我正在尝试在Google App Engine中运行JSP，并且我在控制台上收到以下错误消息。有人可以帮忙吗？我的classpath中有asm-3.3.jar。
WARNING: Error starting handlers
java.lang.NoSuchMethodError: org.objectweb.asm.ClassWriter.<init>(Z)V
at net.sf.cglib.core.DebuggingClassWriter.<init>(DebuggingClassWriter.java:47)
at net.sf.cglib.core.DefaultGeneratorStrategy.getClassWriter(DefaultGeneratorStrategy.java:30)
at net.sf.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:24)
at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:215)
at net.sf.cglib.core.KeyFactory$Generator.create(KeyFactory.java:145)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:117)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:108)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:104)
at org.hibernate.impl.SessionFactoryImpl.<clinit>(SessionFactoryImpl.java:321)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1005)
at com.configuration.ConfigurationListener.contextInitialized(ConfigurationListener.java:19)
at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:548)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:136)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at org.mortbay.jetty.Server.doStart(Server.java:224)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:196)
at com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:239)
at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:146)
at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:189)
at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
at com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServerMain.java:128)
at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:104)
答案 0 :(得分：0)
好的，那么Eclipse的类路径是什么？你在AE项目的WEB_INF / lib中有它吗？
答案 1 :(得分：0)
你看过这个吗？
Error : java.lang.NoSuchMethodError: org.objectweb.asm.ClassWriter.<init>(I)V
具体来说，它可能是您的cglib和asm-attrs版本的问题。
答案 2 :(得分：0)
我添加了asm-1.5.2.jar（早期版本），这解决了问题。