NoSuchMethodError: javax.xml.parsers.DocumentBuilderFactory.newInstance

This is the error from running a webapp deployed to appserver:

java.lang.NoSuchMethodError: javax.xml.parsers.DocumentBuilderFactory.newInstance(Ljava/lang/String;Ljava/lang/ClassLoader;)Ljavax/xml/parsers/DocumentBuilderFactory;
The cause: there is an xml-apis.jar under JBOSS_HOME/lib/endorsed directory, and so javax.xml.* classes in xml-apis.jar override those same class from JDK. In particular, DocumentBuilderFactory class in xml-apis.jar is of old version and only has newInstance() method, but not newInstance(String, ClassLoader) method. DocumentBuilderFactory.newInstance(String factoryClassName, ClassLoader) is introduced in Java 6.

The fix is to remove xml-apis.jar from JBOSS_HOME/lib/endorsed directory. XML parser has been in Java proper for a long time, and there is no need for xml-apis.jar in most modern applications.


Anonymous said...

Thank you!! Lost a whole day to this problem and this post finally solved it!

FloridaStream said...

Very userfull info man, now in 2015 you saved my life for error java.lang.NoSuchMethodError: javax.xml.parsers.SAXParser.getXMLReader, i remove the ompile 'dom4j:dom4j:20040902.021138' and my apk work fine, tks. I love you =D

Anna said...

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