JOSSO出错了、、、

配置 JOSSO出现出错登录时出现如下错误，
java.lang.RuntimeException: Outbound relaying failed. No Principal found. Verify your SSO Agent Configuration!
org.josso.tc60.agent.SSOAgentValve.invoke(SSOAgentValve.java:502)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445)
java.lang.Thread.run(Unknown Source)
日志里面java.lang.SecurityException: ログイン構成を検出できません。
at com.sun.security.auth.login.ConfigFile.<init>(Unknown Source)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at javax.security.auth.login.Configuration$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.login.Configuration.getConfiguration(Unknown Source)
at javax.security.auth.login.LoginContext$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.login.LoginContext.init(Unknown Source)
at javax.security.auth.login.LoginContext.<init>(Unknown Source)
at org.apache.catalina.realm.JAASRealm.authenticate(JAASRealm.java:348)
at org.josso.tc60.agent.CatalinaSSOAgent.authenticate(CatalinaSSOAgent.java:95)
at org.josso.agent.AbstractSSOAgent.processRequest(AbstractSSOAgent.java:335)
at org.josso.tc60.agent.SSOAgentValve.invoke(SSOAgentValve.java:496)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: ログイン構成を検出できません。
at com.sun.security.auth.login.ConfigFile.init(Unknown Source)
... 24 more