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java.lang.NullPointerException at org.josso.tc60.agent.SSOAgentValve.start(SSOAgentValve.java:216) at org.apache.catalina.core.StandardPipeline.start(StandardPipeline.java:233) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1066) at org.apache.catalina.core.StandardHost.start(StandardHost.java:822) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1061) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) at org.apache.catalina.core.StandardService.start(StandardService.java:525) at org.apache.catalina.core.StandardServer.start(StandardServer.java:761) at org.apache.catalina.startup.Catalina.start(Catalina.java:595) 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.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)