Hi,

I am trying to generate proxy ticket for my web service but CAS shows 500 
Internal Server Error out of no where only when trying to generate the 
Proxy Ticket. I am including the log in the post. Thanks 

2017-07-04 15:29:00,516 INFO 
[org.apereo.inspektr.audit.support.Slf4jLoggingAuditTrailManager] - <Audit 
trail record BEGIN
=============================================================
WHO: [email protected]
WHAT: Supplied credentials: [[email protected]]
ACTION: AUTHENTICATION_SUCCESS
APPLICATION: CAS
WHEN: Tue Jul 04 15:29:00 IST 2017
CLIENT IP ADDRESS: 127.0.0.1
SERVER IP ADDRESS: 127.0.0.1
=============================================================

>
2017-07-04 15:29:00,518 INFO 
[org.apereo.inspektr.audit.support.Slf4jLoggingAuditTrailManager] - <Audit 
trail record BEGIN
=============================================================
WHO: [email protected]
WHAT: TGT-**********************************************0LGazNcqC3-xoanon
ACTION: TICKET_GRANTING_TICKET_CREATED
APPLICATION: CAS
WHEN: Tue Jul 04 15:29:00 IST 2017
CLIENT IP ADDRESS: 127.0.0.1
SERVER IP ADDRESS: 127.0.0.1
=============================================================

>
2017-07-04 15:29:00,521 INFO 
[org.apereo.inspektr.audit.support.Slf4jLoggingAuditTrailManager] - <Audit 
trail record BEGIN
=============================================================
WHO: [email protected]
WHAT: ST-2-zfacDviclLI6Iql5GBN2-xoanon for http://localhost:8080/app
ACTION: SERVICE_TICKET_CREATED
APPLICATION: CAS
WHEN: Tue Jul 04 15:29:00 IST 2017
CLIENT IP ADDRESS: 127.0.0.1
SERVER IP ADDRESS: 127.0.0.1
=============================================================

>
2017-07-04 15:29:00,566 INFO 
[org.apereo.inspektr.audit.support.Slf4jLoggingAuditTrailManager] - <Audit 
trail record BEGIN
=============================================================
WHO: http://localhost:8080/app/mysql.jsp
WHAT: Supplied credentials: [http://localhost:8080/app/mysql.jsp]
ACTION: AUTHENTICATION_SUCCESS
APPLICATION: CAS
WHEN: Tue Jul 04 15:29:00 IST 2017
CLIENT IP ADDRESS: 127.0.0.1
SERVER IP ADDRESS: 127.0.0.1
=============================================================

>
2017-07-04 15:29:00,569 INFO 
[org.apereo.inspektr.audit.support.Slf4jLoggingAuditTrailManager] - <Audit 
trail record BEGIN
=============================================================
WHO: http://localhost:8080/app/mysql.jsp
WHAT: PGT-**********************************************1kJeSof7L4-xoanon
ACTION: PROXY_GRANTING_TICKET_CREATED
APPLICATION: CAS
WHEN: Tue Jul 04 15:29:00 IST 2017
CLIENT IP ADDRESS: 127.0.0.1
SERVER IP ADDRESS: 127.0.0.1
=============================================================

>
2017-07-04 15:29:00,570 INFO 
[org.apereo.inspektr.audit.support.Slf4jLoggingAuditTrailManager] - <Audit 
trail record BEGIN
=============================================================
WHO: [email protected]
WHAT: ST-2-zfacDviclLI6Iql5GBN2-xoanon
ACTION: SERVICE_TICKET_VALIDATED
APPLICATION: CAS
WHEN: Tue Jul 04 15:29:00 IST 2017
CLIENT IP ADDRESS: 127.0.0.1
SERVER IP ADDRESS: 127.0.0.1
=============================================================

>
2017-07-04 15:29:02,203 ERROR 
[org.springframework.boot.web.support.ErrorPageFilter] - <Forwarding to 
error page from request [/proxy] due to exception [null]>
java.lang.NullPointerException
at 
org.apereo.cas.web.ProxyController.getTargetService(ProxyController.java:102) 
~[cas-server-support-validation-5.0.7.jar:5.0.7]
at 
org.apereo.cas.web.ProxyController.handleRequestInternal(ProxyController.java:78)
 
~[cas-server-support-validation-5.0.7.jar:5.0.7]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
~[?:1.8.0_131]
at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
~[?:1.8.0_131]
at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 
~[?:1.8.0_131]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_131]
at 
org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:220)
 
~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:134)
 
~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116)
 
~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
 
~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
 
~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
 
~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
 
~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
 
~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
 
~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
 
~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) 
~[servlet-api.jar:?]
at 
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
 
~[spring-webmvc-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) 
~[servlet-api.jar:?]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.16]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
~[tomcat-websocket.jar:8.5.16]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.16]
at 
org.apereo.cas.web.support.CurrentCredentialsAndAuthenticationClearingFilter.doFilter(CurrentCredentialsAndAuthenticationClearingFilter.java:28)
 
~[cas-server-core-web-5.0.7.jar:5.0.7]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.16]
at 
org.apereo.cas.security.RequestParameterPolicyEnforcementFilter.doFilter(RequestParameterPolicyEnforcementFilter.java:261)
 
~[cas-server-security-filter-2.0.6.jar:2.0.6]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.16]
at 
org.apereo.cas.security.ResponseHeadersEnforcementFilter.doFilter(ResponseHeadersEnforcementFilter.java:238)
 
~[cas-server-security-filter-2.0.6.jar:2.0.6]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.16]
at 
org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:105)
 
~[spring-boot-actuator-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 
~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.16]
at 
org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
 
~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 
~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.16]
at 
org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:89)
 
~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 
~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.16]
at 
org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
 
~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 
~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.16]
at 
org.apereo.cas.logging.web.ThreadContextMDCServletFilter.doFilter(ThreadContextMDCServletFilter.java:90)
 
~[cas-server-core-logging-5.0.7.jar:5.0.7]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.16]
at 
org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:107)
 
~[spring-boot-actuator-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 
~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.16]
at 
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
 
~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 
~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.16]
at 
org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:117)
 
~[spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at 
org.springframework.boot.web.support.ErrorPageFilter.access$000(ErrorPageFilter.java:61)
 
~[spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at 
org.springframework.boot.web.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:92)
 
~[spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 
~[spring-web-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at 
org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:110)
 
~[spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.16]
at 
org.apereo.inspektr.common.web.ClientInfoThreadLocalFilter.doFilter(ClientInfoThreadLocalFilter.java:64)
 
~[inspektr-common-1.7.GA.jar:1.7.GA]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.16]
at 
org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71)
 
~[log4j-web-2.6.2.jar:2.6.2]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
 
~[catalina.jar:8.5.16]
at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) 
~[catalina.jar:8.5.16]
at 
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799) 
~[tomcat-coyote.jar:8.5.16]
at 
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
 
~[tomcat-coyote.jar:8.5.16]
at 
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
 
~[tomcat-coyote.jar:8.5.16]
at 
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)
 
~[tomcat-coyote.jar:8.5.16]
at 
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) 
~[tomcat-coyote.jar:8.5.16]
at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
[?:1.8.0_131]
at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
[?:1.8.0_131]
at 
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
 
~[tomcat-util.jar:8.5.16]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131]
Enter code here...


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