When i run the application in Tomcat i get the following error.

HTTP Status 500 -

--------------------------------------------------------------------------------

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Servlet execution threw an exception


root cause

java.lang.NoSuchFieldError: EMPTY_ORDERED_ITERATOR
org.apache.commons.collections.map.AbstractLinkedMap.createValuesIterator(AbstractLinkedMap.java:482)
org.apache.commons.collections.map.AbstractHashedMap$Values.iterator(AbstractHashedMap.java:958)
java.util.AbstractCollection.toArray(Unknown Source)
java.util.ArrayList.<init>(Unknown Source)
org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:406)
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:305)
org.springframework.web.context.support.AbstractRefreshableWebApplicationContext.refresh(AbstractRefreshableWebApplicationContext.java:134)
org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:246)
org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:184)
org.springframework.web.context.ContextLoaderServlet.init(ContextLoaderServlet.java:83)
javax.servlet.GenericServlet.init(GenericServlet.java:212)
org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:926)
org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:889)
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149)
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120)
org.apache.catalina.startup.Catalina.start(Catalina.java:552)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)


note The full stack trace of the root cause is available in the Apache Tomcat/5.5.26 logs.

Can anyone please help me to fix the error
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