Struts error – NoSuchMethodError : Digester.parse(Ljava/net/URL;)Ljava/lang/Object
Published: May 3, 2010 , Updated: August 9, 2010 , Author: mkyong
Problem
During the Struts initialization, it hits the following error messages.
SEVERE: Unable to initialize Struts ActionServlet due to an unexpected exception or error thrown, so marking the servlet as unavailable. Most likely, this is due to an incorrect or missing library dependency. java.lang.NoSuchMethodError: org.apache.commons.digester.Digester.parse(Ljava/net/URL;)Ljava/lang/Object; at org.apache.commons.chain.config.ConfigParser.parse(ConfigParser.java:190) at org.apache.struts.action.ActionServlet.initChain(ActionServlet.java:1687)
Solution
This is caused by certain method is not found in the commons digester library. You need to upgrade your commons-digester.jar to latest version.
In this case, I’m using “Struts 1.3.10 + commons-digester-1.6.jar + struts-tiles 1.3.10″ combination, and hits the above error message. After upgraded to the latest commons-digester-2.0.jar, the error message is gone.
SEVERE: Unable to initialize Struts ActionServlet due to an unexpected exception or error thrown, so marking the servlet as unavailable. Most likely, this is due to an incorrect or missing library dependency.
java.lang.NoClassDefFoundError: org/apache/commons/chain/config/ConfigParser
at org.apache.struts.action.ActionServlet.initChain(ActionServlet.java:1680)
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:350)
at javax.servlet.GenericServlet.init(GenericServlet.java:160)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1190)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1103)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1010)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4957)
at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5284)
at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5279)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.chain.config.ConfigParser
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521)
… 14 more
Anyone can helps me. I get stuck with this one. I follow step by step this example
http://www.mkyong.com/spring/maven-spring-hibernate-mysql-example/
Although i have added all of neccessary jars.
yes, after changing to new *.jar… the problem was solved..