Java dom4j org/jaxen/NamespaceContext exception
dom4j, java
Solution
The Exception:
java.lang.ClassNotFoundException: org.jaxen.NamespaceContext
Maybe you forgot to include the `jaxen.jar` in your Java build's path.
For more specific instructions on using SAXReader to parse some XML and loop through the nodes: https://stackoverflow.com/a/24959790/445131
Problem
I have downloaded dom4j-1.6.1 and added it to java's build path. I am also familiar with java.lang.NoClassDefFoundError: org/saxpath/SAXPathException but I keep getting an exception. Enclosed a snippet: ``` public class Parser { public static void parse(final String path) throws Exception { final SAXReader reader = new SAXReader(); final Document document = reader.read(new File(path).toURI().toURL()); if (document == null) return; List list = document.selectNodes("/"); for (Object o : list) System.out.println(o); } } ``` When I run it, I get the following stack trace ``` Exception in thread "main" java.lang.NoClassDefFoundError: org/jaxen/NamespaceContext at org.dom4j.DocumentFactory.createXPath(DocumentFactory.java:230) at org.dom4j.tree.AbstractNode.createXPath(AbstractNode.java:207) at org.dom4j.tree.AbstractNode.selectNodes(AbstractNode.java:164) at Parser.parse(Parser.java:15) at Main.main(Main.java:6) Caused by: java.lang.ClassNotFoundException: org.jaxen.NamespaceContext at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) ... 5 more ``` Any clue what causes the error?