Re: jaxp 1.4 on jre 1.4.2

From:

Matt Rose <matt.rose.at@gmail.com>

Newsgroups:

comp.lang.java.programmer

Date:

29 May 2007 08:41:08 -0700

Message-ID:

<1180453268.536302.66240@q69g2000hsb.googlegroups.com>

On May 29, 2:13 pm, Matt Rose <matt.rose...@gmail.com> wrote:

On May 25, 10:45 pm, Arne Vajh=F8j <a...@vajhoej.dk> wrote:

Matt Rose wrote:

I am trying to use the jaxp1.4 standalone download from java.net with
Sun JRE 1.4.2. Here is a minimal test class:

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathFactory;

import org.w3c.dom.Document;

public class TestJaxp {
   public static void main(String[] args) throws Exception {
           Document doc = DocumentBuilderFactory.newInstance()
                           .newDocumentBuilder().newDocument();
           XPath xpath = XPathFactory.newInstance().newXPath();
           xpath.evaluate("/", doc);
   }
}

It fails with:

java.lang.NoClassDefFoundError: com/sun/org/apache/xalan/internal/
extensions/ExpressionContext
My classpath consists of this class followed byjaxp-api.jar thenjaxp-
ri.jar.

Have you readhttp://java.sun.com/webservices/jaxp/reference/faqs/index.=

html

question 14 ?

Arne

I hadn't read that but I don't think it addresses my problem. I tried
fiddling with the settings as described and set it to both explicitly
use thejaxpxerces implementation (which it was doing by default) and
the JRE crimson implementation but received the same error on each
occasion.

The problem goes away if I execute it with a 1.5 JRE.

Matt

For the record, this is a bug in the packaging of the 1.4.1 release
that omitted a few classes needed to run on JRE1.4, one of which is
ExpressionContext. The JAXP folks are aware of it and I believe a fix
is likely soon.

Matt