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Posted to dev@xalan.apache.org by bu...@apache.org on 2002/07/18 18:56:13 UTC
DO NOT REPLY [Bug 10956] New: -
The function value-of throws a NullPointer exception when element is null.
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=10956
The function value-of throws a NullPointer exception when element is null.
Summary: The function value-of throws a NullPointer exception
when element is null.
Product: XalanJ2
Version: 2.4Dx
Platform: All
OS/Version: Other
Status: NEW
Severity: Major
Priority: Other
Component: org.apache.xalan.transformer
AssignedTo: xalan-dev@xml.apache.org
ReportedBy: jfarjona@jfarjona.com
Run the following XML:
<?xml version="1.0" encoding="UTF-8"?>
<componentinfo>
<component id="2" name="" type="outfitting">
<currentversion id="2" lastmodified="Jul 18, 2002 11:11:14 AM" modifiedby="Juan F
Arjona" name="" version="0.0"/>
<versions/>
<data expanded="true" expandid="6">
<outfitting expanded="true" expandid="5" version="0.0">
<isapdata expanded="true" expandid="4">
<outfittingworkbook expanded="true" expandid="3">
<outfittingweights expanded="true" expandid="1">
<strakes>0.0</strakes>
<risersupports>0.0</risersupports>
<fairleadsupports>0.0</fairleadsupports>
<fairings>0.0</fairings>
<chainjacksupports>0.0</chainjacksupports>
<chainlocker>0.0</chainlocker>
<winchfoundation>0.0</winchfoundation>
<topsidesinterface>0.0</topsidesinterface>
<trusshardtankinterface>0.0</trusshardtankinterface>
<trusskeeltankinterface>0.0</trusskeeltankinterface>
<jtubes>0.0</jtubes>
<riserguidetubes>0.0</riserguidetubes>
<miscellaneousequipment>0.0</miscellaneousequipment>
<electrical>0.0</electrical>
<hatchesandladders>0.0</hatchesandladders>
<boatlanding>0.0</boatlanding>
<fairleadandbendingshoe>0.0</fairleadandbendingshoe>
<chaininboardoffairleads>0.0</chaininboardoffairleads>
<tailchain>0.0</tailchain>
<chainjacksandsheaves>0.0</chainjacksandsheaves>
<hpu>0.0</hpu>
<winches>0.0</winches>
<piping>0.0</piping>
<ballastpumps>0.0</ballastpumps>
<caissons>0.0</caissons>
<liquidinpipingsystems>0.0</liquidinpipingsystems>
<anodes>0.0</anodes>
<painting>0.0</painting>
<marinegrowth>0.0</marinegrowth>
<othera>0.0</othera>
<otherb>0.0</otherb>
<otherc>0.0</otherc>
<otherd>0.0</otherd>
<totaloutfittingweight>0.0</totaloutfittingweight>
<outfittingkg>0.0</outfittingkg>
</outfittingweights>
<outfittinginput expanded="true" expandid="2">
<hulltype/>
<diameter>0.0</diameter>
<freeboard>0.0</freeboard>
<hardtankdepth>0.0</hardtankdepth>
<softtankheight>0.0</softtankheight>
<midsectionheight>0.0</midsectionheight>
<lengthcw>0.0</lengthcw>
<widthcw>0.0</widthcw>
<topsidenwells>0</topsidenwells>
<topsidevcg>0.0</topsidevcg>
<topsidetotalweight>0.0</topsidetotalweight>
<hardtanksteelweight>0.0</hardtanksteelweight>
<midsectionsteelweight>0.0</midsectionsteelweight>
<softtanksteelweight>0.0</softtanksteelweight>
<numlines>0</numlines>
<mooringfairleaddepth>0.0</mooringfairleaddepth>
<mooringchainweight>0.0</mooringchainweight>
</outfittinginput>
</outfittingworkbook>
</isapdata>
</outfitting>
</data>
</component>
<options allowexpand="true" edition="false" expandcommand="component_expand"
operation="Viewing" showheader="false"/>
</componentinfo>
through the XSL:
<?xml version="1.0" encoding="UTF-8"?>
<!--
$Id: showcomponent.xsl,v 1.13 2002/07/12 00:01:59 jfarjona Exp $
Document : componentinfo.xsl
Expected XML: See file componentinfo.xsd
Created on : June 18, 2002
Author : Juan F. Arjona
Comment
This stylesheet transforms the XML of a component into its presentation in
the webpage.
It produces a <div> tag containing the data for the component.
