Loosing xslt with variable when save in Jdev

Question

I am using JDeveloper 10.3.3.0.4157. BPEL is deployed on SOA 10.1.3.3.
As part of a BPEL process I have an xslt transform to populate my outgoing message with a generated guid.
<xsl:variable name="messageIDVariable" select="orcl:generate-guid()"/>
<corecom:EBMID>
<xsl:value-of select="$messageIDVariable"/>
</corecom:EBMID>
If I change any part of the transform (like adding new mappings etc), then I save it. I get this error:
(1):xpath-expression: Error: Variable or parameter "messageIDVariable" is not available for use
Subsequently the xsl file is saved with my code referring to the variable removed.
I have deployed this bpel process (with my variable code in it) and it executes successfully filling my output message with the generated guid. So why is Jdev unhappy with it? Is my XSLT incorrect? (I'm new to this stuff so that is very possible). What does "not available for use" mean? It is declared the line above where it is used.
Go easy on me...like I said I'm new to this stuff.
Thanks for any insight.

Answer 1

thanx this is the solution. With this construct
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:java="http://xml.apache.org/xalan/java" exclude-result-prefixes="java">
     <xsl:output method="html" indent="yes" encoding="iso-8859-1"/>
     <xsl:template match="/">
     <xsl:variable name="counter" select="java:java.util.Vector.new()"/>
     <xsl:variable name="temp1" select="java:add($counter,'1')"/>
     <xsl:variable name="temp2" select="java:add($counter,'2')"/>
     <xsl:variable name="temp3" select="java:add($counter,'3')"/>
     <xsl:variable name="temp4" select="$temp3"/>
     <xsl:value-of select="java:size($counter)"/>
     <xsl:value-of select="java:toString($counter)"/>
     </xsl:template>
</xsl:stylesheet>
at least the '3' is added to the vector.