org.apache.xpath.objects.XRTreeFrag error

Hi list,

I am trying to process the following code:

I defined a variable like:
<xsl:variable name="objectProperty">
 <xsl:copy-of select="$model[@objectId=
$objectId]/forrest:property[@name=$name]"/>
</xsl:variable>

This variable $objectProperty is a frag like this:
      <forrest:property newId="221" name="mq1-preis">
        <euro>85</euro>
        <cent>00</cent>
      </forrest:property>

Then I call another template with this frag:
<xsl:call-template name="getText">
  <xsl:with-param name="setX">
   <xsl:copy-of select="$objectProperty"/>
  </xsl:with-param>
</xsl:call-template>

In the final template I have
<xsl:template name="getText">
  <xsl:param name="setX"><test>This is a test.</test></xsl:param>
...
  <xsl:copy-of select="$setX"/>
...
</xsl:template>

That is working fine because it will output:
      <forrest:property newId="221" name="mq1-preis">
        <euro>85</euro>
        <cent>00</cent>
      </forrest:property>

...but as soon I as I change the final template and use 
<xsl:value-of select="$setX/euro"/> or 
<xsl:copy-of select="$setX/euro"/>

I get  
javax.xml.transform.TransformerException: java.lang.ClassCastException:
org.apache.xpath.objects.XRTreeFrag

Can anybody tell me what is going wrong and why the XPath is not
working?

TIA

salu2
-- 
thorsten

"Together we stand, divided we fall!" 
Hey you (Pink Floyd)