<div dir="ltr"><div><div><div>Hello,<br><br></div>I&#39;m experiencing a strange error while trying to retrieve a token. Although initially the application may function properly and tokens issued normally, something happens when i use the Admin REST api that triggers the error. After that no tokens can be issued and an NPE appears in the log. Usually this happens after trying to drop some clients.<br><br></div><div>Btw, i&#39;m using keycloak-1.4.0.Final.<br></div><div><br></div>Here is the command i use to get the token:<br><br>curl -k -X POST <a href="https://identity.restcomm.com/auth/realms/restcomm/protocol/openid-connect/token">https://identity.restcomm.com/auth/realms/restcomm/protocol/openid-connect/token</a> -d &quot;grant_type=password&quot; -d &quot;client_id=restcomm-identity-rest&quot; -d &quot;username=otsakir&quot; -d &quot;password=....&quot;<br><br></div>And here is what i get in the logs:<br><div><div><br>09:12:36,414 ERROR [io.undertow.request] (default task-4) UT005023: Exception handling request to /auth/realms/restcomm/protocol/openid-connect/token: java.lang.RuntimeException: request path: /auth/realms/restcomm/protocol/openid-connect/token<br>    at org.keycloak.services.filters.KeycloakSessionServletFilter.doFilter(KeycloakSessionServletFilter.java:73)<br>    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)<br>    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)<br>    at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85)<br>    at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)<br>    at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)<br>    at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)<br>    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)<br>    at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)<br>    at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)<br>    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)<br>    at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)<br>    at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)<br>    at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58)<br>    at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:72)<br>    at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)<br>    at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76)<br>    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)<br>    at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)<br>    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)<br>    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)<br>    at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:282)<br>    at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:261)<br>    at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:80)<br>    at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:172)<br>    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:199)<br>    at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:774)<br>    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)<br>    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)<br>    at java.lang.Thread.run(Thread.java:745)<br>Caused by: org.jboss.resteasy.spi.UnhandledException: java.lang.NullPointerException<br>    at org.jboss.resteasy.core.ExceptionHandler.handleApplicationException(ExceptionHandler.java:76)<br>    at org.jboss.resteasy.core.ExceptionHandler.handleException(ExceptionHandler.java:212)<br>    at org.jboss.resteasy.core.SynchronousDispatcher.writeException(SynchronousDispatcher.java:149)<br>    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:372)<br>    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:179)<br>    at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:220)<br>    at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)<br>    at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)<br>    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)<br>    at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:86)<br>    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130)<br>    at org.keycloak.services.filters.KeycloakSessionServletFilter.doFilter(KeycloakSessionServletFilter.java:59)<br>    ... 29 more<br>Caused by: java.lang.NullPointerException<br>    at org.keycloak.protocol.oidc.TokenManager.addComposites(TokenManager.java:353)<br>    at org.keycloak.protocol.oidc.TokenManager.createClientAccessToken(TokenManager.java:193)<br>    at org.keycloak.protocol.oidc.TokenManager$AccessTokenResponseBuilder.generateAccessToken(TokenManager.java:412)<br>    at org.keycloak.protocol.oidc.endpoints.TokenEndpoint.buildResourceOwnerPasswordCredentialsGrant(TokenEndpoint.java:358)<br>    at org.keycloak.protocol.oidc.endpoints.TokenEndpoint.build(TokenEndpoint.java:113)<br>    at sun.reflect.GeneratedMethodAccessor204.invoke(Unknown Source)<br>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)<br>    at java.lang.reflect.Method.invoke(Method.java:606)<br>    at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:137)<br>    at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:296)<br>    at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:250)<br>    at org.jboss.resteasy.core.ResourceLocatorInvoker.invokeOnTargetObject(ResourceLocatorInvoker.java:140)<br>    at org.jboss.resteasy.core.ResourceLocatorInvoker.invoke(ResourceLocatorInvoker.java:109)<br>    at org.jboss.resteasy.core.ResourceLocatorInvoker.invokeOnTargetObject(ResourceLocatorInvoker.java:135)<br>    at org.jboss.resteasy.core.ResourceLocatorInvoker.invoke(ResourceLocatorInvoker.java:103)<br>    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)<br>    ... 37 more<br><br><br></div><div>Regards<br><br></div><div>Orestis<br></div></div></div>