deploying gwt web application on jetty

Posted by Azhar on Stack Overflow See other posts from Stack Overflow or by Azhar
Published on 2010-12-24T11:19:49Z Indexed on 2010/12/29 5:54 UTC
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Hi I am deploying my web application created in Gwt on the jetty. I have used mongodb as my database.After starting the server it starts deploying the weapp.war and gives following error -

694 [main] INFO org.mortbay.log - Extract /usr/share/jetty/webapps/myapp.war to /tmp/Jetty_0_0_0_0_8090_myapp.war__myapp__n6yltk/webapp
3567 [main] WARN org.mortbay.log - failed Startup: java.lang.LinkageError: loader constraint violation: loader (instance of org/mortbay/jetty/webapp/WebAppClassLoader) previously initiated loading for a different type with name "javax/management/MBeanServer"
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
    at java.net.URLClassLoader.access$000(URLClassLoader.java:73)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:212)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
    at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:392)
    at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:363)
    at com.mongodb.DBPortPool$Holder.get(DBPortPool.java:58)
    at com.mongodb.DBTCPConnector._set(DBTCPConnector.java:458)
    at com.mongodb.DBTCPConnector.<init>(DBTCPConnector.java:46)
    at com.mongodb.Mongo.<init>(Mongo.java:137)
    at com.mongodb.Mongo.<init>(Mongo.java:123)

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