.XMLEntityManager$EntityScanner.load (XMLEntityManager.java:3204) at org.apache.xerces.impl.XMLEntityManager$EntityScanner.skipSpaces (XMLEntityManager.java:2905) at org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.dispatch (XMLDocumentScannerImpl.java:987) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument (XMLDocumentFragmentScannerImpl.java:333) at org.apache.xerces.parsers.StandardParserConfiguration.parse (StandardParserConfiguration.java:529) at org.apache.xerces.parsers.StandardParserConfiguration.parse (StandardParserConfiguration.java:585) at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:147) at org.apache.xerces.parsers.AbstractSAXParser.parse (AbstractSAXParser.java:1148) at org.apache.xalan.processor.TransformerFactoryImpl.newTemplates (TransformerFactoryImpl.java:983) at org.apache.xalan.xslt.Process.main(Process.java:594) --------- java.lang.NullPointerException at org.apache.xml.utils.StringVector.contains(StringVector.java:175) at org.apache.xalan.templates.Stylesheet.containsExtensionElementURI (Stylesheet.java:322) at org.apache.xalan.templates.ElemTemplateElement.excludeResultNSDecl (ElemTemplateElement.java:1059) at org.apache.xalan.templates.ElemTemplateElement.resolvePrefixTables (ElemTemplateElement.java:1106) at org.apache.xalan.templates.ElemTemplateElement.compose (ElemTemplateElement.java:252) at org.apache.xalan.templates.StylesheetRoot.composeTemplates (StylesheetRoot.java:356) at org.apache.xalan.templates.StylesheetRoot.recompose (StylesheetRoot.java:336) at org.apache.xalan.processor.StylesheetHandler.endDocument (StylesheetHandler.java:508) at org.apache.xerces.parsers.AbstractSAXParser.endDocument (AbstractSAXParser.java:715) at org.apache.xerces.impl.XMLNamespaceBinder.endDocument (XMLNamespaceBinder.java:704) at org.apache.xerces.impl.dtd.XMLDTDValidator.endDocument (XMLDTDValidator.java:985) at org.apache.xerces.impl.XMLDocumentScannerImpl.endEntity (XMLDocumentScannerImpl.java:437) at org.apache.xerces.impl.XMLEntityManager.endEntity (XMLEntityManager.java:1159) at org.apache.xerces.impl.XMLEntityManager$EntityScanner.load (XMLEntityManager.java:3204) at org.apache.xerces.impl.XMLEntityManager$EntityScanner.skipSpaces (XMLEntityManager.java:2905) at org.apache.xerces.impl.XMLDocumentScannerImpl$TrailingMiscDispatcher.dispatch (XMLDocumentScannerImpl.java:987) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument (XMLDocumentFragmentScannerImpl.java:333) at org.apache.xerces.parsers.StandardParserConfiguration.parse (StandardParserConfiguration.java:529) at org.apache.xerces.parsers.StandardParserConfiguration.parse (StandardParserConfiguration.java:585) at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:147) at org.apache.xerces.parsers.AbstractSAXParser.parse (AbstractSAXParser.java:1148) at org.apache.xalan.processor.TransformerFactoryImpl.newTemplates (TransformerFactoryImpl.java:983) at org.apache.xalan.xslt.Process.main(Process.java:594)
