Delay management-console startup until the server is started

Management console stops working after I deploy a .war file. One way to fix - manually edit the standalone.xml file and remove the <deployments> section.
Console displays "No manageable subsystems exist." and all fails. There is an error message:

Unknown error

Unexpected HTTP response: 500

Request
{
"operation" => "read-children-resources",
"address" => [("subsystem" => "datasources")],
"child-type" => "xa-data-source"
}

Response

Internal Server Error
{
"outcome" => "failed",
"failure-description" => "Operation handler failed: java.util.NoSuchElementException: \"subsystem\" => \"datasources\"",
"rolled-back" => true
}

log has:

13:52:03,200 ERROR [org.jboss.as.controller] (HttpManagementService-threads - 1) Operation ("read-children-resources") failed - address: ([("subsystem" => "datasources")]): java.util.NoSuchElementException: "subsystem" => "datasources"
at org.jboss.as.controller.registry.BasicResource.requireChild(BasicResource.java:95) [jboss-as-controller-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.controller.ModelControllerImpl$RootResource.requireChild(ModelControllerImpl.java:423) [jboss-as-controller-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.controller.OperationContextImpl.readResource(OperationContextImpl.java:764) [jboss-as-controller-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.controller.operations.global.GlobalOperationHandlers$ReadChildrenResourcesOperationHandler.execute(GlobalOperationHandlers.java:487) [jboss-as-controller-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.controller.OperationContextImpl.executeStep(OperationContextImpl.java:353) [jboss-as-controller-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.controller.OperationContextImpl.doCompleteStep(OperationContextImpl.java:298) [jboss-as-controller-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.controller.OperationContextImpl.completeStep(OperationContextImpl.java:223) [jboss-as-controller-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.controller.ModelControllerImpl$DefaultPrepareStepHandler.execute(ModelControllerImpl.java:350) [jboss-as-controller-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.controller.OperationContextImpl.executeStep(OperationContextImpl.java:353) [jboss-as-controller-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.controller.OperationContextImpl.doCompleteStep(OperationContextImpl.java:298) [jboss-as-controller-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.controller.OperationContextImpl.completeStep(OperationContextImpl.java:223) [jboss-as-controller-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.controller.ModelControllerImpl.execute(ModelControllerImpl.java:119) [jboss-as-controller-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.controller.ModelControllerImpl$1.execute(ModelControllerImpl.java:209) [jboss-as-controller-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.controller.ModelControllerImpl$1.execute(ModelControllerImpl.java:199) [jboss-as-controller-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.domain.http.server.DomainApiHandler.processRequest(DomainApiHandler.java:188)
at org.jboss.as.domain.http.server.DomainApiHandler.handle(DomainApiHandler.java:123)
at org.jboss.com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:78)
at org.jboss.sun.net.httpserver.AuthFilter.doFilter(AuthFilter.java:80)
at org.jboss.com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:81)
at org.jboss.sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(ServerImpl.java:689)
at org.jboss.com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:78)
at org.jboss.sun.net.httpserver.ServerImpl$Exchange.run(ServerImpl.java:661)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_23]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_23]
at java.lang.Thread.run(Thread.java:662) [:1.6.0_23]
at org.jboss.threads.JBossThread.run(JBossThread.java:122) [jboss-threads-2.0.0.GA.jar:2.0.0.GA]