How to fix Tomcat5 XPathFactory#newInstance() failed to create an XPathFactory for the default object model: http://java.sun.com/jaxp/xpath/dom with the XPathFactoryConfigurationException: javax.xml.xpath.XPathFactoryConfigurationException: No XPathFctory implementation found for the object model: http://java.sun.com/jaxp/xpath/dom

Saw this exception on a RHEL5 box - our application stopped working after a yum update.

To fix it I deleted the symlink to /usr/share/java/xml-commons-apis.jar in /var/lib/tomcat5/common/endorsed and restarted tomcat.

The stack trace looked something like:

- XPathFactory#newInstance() failed to create an XPathFactory for the default object model: http://java.sun.com/jaxp/xpath/dom with the XPathFactoryConfigurationException: javax.xml.xpath.XPathFactoryConfigurationException: No XPathFctory implementation found for the object model: http://java.sun.com/jaxp/xpath/dom
java.lang.RuntimeException: XPathFactory#newInstance() failed to create an XPathFactory for the default object model: http://java.sun.com/jaxp/xpath/dom with the XPathFactoryConfigurationException: javax.xml.xpath.XPathFactoryConfigurationException: No XPathFctory implementation found for the object model: http://java.sun.com/jaxp/xpath/dom
at javax.xml.xpath.XPathFactory.newInstance(Unknown Source)
at com.sun.tools.xjc.reader.internalizer.Internalizer.(Internalizer.java:81)
at com.sun.tools.xjc.reader.internalizer.DOMForest.transform(DOMForest.java:448)
at com.sun.tools.xjc.api.impl.s2j.SchemaCompilerImpl.bind(SchemaCompilerImpl.java:221)
at org.apache.cxf.common.util.ReflectionInvokationHandler.invoke(ReflectionInvokationHandler.java:52)

How to Fix Tomcat5 on RHEL5 org.apache.xalan.processor.TransformerFactoryImpl not found

I got this exception trying to start a Grails app on a RHEL5 box using OpenJDK and Tomcat5, all installed from Yum.

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'annotationHandlerAdapter': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter]: Constructor threw exception; nested exception is javax.xml.transform.TransformerFactoryConfigurationError: Provider org.apache.xalan.processor.TransformerFactoryImpl not found at java.lang.Thread.run(Thread.java:636)

Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class
[org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter]: Constructor threw exception; nested exception is javax.xml.transform.TransformerFactoryConfigurationError: Provider org.apache.xalan.processor.TransformerFactoryImpl not found

To fix I did a yum install of xerces and xalan, created a symlink from $catalina_home/common/endorsed/xalan.jar to /usr/share/java/xalan-j2.jar and restarted Tomcat.