XSLT: Call to extension failed....Urgent!!!

[Rajesh Balu]

I am trying to call a java method during XSL transformation:
My XSL Looks like this:

<xsl:stylesheet version="1.0"
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
                xmlns:lxslt="http://xml.apache.org/xslt";
                xmlns:chart="class:{packages list}.ChartEngine"
                extension-element-prefixes="chart">

<lxslt:component prefix="chart" elements="createPieChart createGraph">
  <lxslt:script lang="javaclass" src="class:{packages list}.ChartEngine"/>
</lxslt:component>
.
.
.
<xsl:when test="count($pieData) &gt; 0">
      <chart:createPieChart/>
</xsl:when>

I m getting the error:
Call to extension element failed: {packages list}.ChartEngine

What is problem. This was working on a Weblogic on Unix and Win. The problem
is when the appserver is changed to Inprise App Server on Unix. Please
help....Thanks in advance

Rajesh.