DO NOT REPLY [Bug 18351] New: - strange behaviour with xsl:choose embedded in func:function

[bugzilla]

DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG 
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
<http://nagoya.apache.org/bugzilla/show_bug.cgi?id=18351>.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND 
INSERTED IN THE BUG DATABASE.

http://nagoya.apache.org/bugzilla/show_bug.cgi?id=18351

strange behaviour with xsl:choose embedded in func:function

           Summary: strange behaviour with xsl:choose embedded in
                    func:function
           Product: XalanJ2
           Version: 2.5Dx
          Platform: Macintosh
        OS/Version: MacOS X
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: org.apache.xalan.extensions
        AssignedTo: [EMAIL PROTECTED]
        ReportedBy: [EMAIL PROTECTED]


I'm trying to transform this
<?xml version="1.0" encoding="utf-8"?>
<DatabaseSchema>
  <Table Type="A" Name="Foo"/>
  <Table Type="B" Name="Bar"/>
  <Table Type="A" Name="FooBar"/>
  <Table Type="B" Name="BarFoo"/>
</DatabaseSchema>

with the following stylesheet
<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:xalan="http://xml.apache.org/xslt";
xmlns:redirect="http://xml.apache.org/xalan/redirect";
xmlns:func="http://exslt.org/functions"; xmlns:my="urn:my"
  extension-element-prefixes="redirect func" exclude-result-prefixes="my">
<xsl:output method="html" indent="yes" encoding="utf-8" xalan:indent-amount="2"/>

<func:function name="my:test">
  <xsl:param name="table"/>
  <xsl:param name="type"/>
  <xsl:choose>
  <xsl:when test="$type='B'">
  <func:result select="2"/>
  </xsl:when>
  <xsl:when test="$type='A'">
  <func:result select="1"/>
  </xsl:when>
  <xsl:otherwise>
    <xsl:message terminate="yes">
    Error
    </xsl:message>
  </xsl:otherwise>
  </xsl:choose>
</func:function>

<xsl:template match="Table">
  <xsl:value-of select="my:test(@Name, @Type)"/>
</xsl:template>

<xsl:template match="/">
  <xsl:apply-templates select="DatabaseSchema/Table"/>
</xsl:template>

</xsl:stylesheet>

Trying to transform this, I get the following error:
file:///Users/simon/Documents/LEDA/workspace/Data%20Entry%20Tool/src/de/ol/offis/leda/data/test.xsl;
Zeile #22; Spalte #17; XSLT-Fehler
(javax.xml.transform.TransformerConfigurationException):
javax.xml.transform.TransformerException:
javax.xml.transform.TransformerException: misplaced literal result in a
func:function container.

(line 22, col. 17 is right behind /func:function)

The transformation doesn't yield an exception if I leave the xsl:otherwise
element out, however, the output is
22
instead of the output to expect:
1212

However, if I use xsl:if elements instead of the xsl:choose, as in

<func:function name="my:test">
  <xsl:param name="table"/>
  <xsl:param name="type"/>
  <xsl:if test="$type='B'">
  <func:result select="2"/>
  </xsl:if>
  <xsl:if test="$type='A'">
  <func:result select="1"/>
  </xsl:if>
</func:function>

I get the following error:
file:///Users/simon/Documents/LEDA/workspace/Data%20Entry%20Tool/src/de/ol/offis/leda/data/test.xsl;
Zeile #12; Spalte #28; XSLT-Fehler (javax.xml.transform.TransformerException):
Unbekannter Fehler in XPath.

(meaning: Unknown error in XPath) Line 12, column 28 is at the end of the line
containing the second <xsl:if

Using:
Xalan-J 2.5D1
Xerces-J 2.3.0
Java 2 SDK 1.4.1_01