-->
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:fo="http://www.w3.org/1999/XSL/Format"
xmlns:lxslt="http://xml.apache.org/xslt" xmlns:akerext="akerext"
extension-element-prefixes="akerext">
<lxslt:component prefix="akerext" elements="uniquelog" functions="parentcount
getmaxdepth">
<lxslt:script lang="javaclass" src="com.aker.xsl.extensions"/>
</lxslt:component>
<xsl:output method="html" version="1.0" encoding="UTF-8"
omit-xml-declaration="no" standalone="no" indent="no"/>
<xsl:param name="maxdepth">
<xsl:value-of select="number(akerext:getmaxdepth(/))"/>
</xsl:param>
<xsl:param name="edition">
<xsl:value-of select="/componentinfo/options/@edition"/>
</xsl:param>
<xsl:template name="printtds">
<xsl:if test=".. != /componentinfo/component/data/*[1]">
<td width="20" bgcolor="DDDDDD">
<xsl:text disable-output-escaping="yes"><![CDATA[ ]]></xsl:text>
</td>
<xsl:for-each select="../">
<xsl:call-template name="printtds"/>
</xsl:for-each>
</xsl:if>
</xsl:template>
<xsl:template name="printxml">
<xsl:for-each select="*">
<xsl:variable name="chnum">
<xsl:value-of select="count(*)"/>
</xsl:variable>
<xsl:comment>Now in printxml, count is: <xsl:value-of select="$chnum"/></xsl:comment>
<xsl:variable name="depth">
<xsl:value-of select="akerext:parentcount(node())"/>
</xsl:variable>
<xsl:choose>
<xsl:when test="$chnum >= 1">
<tr>
<xsl:call-template name="printtds"/>
<td colspan="2" class="normalBold" valign="top" width="180" bgcolor="DDDDDD">
<xsl:attribute name="colspan"><xsl:value-of select="number($maxdepth) - number($depth)
+ number(5)"/></xsl:attribute>
<xsl:choose>
<xsl:when test="/componentinfo/options/@allowexpand = 'true'">
<a class="normalLink">
<xsl:attribute name="href">?<xsl:value-of select="/componentinfo/options/ @expandcommand"/>=<xsl:value-of
select="@expandid"/></xsl:attribute>
<xsl:choose>
<xsl:when test="@expanded = 'true'">-</xsl:when>
<xsl:otherwise>+</xsl:otherwise>
</xsl:choose>
<xsl:value-of select="name()"/>
</a>
</xsl:when>
<xsl:otherwise>
<span class="normalLink">
<xsl:value-of select="name()"/>
</span>
</xsl:otherwise>
</xsl:choose>
</td>
</tr>
<xsl:choose>
<xsl:when test="/componentinfo/options/@allowexpand = 'true'">
<xsl:if test="@expanded = 'true'">
<xsl:call-template name="printxml"/>
</xsl:if>
</xsl:when>
<xsl:otherwise>
<xsl:call-template name="printxml"/>
</xsl:otherwise>
</xsl:choose>
</xsl:when>
<xsl:when test="$chnum = 0">
<tr>
<xsl:call-template name="printtds"/>
<td colspan="2" class="normalBold" valign="top" width="180" bgcolor="DDDDDD">
<xsl:value-of select="name()"/>
</td>
<td class="normal" bgcolor="DDDDDD">
<xsl:attribute name="colspan"><xsl:value-of select="number($maxdepth) - number($depth)
+ number(3)"/></xsl:attribute>
Value: <span class="red10normal">
<xsl:choose>
<xsl:when test="($edition = 'true')">
<input type="text" size="10">
<xsl:attribute name="name">DTA_<xsl:value-of select="../@expandid"/>_<xsl:value-of
select="position()"/></xsl:attribute>
<xsl:attribute name="value"><xsl:value-of select="."/></xsl:attribute>
</input>
<xsl:if test="@uom">
<input type="text" size="5">
<xsl:attribute name="name"><xsl:value-of select="../@expandid"/><xsl:value-of
select="name()"/>uom</xsl:attribute>
<xsl:attribute name="value"><xsl:value-of select="@uom"/></xsl:attribute>
</input>
</xsl:if>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="node()/."/>
<xsl:value-of select="@uom"/>
</xsl:otherwise>
</xsl:choose>
</span>
</td>
</tr>
</xsl:when>
</xsl:choose>
</xsl:for-each>
</xsl:template>
<xsl:template match="/">
<xsl:comment>Edition is: <xsl:value-of select="$edition"/>
</xsl:comment>
<div ID="data" style="position: static; visibility: 'visible'; z-index:2;
width:535px; height:420px; overflow-y:auto;">
<table border="0" cellspacing="0" cellpadding="0" bgcolor="#EEEEEE" width="550">
<xsl:for-each select="/componentinfo/component">
<xsl:if test="/componentinfo/options/@showheader = 'true'">
<tr>
<td class="normal" valign="top" bgcolor="#CCCCCC">
<xsl:attribute name="colspan"><xsl:value-of select="number($maxdepth)+4"/></xsl:attribute>
<table border="0" cellspacing="0" cellpadding="0">
<tr valign="top">
<td width="180" class="normal" valign="top">
<xsl:value-of select="/componentinfo/options/@operation"/>
<br/>
<span class="red10normal">
<!-- Shows the first element of the data tree -->
<xsl:value-of select="name(./data/*[1])"/>
</span>
<br/>
<a href="componentsmain.jsp?editvalues=true" class="leftLinks">update</a>
</td>
<td width="250" class="normal" valign="top">
Version: <span class="red10normal">
<xsl:value-of select="version[1]/@version"/>
</span>
<br/>Modified on:<span class="red12normal">
<xsl:value-of select="version[1]/@lastmodified"/>
</span>
<br/>By:<span class="red12normal">
<xsl:value-of select="version[1]/@modifiedby"/>
</span>
</td>
</tr>
</table>
</td>
</tr>
</xsl:if>
<xsl:comment>
Count is: <xsl:value-of select="count(./data/*)"/>
name is: <xsl:value-of select="name(./data/*)"/>
</xsl:comment>
<xsl:for-each select="./data">
<xsl:call-template name="printxml"/>
</xsl:for-each>
</xsl:for-each>
</table>
</div>
</xsl:template>
</xsl:stylesheet>
Using XALAN-J 2.4.D1. Throws a NullPointer exception because the node HullType
is empty, will work if you put something on that node.