I have created sample sso wso2 program with help of existing code which I have downloaded from wso2 website and follow the same steps. But when I am executing my programm I am getting error
SEVERE: Exception starting filter SSOFilter java.lang.NullPointerException at org.wso2.carbon.identity.sso.agent.util.SSOAgentConfigs.isSAMLSSOLoginEnabled(SSOAgentConfigs.java:345) at org.wso2.carbon.identity.sso.agent.util.SSOAgentConfigs.initCheck(SSOAgentConfigs.java:222) at org.wso2.carbon.identity.sso.agent.SSOAgentFilter.init(SSOAgentFilter.java:53) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:279) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:260) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:105) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4854) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5546) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565) 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(Thre