The required mechanism 'FORM' is not available in mechanisms [BEARER_TOKEN] from the HttpAuthenticationFactory in JBoss EAP 7.4

Solution Unverified - Updated -

Issue

Client is unable to authenticate with bearer token , the server side is logging:

Caused by: java.lang.RuntimeException: java.lang.IllegalStateException: The required mechanism 'FORM' is not available in mechanisms [BEARER_TOKEN] from the HttpAuthenticationFactory.
    at io.undertow.servlet@2.2.5.Final//io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:257)
    at org.wildfly.extension.undertow@23.0.2.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:96)
    at org.wildfly.extension.undertow@23.0.2.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:78)
    ... 8 more
Caused by: java.lang.IllegalStateException: The required mechanism 'FORM' is not available in mechanisms [BEARER_TOKEN] from the HttpAuthenticationFactory.
    at org.wildfly.security.elytron-web.undertow-server-servlet@1.9.0.Final//org.wildfly.elytron.web.undertow.server.servlet.AuthenticationManager.initialSecurityHandler(AuthenticationManager.java:156)
    at org.wildfly.security.elytron-web.undertow-server-servlet@1.9.0.Final//org.wildfly.elytron.web.undertow.server.servlet.AuthenticationManager.lambda$configure$2(AuthenticationManager.java:101)
    at io.undertow.servlet@2.2.5.Final//io.undertow.servlet.core.DeploymentManagerImpl.setupSecurityHandlers(DeploymentManagerImpl.java:445)
    at io.undertow.servlet@2.2.5.Final//io.undertow.servlet.core.DeploymentManagerImpl.access$600(DeploymentManagerImpl.java:122)
    at io.undertow.servlet@2.2.5.Final//io.undertow.servlet.core.DeploymentManagerImpl$1.call(DeploymentManagerImpl.java:226)
    at io.undertow.servlet@2.2.5.Final//io.undertow.servlet.core.DeploymentManagerImpl$1.call(DeploymentManagerImpl.java:187)
    at io.undertow.servlet@2.2.5.Final//io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:42)
    at io.undertow.servlet@2.2.5.Final//io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
    at org.wildfly.extension.undertow@23.0.2.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
    at org.wildfly.extension.undertow@23.0.2.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
    at org.wildfly.extension.undertow@23.0.2.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
    at org.wildfly.extension.undertow@23.0.2.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
    at org.wildfly.extension.undertow@23.0.2.Final//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
    at io.undertow.servlet@2.2.5.Final//io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:255)
    ... 10 more

Environment

  • Red Hat JBoss Enterprise Application Platform (EAP) 7.4
  • Bearer Token / JWT

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