Tomcat启动错误 Caused by: java.lang.AbstractMethodError

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#tomcat #initialization #servlet #performance #apache #library

本文记录了Apache Tomcat启动过程中遇到的问题及解决方法，详细分析了由于缺少Apache Tomcat Native库导致的性能问题，以及因jar包冲突引发的AbstractMethodError错误。

2011-3-21 10:53:00 org.apache.catalina.core.AprLifecycleListener init
信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not

found on the java.library.path: D:/Program Files/Java/jdk1.6.0

/bin;.;C:/WINDOWS/Sun/Java/bin;C:/WINDOWS/system32;C:/WINDOWS;D:/Program Files/Java/jdk1.6.0/jre/bin;D:/Program

Files/Java/jdk1.6.0/bin/../jre/bin/client;D:/Program

Files/Java/jdk1.6.0/bin/../jre/bin;C:/WINDOWS/system32;C:/WINDOWS;C:/WINDOWS/System32/Wbem;C:/Program

Files/Yuguo;C:/Program Files/MySQL/MySQL Server 5.1/bin;D:/Program Files/Java/jdk1.6.0/bin;D:/Program Files/groovy-

1.7.3/bin;D:/Program Files/maven/bin;C:/Program Files/Common Files/Thunder Network/KanKan/Codecs
2011-3-21 10:53:00 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2011-3-21 10:53:00 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 721 ms
2011-3-21 10:53:00 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2011-3-21 10:53:00 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.16
2011-3-21 10:53:01 org.apache.catalina.loader.WebappClassLoader validateJarFile
信息: validateJarFile(E:/workspace/exam/WebRoot/WEB-INF/lib/gwt-user.jar) - jar not loaded. See Servlet Spec 2.3,

section 9.7.2. Offending class: javax/servlet/Servlet.class
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: java.lang.AbstractMethodError
at org.apache.tomcat.util.digester.Digester.getXMLReader(Digester.java:992)
at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1644)
at org.apache.catalina.startup.TldConfig.tldScanStream(TldConfig.java:518)
at org.apache.catalina.startup.TldConfig.tldScanJar(TldConfig.java:476)
at org.apache.catalina.startup.TldConfig.execute(TldConfig.java:301)
at org.apache.catalina.core.StandardContext.processTlds(StandardContext.java:4441)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4248)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:516)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
... 6 more

原因：jar包冲突。