Here is the link to the JAXP (Java API for XML Processing) that is
included with the Java 1.5.x sdk. There are specifications,
documentation, FAQ's, etc available here.
http://java.sun.com/xml/jaxp/index.jsp
Sorry I couldn't help more than that :(
jason
-Original Message-
From: Craig Dixon [mailto:[EMAIL PROTECTED]
Sent: Monday, July 18, 2005 9:53 AM
To: Tomcat Users List
Subject: Tomcat 5.5.9: SAXParser error
I have the following configuration:
JDK: 1.5.0_03
Apache Web Server: 2.0.52
Tomcat: 5.5.9
Connector: mod_jk 1.2.14
Server OS: Windows Server 2003
I encounter the following problem:
Every time I update a JSP, then try to access it via a browser, I
encounter:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented
it from
fulfilling this request.
exception
javax.servlet.ServletException: Provider
org.apache.xerces.jaxp.SAXParserFactoryImpl could not be instantiated:
java.lang.NullPointerException
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
javax.xml.parsers.FactoryConfigurationError: Provider
org.apache.xerces.jaxp.SAXParserFactoryImpl could not be instantiated:
java.lang.NullPointerException
javax.xml.parsers.SAXParserFactory.newInstance(Unknown Source)
org.apache.taglibs.standard.tlv.JstlBaseTLV.validate(JstlBaseTLV.java:15
2)
org.apache.taglibs.standard.tlv.JstlCoreTLV.validate(JstlCoreTLV.java:96
)
org.apache.jasper.compiler.TagLibraryInfoImpl.validate(TagLibraryInfoImp
l.java:750)
org.apache.jasper.compiler.Validator.validateXmlView(Validator.java:1527
)
org.apache.jasper.compiler.Validator.validate(Validator.java:1495)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:157)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.ja
va:556)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.ja
va:293)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache
Tomcat/5.5.9 logs.
After seeing this message, I can restart Tomcat and the JSP functions
normally.
However, if I change the JSP, restart Tomcat before viewing the page,
then view
the page, I still get the error. For some reason, the error actually has
to be
thrown before restarting Tomcat fixes it. I know of no other fix.
If I change two separate JSPs, I have to view the first page (throwing
the
error), restart Tomcat, then view the second page (throwing the error
again),
then restart Tomcat again. It is not enough to throw it once and restart
to fix
all pages; the error apparently tied to each page.
I have discovered that I can make this error go away by applying the JDK
1.4.x
compatibility patch, even though my JDK is version 1.5.0_03. This,
however,
caused me to get the error:
java.lang.NoSuchMethodError:
org.w3c.dom.Node.getTextContent()Ljava/lang/String;
Presumably, the getTextContent() method was not present in JDK 1.4.x,
thus the
patch causes this error.
When I remove the patch, the NoSuchMethodError is resolved, but the
original
error returns.
I first posted this on Bugzilla (Bug 35720), where it was marked as
invalid, and I was referred to this list. I posted the error here, and
received no helpful information. When I learned of the compatibility
patch fix, I reopened the bug on Bugzilla, but was told:
We do not do user support. With Java 5, you're using the JAXP API as
implemented by your vendor, so look in their docs.We also only
support Tomcat on pristine JVM installations (no custom
extensions).
Please do not reopen the report.
I haven't done anything to my JVM except install it directly from Sun.
I've only customized Tomcat insofar as I have added the appropriate
jars for JSTL and JavaMail. I don't know what the JAXP API is, nor who
my vendor for it might be. I'm not even sure who I'm being told to ask
about this anymore!
Can somebody please at least steer me in the right direction with this?
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