jar包冲突案例分析.md ###1. 错误现象，第一个错误是

2015-05-22 17:21:27.304:WARN:oejuc.AbstractLifeCycle:main: FAILED o.e.j.m.p.JettyWebAppContext@3e6534e7{/,[file:/C:/code.point/source/point-web/src/main/webapp/],STARTING}{[file:/C:/code.point/source/point-web/src/main/webapp/]}: java.lang.NoSuchMethodError: net.bull.javamelody.Log4JAppender.setThreshold(Lorg/apache/log4j/Priority;)Vjava.lang.NoSuchMethodError: net.bull.javamelody.Log4JAppender.setThreshold(Lorg/apache/log4j/Priority;)V    at net.bull.javamelody.Log4JAppender.
    
     (Log4JAppender.java:42)    at net.bull.javamelody.Log4JAppender.
     
      (Log4JAppender.java:34)    at net.bull.javamelody.FilterContext.initLogs(FilterContext.java:280)    at net.bull.javamelody.FilterContext.
      
       (FilterContext.java:69)    at net.bull.javamelody.MonitoringFilter.init(MonitoringFilter.java:110)    at org.eclipse.jetty.servlet.FilterHolder.initialize(FilterHolder.java:138)    at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:852)    at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:298)    at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1349)    at org.eclipse.jetty.maven.plugin.JettyWebAppContext.startWebapp(JettyWebAppContext.java:296)
      
     
    

###2. 异常分析 log4j错误；去掉MonitoringFilter的启动正常 原来一直运行正常，最近有哪些改动 增加jar：java-uuid-generator 分析间接依赖 ###3. 解决方案 去掉 java-uuid-generator 的log4j依赖

                
     
      com.fasterxml.uuid
                 
     
      java-uuid-generator
                 
     
      3.1.3
                 
                     
                          
       
        log4j
                           
       
        log4j