NoClassDefFoundError：org.slf4j.LoggerFactory是一个受限制的类 [英] NoClassDefFoundError: org.slf4j.LoggerFactory is a restricted class

问题描述

到目前为止，我还没有遇到任何问题，但现在每当我尝试运行开发服务器我得到一个 NoClassDefFoundError：org.slf4j.LoggerFactory是一个受限制的类

。

以下是控制台日志的摘录：

  ... 
 INFO cgadDevAppServerRunner  - 警告：失败JettyContainerService $ ApiProxyHandler @ 4e4ad8a3：java.lang.NoClassDefFoundError：org.slf4j。 LoggerFactory是一个受限制的类。有关更多详细信息，请参阅Google App Engine开发人员指南。 
 INFO cgadDevAppServerRunner  -  ago 28，2013 1:36:53 PM com.google.apphosting.utils.jetty.JettyLogger警告
 INFO cgadDevAppServerRunner  - 警告：错误启动处理程序
 INFO cgadDevAppServerRunner -  java.lang.NoClassDefFoundError：org.slf4j.LoggerFactory是一个受限制的类。有关更多详细信息，请参阅Google App Engine开发人员指南。 
 INFO cgadDevAppServerRunner  - 位于com.google.appengine.tools.development.agent.runtime.Runtime.reject（Runtime.java:51）
 INFO cgadDevAppServerRunner  - 位于com.starchu.guice.jsf。 core.GuiceJSFConfigurer。< clinit>（GuiceJSFConfigurer.java）
 INFO cgadDevAppServerRunner  -  at sun.reflect.NativeConstructorAccessorImpl.newInstance0（Native Method）
 INFO cgadDevAppServerRunner  -  at sun.reflect.NativeConstructorAccessorImpl.newInstance NativeConstructorAccessorImpl.java:57）
 INFO cgadDevAppServerRunner  -  at sun.reflect.DelegatingConstructorAccessorImpl.newInstance（DelegatingConstructorAccessorImpl.java:45）
 ... 
  

我试图做一个maven clean并且再次构建所有东西，但是我没有运气。

为什么会这样上课受限制？我怎么才能找出原因？

我使用的是JDK 1.7.0_25，maven 3.1.0，GAE SDK 1.8.3，lombok 0.12.0，slf4j-jdk14 -1.7.5

解决方案

我遇到过类似的问题，并将其恢复为JDK 1.7.0_21来解决它们。

存档的JDK下载

I am using maven for building a GAE/J web application.

Until now I haven't had any problems but now whenever I try to run the development server I get a NoClassDefFoundError: org.slf4j.LoggerFactory is a restricted class.

Here is an extract of the console log:

...
INFO  c.g.a.d.DevAppServerRunner - WARNING: failed JettyContainerService$ApiProxyHandler@4e4ad8a3: java.lang.NoClassDefFoundError: org.slf4j.LoggerFactory is a restricted class. Please see the Google  App Engine developer's guide for more details.
INFO  c.g.a.d.DevAppServerRunner - ago 28, 2013 1:36:53 PM com.google.apphosting.utils.jetty.JettyLogger warn
INFO  c.g.a.d.DevAppServerRunner - WARNING: Error starting handlers
INFO  c.g.a.d.DevAppServerRunner - java.lang.NoClassDefFoundError: org.slf4j.LoggerFactory is a restricted class. Please see the Google  App Engine developer's guide for more details.
INFO  c.g.a.d.DevAppServerRunner -         at com.google.appengine.tools.development.agent.runtime.Runtime.reject(Runtime.java:51)
INFO  c.g.a.d.DevAppServerRunner -         at com.starchu.guice.jsf.core.GuiceJSFConfigurer.<clinit>(GuiceJSFConfigurer.java)
INFO  c.g.a.d.DevAppServerRunner -         at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
INFO  c.g.a.d.DevAppServerRunner -         at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
INFO  c.g.a.d.DevAppServerRunner -         at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
...

I tried to do a maven clean and build everything again but I had no luck.

Why would this class be "restricted"? How can I find out the cause?

I am using JDK 1.7.0_25, maven 3.1.0, GAE SDK 1.8.3, lombok 0.12.0, slf4j-jdk14-1.7.5

解决方案

I had similar issues and reverted to JDK 1.7.0_21 to solve them.

Archived JDK downloads

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