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Java.lang.IllegalArgumentException: addChild: Child name '/hisen' is not unique

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报错如下：

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27-Feb-2017 12:53:31.268 严重 [RMI TCP Connection(13)-127.0.0.1] org.apache.tomcat.util.modeler.BaseModelMBean.invoke Exception invoking method manageApp
 Java.lang.IllegalArgumentException: addChild:  Child name '/hisen' is not unique
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.Java:738)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.Java:728)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.Java:734)
	at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.Java:1702)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.Java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.Java:43)
	at Java.lang.reflect.Method.invoke(Method.Java:606)
	at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.Java:300)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.Java:819)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.Java:801)
	at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.Java:482)
	at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.Java:431)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.Java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.Java:43)
	at Java.lang.reflect.Method.invoke(Method.Java:606)
	at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.Java:300)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.Java:819)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.Java:801)
	at Javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.Java:1487)
	at Javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.Java:97)
	at Javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.Java:1328)
	at Javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.Java:1420)
	at Javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.Java:848)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.Java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.Java:43)
	at Java.lang.reflect.Method.invoke(Method.Java:606)
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.Java:322)
	at sun.rmi.transport.Transport$1.run(Transport.Java:177)
	at sun.rmi.transport.Transport$1.run(Transport.Java:174)
	at Java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.Java:173)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.Java:556)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.Java:811)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.Java:670)
	at Java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.Java:1145)
	at Java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.Java:615)
	at Java.lang.Thread.run(Thread.Java:744)

重要的是：

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org.apache.tomcat.util.modeler.BaseModelMBean.invoke Exception invoking method manageApp
 Java.lang.IllegalArgumentException: addChild:  Child name '/hisen' is not unique

IDEA解决办法

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