17:41:19,764 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC000001: Failed to start service jboss.deployment.unit."app.war".POST_MODULE: org.jboss.msc.service.StartException in service jboss.deployment.unit."app.war".POST_MODULE: WFLYSRV0153: Failed to process phase POST_MODULE of deployment "app.war"
    at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:163)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
    at org.keycloak.subsystem.extension.KeycloakAdapterConfigDeploymentProcessor.deploy(KeycloakAdapterConfigDeploymentProcessor.java:73)
    at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:156)
    ... 5 more

17:41:19,770 ERROR [org.jboss.as.controller.management-operation] (management-handler-thread - 1) WFLYCTL0013: Operation ("deploy") failed - address: ([("deployment" => "app.war")]) - failure description: {"WFLYCTL0080: Failed services" => {"jboss.deployment.unit.\"app.war\".POST_MODULE" => "org.jboss.msc.service.StartException in service jboss.deployment.unit.\"app.war\".POST_MODULE: WFLYSRV0153: Failed to process phase POST_MODULE of deployment \"app.war\"
    Caused by: java.lang.NullPointerException"}}
17:41:19,771 ERROR [org.jboss.as.server] (management-handler-thread - 1) WFLYSRV0021: Deploy of deployment "app.war" was rolled back with the following failure message:
{"WFLYCTL0080: Failed services" => {"jboss.deployment.unit.\"app.war\".POST_MODULE" => "org.jboss.msc.service.StartException in service jboss.deployment.unit.\"app.war\".POST_MODULE: WFLYSRV0153: Failed to process phase POST_MODULE of deployment \"app.war\"
    Caused by: java.lang.NullPointerException"}}