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I have a template that was producing the exact output I need except that I need the elements to be optional. So, if an element is empty it should not be processed. I tried several different methods of testing to see if an element is empty...all of which work fine through XMLSpy (using the MSXML parser); however, will Xalan all of the methods break with the following exception: ERROR [2004-11-04 14:48:54,608] [woods][TFO] : PDFGenerator.generatePDF::Caught TransformerException; SystemID: file:///c:/Projects/Eneg/dev/templates/couponRows.xsl; Line#: 56; Column#: 41 javax.xml.transform.TransformerException: Unknown error in XPath at org.apache.xpath.XPath.bool(XPath.java:411) at org.apache.xalan.templates.ElemIf.execute(ElemIf.java:198) at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(Trans formerImpl.java:2182) at org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.j ava:678) Here are two samples of methods I tried: <xsl:if test="Determination[. != '']"> <xsl:apply-templates select="Determination"/> </xsl:if> <xsl:if test="string()"> <xsl:apply-templates select="Determination"/> </xsl:if> I also tried placing the Xalan jar in the java_home/lib/endorsed directory like the Xalan docs specify for JDK1.4 with the same results. Below is the EnvironmentCheck output from Xalan: C:\Projects\Eneg\dev\scripts\batch>java org.apache.xalan.xslt.EnvironmentCheck #---- BEGIN writeEnvironmentReport($Revision: 1.14 $): Useful stuff found: ---- version.DOM.draftlevel=2.0fd java.class.path=C:/Projects/Eneg/dev/dist/enegotiated.jar;C:/Projects/En eg/dev/d ist/enegotiated_web.jar;C:/bea/jdk141_05/lib/tools.jar;C:/Projects/Eneg/ dev/lib/ log4j-1.2.4.jar;C:/Projects/Eneg/dev/lib/xerces.jar;C:/Projects/Eneg/dev /lib/fop .jar;C:/Projects/Eneg/dev/lib/avalon-framework-4.1.5.jar;C:/Projects/Ene g/dev/li b/batik.jar;C:/bea/weblogic81/server/lib/jConnect.jar;C:/bea/weblogic81/ server/l ib/jconn2.jar;C:/Projects/Eneg/dev/java/ear/war/WEB-INF/classes version.JAXP=1.1 java.ext.dirs=C:\Program Files\Java\j2re1.4.2_03\lib\ext version.xerces2=not-present version.xerces1=Xerces 1.4.4 version.xalan2_2=Xalan Java 2.4.1 version.xalan1=not-present version.ant=not-present java.version=1.4.2_03 version.DOM=2.0 version.crimson=present-unknown-version sun.boot.class.path=C:\Program Files\Java\j2re1.4.2_03\lib\rt.jar;C:\Program Fil es\Java\j2re1.4.2_03\lib\i18n.jar;C:\Program Files\Java\j2re1.4.2_03\lib\sunrsas ign.jar;C:\Program Files\Java\j2re1.4.2_03\lib\jsse.jar;C:\Program Files\Java\j2 re1.4.2_03\lib\jce.jar;C:\Program Files\Java\j2re1.4.2_03\lib\charsets.jar;C:\Pr ogram Files\Java\j2re1.4.2_03\classes #---- BEGIN Listing XML-related jars in: foundclasses.java.class.path ---- xerces.jar-path=C:\Projects\Eneg\dev\lib\xerces.jar xerces.jar-apparent.version=xerces.jar from xalan-j_2_2_0 #----- END Listing XML-related jars in: foundclasses.java.class.path ----- version.SAX=2.0 version.xalan2x=Xalan Java 2.4.1 #----- END writeEnvironmentReport: Useful properties found: ----- # YAHOO! Your environment seems to be OK. Any ideas would be appreciated. Thanks, Ci-Ci
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