java.lang.ClassNotFoundException：org.codehaus.jackson.map.JsonSerializableWithType

Posted 2023-02-26

【中文标题】java.lang.ClassNotFoundException：org.codehaus.jackson.map.JsonSerializableWithType

【英文标题】：java.lang.ClassNotFoundException: org.codehaus.jackson.map.JsonSerializableWithType

【发布时间】：2013-09-30 20:32:55

【问题描述】：

我的构建路径中有 Jackson 2.2.3，但我仍然收到此错误。有谁知道为什么？

com.sun.jersey.core.spi.component.ProviderFactory __getComponentProvider: The provider class, class com.sun.jersey.json.impl.provider.entity.JSONWithPaddingProvider, could not be instantiated. Processing will continue but the class will not be utilized
java.lang.SecurityException: Unable to get members for class com.sun.jersey.json.impl.provider.entity.JSONWithPaddingProvider
    at com.google.appengine.runtime.Request.process-244548b7ddf4520b(Request.java)
    at java.lang.Class.getDeclaredMethods(Class.java:256)
    at com.sun.jersey.core.reflection.MethodList.getAllDeclaredMethods(MethodList.java:70)
    at com.sun.jersey.core.reflection.MethodList.<init>(MethodList.java:64)
    at com.sun.jersey.core.spi.component.ComponentConstructor.getPostConstructMethods(ComponentConstructor.java:131)
    at com.sun.jersey.core.spi.component.ComponentConstructor.<init>(ComponentConstructor.java:123)
    at com.sun.jersey.core.spi.component.ProviderFactory.__getComponentProvider(ProviderFactory.java:165)
    at com.sun.jersey.core.spi.component.ProviderFactory.getComponentProvider(ProviderFactory.java:137)
    at com.sun.jersey.core.spi.component.ProviderServices.getComponent(ProviderServices.java:256)
    at com.sun.jersey.core.spi.component.ProviderServices.getServices(ProviderServices.java:160)
    at com.sun.jersey.core.spi.factory.MessageBodyFactory.initWriters(MessageBodyFactory.java:207)
    at com.sun.jersey.core.spi.factory.MessageBodyFactory.init(MessageBodyFactory.java:163)
    at com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1277)
    at com.sun.jersey.server.impl.application.WebApplicationImpl.access$700(WebApplicationImpl.java:169)
    at com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:775)
    at com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:771)
    at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:193)
    at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:771)
    at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:766)
    at com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:488)
    at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:318)
    at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:609)
    at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:210)
    at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:373)
    at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:556)
    at javax.servlet.GenericServlet.init(GenericServlet.java:212)
    at org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:440)
    at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:263)
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
    at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:685)
    at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
    at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
    at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
    at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
    at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:435)
    at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:442)
    at com.google.tracing.CurrentContext.runInContext(CurrentContext.java:186)
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:306)
    at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:298)
    at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:439)
    at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    ... 41 more
Caused by: java.lang.NoClassDefFoundError: org/codehaus/jackson/map/JsonSerializableWithType
    at com.google.appengine.runtime.Request.process-244548b7ddf4520b(Request.java)
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:794)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
    at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
    ... 43 more
Caused by: java.lang.ClassNotFoundException: org.codehaus.jackson.map.JsonSerializableWithType
    at com.google.appengine.runtime.Request.process-244548b7ddf4520b(Request.java)
    ... 41 more

【参考方案1】：

异常表示其他一些库或框架正在使用 Jackson 1.x，并且需要 1.x jar。您正在使用 Jackson 2.x，其中的类位于 com.fasterxml.jackson 包中；但根据例外情况，需要org.codehaus.jackson 中的那些。

【讨论】：

这应该是正确的答案。此错误的一个原因可能是您定义了错误的导入，例如而在eclipse中组织导入。

【参考方案2】：

您需要在类路径中添加jackson-mapper-asl。

你可以找到它here

【讨论】：

在有点类似的错误中，虽然我的类路径中有 jackson-mapper-asl-1.9.2.jar 我得到了类似的错误，更多细节可以在***.com/questions/39454052/…

找到

OP 使用的是 Jackson 2，这个类似乎更多地与 Jackson 1.x 中的情况有关（注意旧的包名称）。我发现@StaxMan 的回答更准确。

【参考方案3】：

即使您设置了构建路径，您也必须在运行时添加类路径。 在 eclipse 中检查部署程序集

Deployment Assembly