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  1. JDK
  2. JDK-8016914

CoreDocumentImpl.setXmlVersion NPE

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      Backports

        Description

        FULL PRODUCT VERSION :
        java version " 1.7.0_21 "
        Java(TM) SE Runtime Environment (build 1.7.0_21-b12)
        Java HotSpot(TM) 64-Bit Server VM (build 23.21-b01, mixed mode)

        ADDITIONAL OS VERSION INFORMATION :
        Darwin Kernel Version 12.4.0: Wed May 1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64 x86_64

        A DESCRIPTION OF THE PROBLEM :
        Hi,

        Through various calls, the JDK packaged version of Xalan ends up calling CoreDocumentImpl.setXmlVersion with null if the processed XML document doesn't contain an XML declaration. I'm inclined to say that it's a bug since the XML declaration is optional and the method should protect against NPEs.

        This same code completes without Exception on 1.6.0_45 (likely doesn't call setVersion but I haven't confirmed)

        Thanks,
        Dustin Schultz

        STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
        Compile and run the provided SetVersionNPE class

        EXPECTED VERSUS ACTUAL BEHAVIOR :
        EXPECTED -
        With Java 1.6, this does not fail:

        java version " 1.6.0_45 "
        Java(TM) SE Runtime Environment (build 1.6.0_45-b06-451-11M4406)
        Java HotSpot(TM) 64-Bit Server VM (build 20.45-b01-451, mixed mode)

        dustin$ java SetVersionNPE
        [#document: null]
        [#document: null]
        [#document: null]
        [#document: null]
        [#document: null]
        [#document: null]
        [#document: null]
        [#document: null]
        [#document: null]
        [#document: null]
        [#document: null]
        [#document: null]
        ACTUAL -
        java.lang.NullPointerException
        at com.sun.org.apache.xerces.internal.dom.CoreDocumentImpl.setXmlVersion(CoreDocumentImpl.java:860)
        at com.sun.org.apache.xalan.internal.xsltc.trax.SAX2DOM.setDocumentInfo(SAX2DOM.java:144)
        at com.sun.org.apache.xalan.internal.xsltc.trax.SAX2DOM.startElement(SAX2DOM.java:154)
        at com.sun.org.apache.xml.internal.serializer.ToXMLSAXHandler.closeStartTag(ToXMLSAXHandler.java:208)
        at com.sun.org.apache.xml.internal.serializer.ToXMLSAXHandler.characters(ToXMLSAXHandler.java:528)
        at com.sun.org.apache.xalan.internal.xsltc.trax.StAXStream2SAX.handleCharacters(StAXStream2SAX.java:262)
        at com.sun.org.apache.xalan.internal.xsltc.trax.StAXStream2SAX.bridge(StAXStream2SAX.java:169)
        at com.sun.org.apache.xalan.internal.xsltc.trax.StAXStream2SAX.parse(StAXStream2SAX.java:118)
        at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transformIdentity(TransformerImpl.java:678)
        at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:727)
        at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:340)


        ERROR MESSAGES/STACK TRACES THAT OCCUR :
        java.lang.NullPointerException

        REPRODUCIBILITY :
        This bug can be reproduced always.

        ---------- BEGIN SOURCE ----------
        import java.io.FileReader;
         
        import javax.xml.stream.XMLInputFactory;
        import javax.xml.stream.XMLStreamConstants;
        import javax.xml.stream.XMLStreamReader;
        import javax.xml.transform.Transformer;
        import javax.xml.transform.TransformerFactory;
        import javax.xml.transform.dom.DOMResult;
        import javax.xml.transform.stax.StAXSource;
         
        import org.w3c.dom.Node;
         
        public class SetVersionNPE {
         
            public static void main(final String[] args) throws Exception {
                final XMLInputFactory xif = XMLInputFactory.newInstance();
                final XMLStreamReader xsr = xif.createXMLStreamReader(new FileReader( " input.xml " ));
                xsr.nextTag(); // Advance to statements element
         
                final TransformerFactory tf = TransformerFactory.newInstance();
                final Transformer t = tf.newTransformer();
                while(xsr.nextTag() == XMLStreamConstants.START_ELEMENT) {
                    final DOMResult result = new DOMResult();
                    t.transform(new StAXSource(xsr), result);
                    final Node domNode = result.getNode();
                    System.out.println(domNode);
                }
            }
         
