cann't run example of transformXML in XML dic of jstl1.1 standard-examples
Today while learning JSP's transform mechanism using JSTL, i found that the example of transformXML in XML dic of jstl1.1 standard-examples could not be run, the error message followed as:
javax.servlet.ServletException: org/apache/xml/serializer/SerializerTrace
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:848)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:781)
org.apache.jsp.xml.TransformWithInclusion_jsp._jspService(org.apache.jsp.xml.TransformWithInclusion_jsp:81)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
java.lang.NoClassDefFoundError: org/apache/xml/serializer/SerializerTrace
java.lang.ClassLoader.defineClass1(Native Method)
java.lang.ClassLoader.defineClass(Unknown Source)
java.security.SecureClassLoader.defineClass(Unknown Source)
org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1650)
org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:856)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1305)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1187)
java.lang.ClassLoader.loadClassInternal(Unknown Source)
org.apache.xalan.processor.ProcessorStylesheetElement.getStylesheetRoot(ProcessorStylesheetElement.java:121)
org.apache.xalan.processor.ProcessorStylesheetElement.startElement(ProcessorStylesheetElement.java:72)
org.apache.xalan.processor.StylesheetHandler.startElement(StylesheetHandler.java:623)
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown Source)
com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(Unknown Source)
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFactoryImpl.java:920)
org.apache.xalan.processor.TransformerFactoryImpl.newTransformer(TransformerFactoryImpl.java:774)
org.apache.taglibs.standard.tag.common.xml.TransformSupport.doStartTag(TransformSupport.java:145)
org.apache.jsp.xml.TransformWithInclusion_jsp._jspx_meth_x_transform_0(org.apache.jsp.xml.TransformWithInclusion_jsp:180)
org.apache.jsp.xml.TransformWithInclusion_jsp._jspService(org.apache.jsp.xml.TransformWithInclusion_jsp:73)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
it seems that the class "org.apache.xml.serializer.SerializerTrace" is missing, is it? and i have add the path of "xalan.jar" in xalan-j_2_7_0 dic to the "CLASSPATH" enviroment parameter, but the class of "org.apache.xml.serializer.SerializerTrace" could not be found at that xalan.jar file.
could anyone help me overcome this error, thanks.
