Additional log
[10/30/19 13:13:28:605 JST] 00000713 LTPAServerObj E SECJ0369E: Authentication failed when using LTPA. The exception is com.ibm.websphere.wim.exception.PasswordCheckFailedException: CWWIM4537E No principal is found from the 'admin' principal name..
[10/30/19 13:13:28:606 JST] 00000713 FormLoginExte E SECJ0118E: Authentication error during authentication for user admin
[10/30/19 13:13:28:607 JST] 00000713 FormLoginExte E SECJ0118E: Authentication error during authentication for user admin
[10/30/19 13:13:28:607 JST] 00000713 webapp E com.ibm.ws.webcontainer.webapp.WebApp logError SRVE0293E: [Servlet Error]-[java.lang.IllegalArgumentException: Location cannot be null in javax.servlet.http.HttpServletResponse.sendRedirect(location)]: java.lang.IllegalArgumentException: Location cannot be null in javax.servlet.http.HttpServletResponse.sendRedirect(location)
at com.ibm.ws.webcontainer.webapp.WebAppDispatcherContext.sendRedirectWithStatusCode(WebAppDispatcherContext.java:547)
at com.ibm.ws.webcontainer.webapp.WebAppDispatcherContext.sendRedirect(WebAppDispatcherContext.java:535)
at com.ibm.ws.webcontainer.srt.SRTServletResponse.sendRedirect(SRTServletResponse.java:1368)
at com.ibm.ws.security.web.FormLoginExtensionProcessor.formLogin(FormLoginExtensionProcessor.java:933)
at com.ibm.ws.security.web.FormLoginExtensionProcessor.formLogin(FormLoginExtensionProcessor.java:253)
at com.ibm.ws.security.web.FormLoginExtensionProcessor.handleRequest(FormLoginExtensionProcessor.java:231)
at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:4040)
at com.ibm.ws.webcontainer.webapp.WebAppImpl.handleRequest(WebAppImpl.java:2171)
at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:1028)
at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1817)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:294)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:465)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:532)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:318)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:289)
at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175)
at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1892)