Huge HttpManagementService-threads cause OOME : unable to create new native thread

Issue

• Many HttpManagementService-threads with below signature cause Java java.lang.OutOfMemoryError unable to create new native thread exception in EAP6 domain host controller.

"HttpManagementService-threads - 193" prio=10 tid=0x00007f42f028e000 nid=0x64e3 waiting on condition [0x00007f431c22f000]
   java.lang.Thread.State: WAITING (parking)
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for  <0x00000000e0ead580> (a java.util.concurrent.locks.ReentrantLock$NonfairSync)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:834)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireInterruptibly(AbstractQueuedSynchronizer.java:894)
        at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireInterruptibly(AbstractQueuedSynchronizer.java:1221)
        at java.util.concurrent.locks.ReentrantLock.lockInterruptibly(ReentrantLock.java:340)
        at org.jboss.as.controller.ModelControllerImpl.acquireLock(ModelControllerImpl.java:414)
        at org.jboss.as.controller.OperationContextImpl.takeWriteLock(OperationContextImpl.java:358)
        at org.jboss.as.controller.OperationContextImpl.acquireControllerLock(OperationContextImpl.java:635)
        at org.jboss.as.domain.controller.operations.coordination.OperationCoordinatorStepHandler.executeTwoPhaseOperation(OperationCoordinatorStepHandler.java:202)
        at org.jboss.as.domain.controller.operations.coordination.OperationCoordinatorStepHandler.execute(OperationCoordinatorStepHandler.java:118)
        at org.jboss.as.domain.controller.operations.coordination.PrepareStepHandler.execute(PrepareStepHandler.java:85)
        at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:397)
        at org.jboss.as.controller.AbstractOperationContext.doCompleteStep(AbstractOperationContext.java:284)
        at org.jboss.as.controller.AbstractOperationContext.completeStep(AbstractOperationContext.java:211)
        at org.jboss.as.controller.ModelControllerImpl.internalExecute(ModelControllerImpl.java:126)
        at org.jboss.as.controller.ModelControllerImpl.execute(ModelControllerImpl.java:111)
        at org.jboss.as.controller.ModelControllerImpl$1.execute(ModelControllerImpl.java:316)
        at org.jboss.as.controller.ModelControllerImpl$1.execute(ModelControllerImpl.java:306)
        at org.jboss.as.domain.http.server.DomainApiHandler.processRequest(DomainApiHandler.java:325)
        at org.jboss.as.domain.http.server.DomainApiHandler.doHandle(DomainApiHandler.java:230)
        at org.jboss.as.domain.http.server.DomainApiHandler.handle(DomainApiHandler.java:237)
        at org.jboss.as.domain.http.server.security.SubjectAssociationHandler.handle(SubjectAssociationHandler.java:51)
        at org.jboss.com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:78)
        at org.jboss.sun.net.httpserver.AuthFilter.doFilter(AuthFilter.java:69)
        at org.jboss.com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:81)
        at org.jboss.sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(ServerImpl.java:710)
        at org.jboss.com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:78)
        at org.jboss.as.domain.http.server.RealmReadinessFilter.doFilter(RealmReadinessFilter.java:47)
        at org.jboss.as.domain.http.server.DmrFailureReadinessFilter.doFilter(DmrFailureReadinessFilter.java:45)
        at org.jboss.com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:81)
        at org.jboss.sun.net.httpserver.ServerImpl$Exchange.run(ServerImpl.java:682)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
        at org.jboss.threads.JBossThread.run(JBossThread.java:122)