Bug in Xalan-Java with Node-conversion and Node-checks

[Rainer Döbele <do...@esteam.de>]

 Bug in Xalan-Java version 1.2.D01?

 I am trying to use the following evaluation inside a template

   <xsl:template match="field">
     <xsl:param name="value"/>
     <xsl:if test="$value/@id">[<xsl:value-of
select="$value/@id"/>]</xsl:if>
     ...

 I can call this template e.g. with the following syntax:

   <xsl:with-param name="value" select="."/>

 However what I cannot do is to pass another parameter like this:

   <xsl:param name="FIRSTNAME">rainer</xsl:param>
   <!-- apply the template -->
   <xsl:apply-templates select="field[@name='FIRSTNAME']">
      <xsl:with-param name="value" select="$FIRSTNAME"/>
      ...

 Xalan fails with the following exception message:
 "process failed:Can not convert #RTREEFRAG to a NodeList!"

 With the C-Version of calan this all works fine.

 As a workaround I tried to check whether $value is a node at all.
 But the check
	<xsl:if test="$value::node()">...
 results in another error.

 Any comments and suggestions are appreciated.
 Regards

 Rainer

 P.S. I have not been able to test this with Xalan-Java version 1.2.D02
because of another error.

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Re: Bug in Xalan-Java with Node-conversion and Node-checks

[Gary L Peskin <ga...@firstech.com>]

Rainer Döbele wrote:
> 
>  Bug in Xalan-Java version 1.2.D01?
> 
>  I am trying to use the following evaluation inside a template
> 
>    <xsl:template match="field">
>      <xsl:param name="value"/>
>      <xsl:if test="$value/@id">[<xsl:value-of
> select="$value/@id"/>]</xsl:if>
>      ...
> 
>  I can call this template e.g. with the following syntax:
> 
>    <xsl:with-param name="value" select="."/>
> 
>  However what I cannot do is to pass another parameter like this:
> 
>    <xsl:param name="FIRSTNAME">rainer</xsl:param>
>    <!-- apply the template -->
>    <xsl:apply-templates select="field[@name='FIRSTNAME']">
>       <xsl:with-param name="value" select="$FIRSTNAME"/>
>       ...
> 
>  Xalan fails with the following exception message:
>  "process failed:Can not convert #RTREEFRAG to a NodeList!"
> 
>  With the C-Version of calan this all works fine.
> 

This looks to me like XalanJ is issuing the correct error message. 
$FIRSTNAME is a result tree fragment since the xsl:param element in
which it is named has non-empty content.  Your xsl:with-param element
binds the variable $value to that result tree fragment.  Your xsl:if
element attempts to use the / operator on the result tree fragment which
is specifically prohibited in XSLT section 11.1.  I would say that
XalanJ is doing the right thing and XalanC is in error here.

Gary