蛋疼的jar冲突
搭建开发环境的时候发现启动时候以下问题：
nException: Error creating bean with name 'appDataSource' defined in class path resource [applicationContext-dataSource.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.mchange.v2.c3p0.ComboPooledDataSource]: Constructor threw exception; nested exception is java.lang.LinkageError: loader constraint violation: loader (instance of org/mortbay/jetty/webapp/WebAppClassLoader) previously initiated loading for a different type with name "javax/management/MBeanServer":java.lang.LinkageError: loader constraint violation: loader (instance of org/mortbay/jetty/webapp/WebAppClassLoader) previously initiated loading for a different type with name "javax/management/MBeanServer"at java.lang.ClassLoader.defineClass1(Native Method)at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)at java.lang.ClassLoader.defineClass(ClassLoader.java:615)at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)at java.net.URLClassLoader.access$000(URLClassLoader.java:58)at java.net.URLClassLoader$1.run(URLClassLoader.java:197)at java.security.AccessController.doPrivileged(Native Method)at java.net.URLClassLoader.findClass(URLClassLoader.java:190)at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:392)at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:363)at com.mchange.v2.c3p0.management.ActiveManagementCoordinator.attemptManageC3P0Registry(ActiveManagementCoordinator.java:52)at com.mchange.v2.c3p0.C3P0Registry.attemptRegisterRegistryMBean(C3P0Registry.java:217)at com.mchange.v2.c3p0.C3P0Registry.reregister(C3P0Registry.java:242)at com.mchange.v2.c3p0.impl.PoolBackedDataSourceBase.<init>(PoolBackedDataSourceBase.java:228)at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.<init>(AbstractPoolBackedDataSource.java:62)at com.mchange.v2.c3p0.ComboPooledDataSource.<init>(ComboPooledDataSource.java:108)at com.mchange.v2.c3p0.ComboPooledDataSource.<init>(ComboPooledDataSource.java:104)at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)at java.lang.reflect.Constructor.newInstance(Constructor.java:513)at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:100)at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:61)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:877)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:839)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:440)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)at java.security.AccessController.doPrivileged(Native Method)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:269)at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:104)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1245)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)at java.security.AccessController.doPrivileged(Native Method)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:423)at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)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.jetty.plugin.Jetty6PluginWebAppContext.doStart(Jetty6PluginWebAppContext.java:115)at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156)at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)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 org.mortbay.jetty.plugin.Jetty6PluginServer.start(Jetty6PluginServer.java:132)at org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty(AbstractJettyMojo.java:441)at org.mortbay.jetty.plugin.AbstractJettyMojo.execute(AbstractJettyMojo.java:383)at org.mortbay.jetty.plugin.AbstractJettyRunMojo.execute(AbstractJettyRunMojo.java:210)at org.mortbay.jetty.plugin.Jetty6RunMojo.execute(Jetty6RunMojo.java:184)at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:319)at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)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.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)2012-01-10 11:26:37.301:INFO::Started SelectChannelConnector@0.0.0.0:8080
<exclusions><exclusion><groupId>com.sun.jmx</groupId><artifactId>jmxri</artifactId></exclusion></exclusions>
