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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 37483] New: - NPE in JspDocumentParser when processing characters in a tag file
Date Sun, 13 Nov 2005 11:48:27 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=37483

           Summary: NPE in JspDocumentParser when processing characters in a
                    tag file
           Product: Tomcat 5
           Version: Nightly Build
          Platform: Macintosh
        OS/Version: Mac OS X 10.4
            Status: NEW
          Severity: major
          Priority: P2
         Component: Jasper
        AssignedTo: tomcat-dev@jakarta.apache.org
        ReportedBy: hn@complex.eng.hokudai.ac.jp


Compilation of the following JSP document:

-----------------------
test1.jspx:
<tags:bomb xmlns:tags="urn:jsptagdir:/WEB-INF/tags"/>

WEB-INF/tags/tag1.tagx:
<html xmlns="http://www.w3.org/1999/xhtml"><head></head><body><p>Tag1</p></body></
html>
-----------------------

causes an exception: (though it is JasperException in the log file)

java.lang.NullPointerException
        at org.apache.jasper.compiler.JspDocumentParser.processChars(JspDocumentParser.java:507)
        at org.apache.jasper.compiler.JspDocumentParser.endElement(JspDocumentParser.java:608)
        at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement
(AbstractSAXParser.java:633)
        at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanEndElement
(XMLNSDocumentScannerImpl.java:719)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl
$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1685)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument
(XMLDocumentFragmentScannerImpl.java:368)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse
(XML11Configuration.java:834)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse
(XML11Configuration.java:764)
...

If I add the following code, it seems working well.

JspDocumentParser:
private void processChars() throws SAXException {

    if (charBuffer == null) {
        return;
    }

    if (directivesOnly) {    // 
        return;                  // Add these lines.
    }                                //

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