        }

        with this XML

        <catalog>
           <book id= " bk101 " >
              <author>Gambardella, Matthew</author>
              <title>XML Developer's Guide</title>
              <genre>Computer</genre>
              <price>44.95</price>
              <publish_date>2000-10-01</publish_date>
              <description>An in-depth look at creating applications
              with XML.</description>
           </book>
           <book id= " bk102 " >
              <author>Ralls, Kim</author>
              <title>Midnight Rain</title>
              <genre>Fantasy</genre>
              <price>5.95</price>
              <publish_date>2000-12-16</publish_date>
              <description>A former architect battles corporate zombies,
              an evil sorceress, and her own childhood to become queen
              of the world.</description>
           </book>
           <book id= " bk103 " >
              <author>Corets, Eva</author>
              <title>Maeve Ascendant</title>
              <genre>Fantasy</genre>
              <price>5.95</price>
              <publish_date>2000-11-17</publish_date>
              <description>After the collapse of a nanotechnology
              society in England, the young survivors lay the
              foundation for a new society.</description>
           </book>
           <book id= " bk104 " >
              <author>Corets, Eva</author>
              <title>Oberon's Legacy</title>
              <genre>Fantasy</genre>
              <price>5.95</price>
              <publish_date>2001-03-10</publish_date>
              <description>In post-apocalypse England, the mysterious
              agent known only as Oberon helps to create a new life
              for the inhabitants of London. Sequel to Maeve
              Ascendant.</description>
           </book>
           <book id= " bk105 " >
              <author>Corets, Eva</author>
              <title>The Sundered Grail</title>
              <genre>Fantasy</genre>
              <price>5.95</price>
              <publish_date>2001-09-10</publish_date>
              <description>The two daughters of Maeve, half-sisters,
              battle one another for control of England. Sequel to
              Oberon's Legacy.</description>
           </book>
           <book id= " bk106 " >
              <author>Randall, Cynthia</author>
              <title>Lover Birds</title>
              <genre>Romance</genre>
              <price>4.95</price>
              <publish_date>2000-09-02</publish_date>
              <description>When Carla meets Paul at an ornithology
              conference, tempers fly as feathers get ruffled.</description>
           </book>
           <book id= " bk107 " >
              <author>Thurman, Paula</author>
              <title>Splish Splash</title>
              <genre>Romance</genre>
              <price>4.95</price>
              <publish_date>2000-11-02</publish_date>
              <description>A deep sea diver finds true love twenty
              thousand leagues beneath the sea.</description>
           </book>
           <book id= " bk108 " >
              <author>Knorr, Stefan</author>
              <title>Creepy Crawlies</title>
              <genre>Horror</genre>
              <price>4.95</price>
              <publish_date>2000-12-06</publish_date>
              <description>An anthology of horror stories about roaches,
              centipedes, scorpions and other insects.</description>
           </book>
           <book id= " bk109 " >
              <author>Kress, Peter</author>
              <title>Paradox Lost</title>
              <genre>Science Fiction</genre>
              <price>6.95</price>
              <publish_date>2000-11-02</publish_date>
              <description>After an inadvertant trip through a Heisenberg
              Uncertainty Device, James Salway discovers the problems
              of being quantum.</description>
           </book>
           <book id= " bk110 " >
              <author>O'Brien, Tim</author>
              <title>Microsoft .NET: The Programming Bible</title>
              <genre>Computer</genre>
              <price>36.95</price>
              <publish_date>2000-12-09</publish_date>
              <description>Microsoft's .NET initiative is explored in
              detail in this deep programmer's reference.</description>
           </book>
           <book id= " bk111 " >
              <author>O'Brien, Tim</author>
              <title>MSXML3: A Comprehensive Guide</title>
              <genre>Computer</genre>
              <price>36.95</price>
              <publish_date>2000-12-01</publish_date>
              <description>The Microsoft MSXML3 parser is covered in
              detail, with attention to XML DOM interfaces, XSLT processing,
              SAX and more.</description>
           </book>
           <book id= " bk112 " >
              <author>Galos, Mike</author>
              <title>Visual Studio 7: A Comprehensive Guide</title>
              <genre>Computer</genre>
              <price>49.95</price>
              <publish_date>2001-04-16</publish_date>
              <description>Microsoft Visual Studio 7 is explored in depth,
              looking at how Visual Basic, Visual C++, C#, and ASP+ are
              integrated into a comprehensive development
              environment.</description>
           </book>
        </catalog>
        ---------- END SOURCE ----------

        CUSTOMER SUBMITTED WORKAROUND :
        Do not use the provided version of Xalan/Xerces within the JDK.

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                • Assignee:
                  joehw Joe Wang
                  Reporter:
                  webbuggrp Webbug Group
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                    Updated:
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