Hi Team, Recently i ran into an issue where i am using signedJWT tokens as client authentication mechnaism instead of client id/secret. My keyclok.json looks like this: "realm": "nginx", "realm-public-key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzb6ecdzvU+RoI0Qu6Psh1NFKLUoSuSfoAdW/nD5sr0M1FDpLOrsRIzIRScS9DJ28n1+Kdvrad9aS/UMsr+NXHRoSPeZuabAtfDCYx49+NhtR+LW97rB4lBNnXf148mkhikyZ0B08naQlhgkAqBXR5oxOo/FqWCObhZxBPsU9BcL4Qb5JO1we8k+7kIHTFyhHbZvEAk292eIG+GyrUDh+ZyE8T8Myde0GM1Korg9ZsdYxbb3U78bmxgvBmeye+Dq89EbyNDE3K/7giq7Gmh4Gu6fVcJG9tCjl1pS7CiDH1gTuITJxSJO3bPRf58SVoId8S26/5YMIq7pqwXe/pyvAewIDAQAB", "auth-server-url": "http://192.168.99.100:31048/auth", "ssl-required": "external", "resource": "product-portal", "enable-cors" : false, "credentials": { "jwt": { "client-key-password": "changeit", "client-keystore-file": "/keystore/keystore.jks", "client-keystore-password": "changeit", "client-key-alias": "product-portal", "token-timeout": 10, "client-keystore-type": "jks" } } } But when i am trying to deploy this app in my local tomcat, the app doesnt deploy and failed. I saw my catalina.log file which tells this: 12-Aug-2016 07:13:09.400 SEVERE [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Error deploying web applicatio n archive /usr/local/tomcat/webapps/product-portal.war java.lang.RuntimeException: org.codehaus.jackson.map.JsonMappingException: Can not deserialize instance of java.lang.String out of STA RT_OBJECT token at [Source: java.io.FileInputStream@7d33dbab; line: 9, column: 5] (through reference chain: org.keycloak.representations.adapters.conf ig.AdapterConfig["credentials"]) at org.keycloak.adapters.KeycloakDeploymentBuilder.loadAdapterConfig(KeycloakDeploymentBuilder.java:104) at org.keycloak.adapters.KeycloakDeploymentBuilder.build(KeycloakDeploymentBuilder.java:93) at org.keycloak.adapters.tomcat.AbstractKeycloakAuthenticatorValve.keycloakInit(AbstractKeycloakAuthenticatorValve.java:116) at org.keycloak.adapters.tomcat.AbstractKeycloakAuthenticatorValve.lifecycleEvent(AbstractKeycloakAuthenticatorValve.java:65) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:95) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90) at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:394) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:165) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:940) at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1816) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: org.codehaus.jackson.map.JsonMappingException: Can not deserialize instance of java.lang.String out of START_OBJECT token at [Source: java.io.FileInputStream@7d33dbab; line: 9, column: 5] (through reference chain: org.keycloak.representations.adapters.conf ig.AdapterConfig["credentials"]) at org.codehaus.jackson.map.JsonMappingException.from(JsonMappingException.java:163) at org.codehaus.jackson.map.deser.StdDeserializationContext.mappingException(StdDeserializationContext.java:219) at org.codehaus.jackson.map.deser.std.StringDeserializer.deserialize(StringDeserializer.java:44) at org.codehaus.jackson.map.deser.std.StringDeserializer.deserialize(StringDeserializer.java:13) at org.codehaus.jackson.map.deser.std.MapDeserializer._readAndBind(MapDeserializer.java:319) at org.codehaus.jackson.map.deser.std.MapDeserializer.deserialize(MapDeserializer.java:249) at org.codehaus.jackson.map.deser.std.MapDeserializer.deserialize(MapDeserializer.java:33) at org.codehaus.jackson.map.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:299) at org.codehaus.jackson.map.deser.SettableBeanProperty$MethodProperty.deserializeAndSet(SettableBeanProperty.java:414) at org.codehaus.jackson.map.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:697) ...... It shows problem in "credentials" property to deserilize. I am using Keycloak 2.0.0.Final and tomcat 8.0.36 version. for keycloak I am using tomcat adapter for my app. Please help. *- Best Regards* Abhishek Raghav _______________________________________________ keycloak-user mailing list keycloak-user(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/keycloak-user