tomcat热部署？遇到点问题，出现了两个错误，求帮忙看一下是什么错啊

2016-06-02 11:19:33 JRebel: Class 'org.apache.catalina.loader.WebappClassLoader' could not be processed by org.zeroturnaround.javarebel.integration.base.tomcat.WebappClassLoaderBaseCBP@null
2016-06-02 11:19:33 JRebel: ERROR org.zeroturnaround.bundled.javassist.NotFoundException: start(..) is not found in org.apache.catalina.loader.WebappClassLoader
at org.zeroturnaround.bundled.javassist.CtClassType.getDeclaredMethod(JRebel:1210)
at org.zeroturnaround.javarebel.integration.base.tomcat.WebappClassLoaderBaseCBP.processStart(JRebel:30)
at org.zeroturnaround.javarebel.integration.base.tomcat.WebappClassLoaderBaseCBP.process(JRebel:22)
at org.zeroturnaround.javarebel.integration.support.JavassistClassBytecodeProcessor.process(JRebel:70)
at com.zeroturnaround.javarebel.xB.a(JRebel:257)
at com.zeroturnaround.javarebel.xB.a(JRebel:246)
at com.zeroturnaround.javarebel.xB.a(JRebel:224)
at com.zeroturnaround.javarebel.SDKIntegrationImpl.runBytecodeProcessors(JRebel:128)
at com.zeroturnaround.javarebel.xl.transform(JRebel:45)
at java.lang.ClassLoader.defineClass(ClassLoader.java)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:190)
at org.apache.catalina.loader.WebappLoader.createClassLoader(WebappLoader.java:721)
at org.apache.catalina.loader.WebappLoader.startInternal(WebappLoader.java:582)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5449)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1260)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:2002)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)


2016-06-02 11:19:33 JRebel: Class 'org.apache.catalina.loader.WebappClassLoader' could not be processed by org.zeroturnaround.javarebel.integration.tomcat.WebappClassLoaderClassBytecodeProcessor@null
2016-06-02 11:19:33 JRebel: ERROR org.zeroturnaround.bundled.javassist.NotFoundException: findLoadedResource(..) is not found in org.apache.catalina.loader.WebappClassLoader
at org.zeroturnaround.bundled.javassist.CtClassType.getDeclaredMethod(JRebel:1210)
at org.zeroturnaround.javarebel.integration.tomcat.WebappClassLoaderClassBytecodeProcessor.processFinders(JRebel:92)
at org.zeroturnaround.javarebel.integration.tomcat.WebappClassLoaderClassBytecodeProcessor.process(JRebel:35)
at org.zeroturnaround.javarebel.integration.support.JavassistClassBytecodeProcessor.process(JRebel:70)
at com.zeroturnaround.javarebel.xB.a(JRebel:257)
at com.zeroturnaround.javarebel.xB.a(JRebel:246)
at com.zeroturnaround.javarebel.xB.a(JRebel:224)
at com.zeroturnaround.javarebel.SDKIntegrationImpl.runBytecodeProcessors(JRebel:128)
at com.zeroturnaround.javarebel.xl.transform(JRebel:45)
at java.lang.ClassLoader.defineClass(ClassLoader.java)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:190)
at org.apache.catalina.loader.WebappLoader.createClassLoader(WebappLoader.java:721)
at org.apache.catalina.loader.WebappLoader.startInternal(WebappLoader.java:582)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5449)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1260)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:2002)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)