idea 通过GIT 下载的公司项目 启动tomcat报错 打断点发现 System.getSecurityManager() 返回值为null 求大神帮忙 拜谢！！
报错信息：
严重: One or more listeners failed to start. Full details will be found in the appropriate container log file
2018-10-22 18:00:10 org.apache.catalina.core.StandardContext startInternal
严重: Context [/ais] startup failed due to previous errors
2018-10-22 18:00:10 org.apache.catalina.loader.WebappClassLoaderBase clearReferencesJdbc
严重: The web application [/ais] registered the JDBC driver [oracle.jdbc.driver.OracleDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
2018-10-22 18:00:10 org.apache.catalina.loader.WebappClassLoaderBase checkThreadLocalMapForLeaks
严重: The web application [/ais] created a ThreadLocal with key of type java.lang.ThreadLocal and a value of type org.apache.cxf.bus.CXFBusImpl but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
严重: Exception sending context initialized event to listener instance of class ais.framework.listener.PicListener
java.lang.NullPointerException
at java.io.File.(File.java:222)
at ais.framework.listener.PicListener.contextInitialized(PicListener.java:37)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5157)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5680)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:1017)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:993)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1900)
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.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:835)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:771)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:619)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:566)
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.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:835)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:771)
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1455)
at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:75)
at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1296)
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1388)
at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:819)
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 sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:303)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:695)
