jackson序列化抛NoClassDefFoundError? 400 报错

jackson序列化抛NoClassDefFoundError? 400 报错 Exception in thread "main" java.lang.NoClassDefFoundError: com/sleepycat/db/DatabaseException
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Class.java:2531)
    at java.lang.Class.getDeclaredMethods(Class.java:1855)
    at org.codehaus.jackson.map.introspect.AnnotatedClass._addMemberMethods(AnnotatedClass.java:620)
    at org.codehaus.jackson.map.introspect.AnnotatedClass.resolveMemberMethods(AnnotatedClass.java:408)
    at org.codehaus.jackson.map.introspect.BasicClassIntrospector.classWithCreators(BasicClassIntrospector.java:185)
    at org.codehaus.jackson.map.introspect.BasicClassIntrospector.collectProperties(BasicClassIntrospector.java:157)
    at org.codehaus.jackson.map.introspect.BasicClassIntrospector.forCreation(BasicClassIntrospector.java:119)
    at org.codehaus.jackson.map.introspect.BasicClassIntrospector.forCreation(BasicClassIntrospector.java:16)
    at org.codehaus.jackson.map.DeserializationConfig.introspectForCreation(DeserializationConfig.java:877)
    at org.codehaus.jackson.map.deser.BasicDeserializerFactory.createMapDeserializer(BasicDeserializerFactory.java:357)
    at org.codehaus.jackson.map.deser.StdDeserializerProvider._createDeserializer(StdDeserializerProvider.java:380)
    at org.codehaus.jackson.map.deser.StdDeserializerProvider._createAndCache2(StdDeserializerProvider.java:310)
    at org.codehaus.jackson.map.deser.StdDeserializerProvider._createAndCacheValueDeserializer(StdDeserializerProvider.java:290)
    at org.codehaus.jackson.map.deser.StdDeserializerProvider.findValueDeserializer(StdDeserializerProvider.java:159)
    at org.codehaus.jackson.map.deser.StdDeserializerProvider.findTypedValueDeserializer(StdDeserializerProvider.java:180)
    at org.codehaus.jackson.map.ObjectMapper._findRootDeserializer(ObjectMapper.java:2829)
    at org.codehaus.jackson.map.ObjectMapper._readMapAndClose(ObjectMapper.java:2728)
    at org.codehaus.jackson.map.ObjectMapper.readValue(ObjectMapper.java:1863)
    at cn.xxx.xxx.util.JsonUtil.toBean(JsonUtil.java:70)
    at cn.xxx.xxx.util.RecordUser.InsertRecordUser(RecordUser.java:47)
    at cn.xxx.xxx.util.RecordUser.main(RecordUser.java:87)
Caused by: java.lang.ClassNotFoundException: com.sleepycat.db.DatabaseException
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)

    ... 22 more

有没有人遇到过这个问题？速出回答一下。jackson序列化时的出错。