java.lang.NoClassDefFoundError: - wrong name: -

am trying run java application, error thrown is

5 18:38:06,271 error [stderr] caused by: java.lang.noclassdeffounderror: com/lucene/search/lucenesearchmodule  (wrong name: com/util/search/lucenesearchmodule) 2013-05-05 18:38:06,271 error [stderr]  @ java.lang.classloader.defineclass1(native method) 

below java program code calls method -

package com.lucene.index; import com.lucene.search.lucenesearchmodule; public class luceneaccess { .... lucenesearchmodule.get(....); ... }  package com.lucene.search; public class lucenesearchmodule { .... } 

i have placed lucenesearchmodule class file under com/lucene/search & com/util/search,, not sure why error thrown

why tried putting class file in 2 locations?? remove file com/util/search. , give try.