Don't validate DTD on plugin unload (JM-164).

git-svn-id: http://svn.igniterealtime.org/svn/repos/messenger/trunk@1062 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/messenger/container/PluginServlet.java

@@ -167,7 +167,9 @@ public class PluginServlet extends HttpServlet {
         // lives in plugins/[pluginName]/web/web.xml
         String pluginName = webXML.getParentFile().getParentFile().getName();
         try {
-            SAXReader saxReader = new SAXReader();
+            SAXReader saxReader = new SAXReader(false);
+            saxReader.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd",
+                    false);
             Document doc = saxReader.read(webXML);
             // Find all <servelt-mapping> entries to discover name to URL mapping.
             List names = doc.selectNodes("//servlet-mapping");