java.lang.ClassNotFoundException: org.apache.commons.collections.map.LinkedMap

下面这个错误是少了commons-collections.jar包..

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2011-12-11 21:19:00? Refreshing org.springframework.web.context.support.XmlWebApplicationContext@1362012: display name [Root WebApplicationContext]; startup date [Sun Dec 11 21:19:00 CST 2011]; root of context hierarchy
2011-12-11 21:19:00? Class [org.apache.commons.collections.map.LinkedMap] or one of its dependencies is not present: java.lang.ClassNotFoundException: org.apache.commons.collections.map.LinkedMap

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下面这个错误是少了backport-util-concurrent-2.2.jar包.
2011-12-11 21:19:00? Class [edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap] or one of its dependencies is not present: java.lang.ClassNotFoundException: edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap

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