[ https://issues.jboss.org/browse/WFLY-4725?page=com.atlassian.jira.plugin.... ] Radim Hatlapatka commented on WFLY-4725: ---------------------------------------- The schema jboss-web_7_2.xsd is not available in WildFly. And the deployment fails with [1] as it doesn't recognize the enable-websockets element. Note copying the schema to {{$JBOSS_HOME/docs/schema} from EAP 6.4, it is not sufficient. {noformat} 6:00:36,049 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-8) MSC000001: Failed to start service jboss.deployment.unit."websocket-demo.war".PARSE: org.jboss.msc.service.StartException in service jboss.deployment.unit."websocket-demo.war".PARSE: WFLYSRV0153: Failed to process phase PARSE of deployment "websocket-demo.war" at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:163) at org.jboss.msc.service.ServiceControllerImpl$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: org.jboss.as.server.deployment.DeploymentUnitProcessingException: WFLYUT0027: Failed to parse XML descriptor "/content/websocket-demo.war/WEB-INF/jboss-web.xml" at [5,5] at org.wildfly.extension.undertow.deployment.JBossWebParsingDeploymentProcessor.deploy(JBossWebParsingDeploymentProcessor.java:81) at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:156) ... 5 more Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[5,5] Message: Unexpected element '{http://www.jboss.com/xml/ns/javaee}enable-websockets' encountered at org.jboss.metadata.parser.util.MetaDataElementParser.unexpectedElement(MetaDataElementParser.java:115) at org.jboss.metadata.parser.jbossweb.JBossWebMetaDataParser.parse(JBossWebMetaDataParser.java:280) at org.wildfly.extension.undertow.deployment.JBossWebParsingDeploymentProcessor.deploy(JBossWebParsingDeploymentProcessor.java:73) ... 6 more 16:00:36,052 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("deploy") failed - address: ([("deployment" => "websocket-demo.war")]) - failure description: {"WFLYCTL0080: Failed services" => {"jboss.deployment.unit.\"websocket-demo.war\".PARSE" => "org.jboss.msc.service.StartException in service jboss.deployment.unit.\"websocket-demo.war\".PARSE: WFLYSRV0153: Failed to process phase PARSE of deployment \"websocket-demo.war\" Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: WFLYUT0027: Failed to parse XML descriptor \"/content/websocket-demo.war/WEB-INF/jboss-web.xml\" at [5,5] Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[5,5] Message: Unexpected element '{http://www.jboss.com/xml/ns/javaee}enable-websockets' encountered"}} {noformat} -- This message was sent by Atlassian JIRA (v6.3.15#6346)