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java.lang.NullPointerException: 	at org.apache.jsp.idpmgt.idp_002dmgt_002dedit_jsp._jspService(idp_002dmgt_002dedit_jsp.java:345)	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)	at org.wso2.carbon.ui.JspServlet.service(JspServlet.java:155)	at org.wso2.carbon.ui.TilesJspServlet.service(TilesJspServlet.java:80)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)	at org.eclipse.equinox.http.helper.ContextPathServletAdaptor.service(ContextPathServletAdaptor.java:37)	at org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61)	at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:128)	at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:68)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)	at org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.service(DelegationServlet.java:68)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:604)	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:543)	at org.eclipse.equinox.http.servlet.internal.RequestDispatcherAdaptor.include(RequestDispatcherAdaptor.java:37)	at org.eclipse.equinox.http.helper.ContextPathServletAdaptor$RequestDispatcherAdaptor.include(ContextPathServletAdaptor.java:369)	at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:954)	at org.apache.jasper.runtime.PageContextImpl.doInclude(PageContextImpl.java:688)	at org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:682)	at sun.reflect.GeneratedMethodAccessor57.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:498)	at org.apache.tiles.jsp.context.JspUtil.doInclude(JspUtil.java:87)	at org.apache.tiles.jsp.context.JspTilesRequestContext.include(JspTilesRequestContext.java:88)	at org.apache.tiles.jsp.context.JspTilesRequestContext.dispatch(JspTilesRequestContext.java:82)	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:465)	at org.apache.tiles.jsp.taglib.InsertAttributeTag.render(InsertAttributeTag.java:140)	at org.apache.tiles.jsp.taglib.InsertAttributeTag.render(InsertAttributeTag.java:117)	at org.apache.tiles.jsp.taglib.RenderTagSupport.execute(RenderTagSupport.java:171)	at org.apache.tiles.jsp.taglib.RoleSecurityTagSupport.doEndTag(RoleSecurityTagSupport.java:75)	at org.apache.tiles.jsp.taglib.ContainerTagSupport.doEndTag(ContainerTagSupport.java:80)	at org.apache.jsp.admin.layout.template_jsp._jspx_meth_tiles_005finsertAttribute_005f7(template_jsp.java:640)	at org.apache.jsp.admin.layout.template_jsp._jspService(template_jsp.java:356)	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)	at org.wso2.carbon.ui.JspServlet.service(JspServlet.java:155)	at org.wso2.carbon.ui.TilesJspServlet.service(TilesJspServlet.java:80)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)	at org.eclipse.equinox.http.helper.ContextPathServletAdaptor.service(ContextPathServletAdaptor.java:37)	at org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61)	at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:128)	at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:68)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)	at org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.service(DelegationServlet.java:68)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:486)	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:411)	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:338)	at org.eclipse.equinox.http.servlet.internal.RequestDispatcherAdaptor.forward(RequestDispatcherAdaptor.java:30)	at org.eclipse.equinox.http.helper.ContextPathServletAdaptor$RequestDispatcherAdaptor.forward(ContextPathServletAdaptor.java:362)	at org.apache.tiles.servlet.context.ServletTilesRequestContext.forward(ServletTilesRequestContext.java:198)	at org.apache.tiles.servlet.context.ServletTilesRequestContext.dispatch(ServletTilesRequestContext.java:185)	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:419)	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:370)	at org.wso2.carbon.ui.action.ActionHelper.render(ActionHelper.java:52)	at org.wso2.carbon.ui.TilesJspServlet.service(TilesJspServlet.java:101)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)	at org.eclipse.equinox.http.helper.ContextPathServletAdaptor.service(ContextPathServletAdaptor.java:37)	at org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61)	at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:128)	at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:68)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)	at org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.service(DelegationServlet.java:68)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.wso2.carbon.ui.filters.CSRFPreventionFilter.doFilter(CSRFPreventionFilter.java:88)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.wso2.carbon.ui.filters.CRLFPreventionFilter.doFilter(CRLFPreventionFilter.java:59)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.wso2.carbon.tomcat.ext.filter.CharacterSetFilter.doFilter(CharacterSetFilter.java:61)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)	at org.wso2.carbon.tomcat.ext.valves.CompositeValve.continueInvocation(CompositeValve.java:99)	at org.wso2.carbon.tomcat.ext.valves.CarbonTomcatValve$1.invoke(CarbonTomcatValve.java:47)	at org.wso2.carbon.webapp.mgt.TenantLazyLoaderValve.invoke(TenantLazyLoaderValve.java:57)	at org.wso2.carbon.tomcat.ext.valves.TomcatValveContainer.invokeValves(TomcatValveContainer.java:47)	at org.wso2.carbon.tomcat.ext.valves.CompositeValve.invoke(CompositeValve.java:62)	at org.wso2.carbon.tomcat.ext.valves.CarbonStuckThreadDetectionValve.invoke(CarbonStuckThreadDetectionValve.java:159)	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)	at org.wso2.carbon.tomcat.ext.valves.CarbonContextCreatorValve.invoke(CarbonContextCreatorValve.java:57)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1074)	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1739)	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1698)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)	at java.lang.Thread.run(Thread.java:745)