Github user neykov commented on a diff in the pull request:

    https://github.com/apache/brooklyn-server/pull/181#discussion_r65893833
  
    --- Diff: 
core/src/main/java/org/apache/brooklyn/core/location/access/BrooklynAccessUtils.java
 ---
    @@ -59,46 +60,52 @@
     
         public static HostAndPort getBrooklynAccessibleAddress(Entity entity, 
int port) {
             String host;
    -        
    +
    +        EntityInternal entityInternal = (EntityInternal) entity;
    +
             // look up port forwarding
             PortForwardManager pfw = entity.getConfig(PORT_FORWARDING_MANAGER);
    -        if (pfw!=null) {
    -            Collection<Location> ll = entity.getLocations();
    -            
    -            synchronized (BrooklynAccessUtils.class) {
    -                // TODO finer-grained synchronization
    -                
    -                for (MachineLocation machine : Iterables.filter(ll, 
MachineLocation.class)) {
    -                    HostAndPort hp = pfw.lookup(machine, port);
    +        if (pfw == null) {
    +            log.debug("No PortForwardManager, using default");
    +            pfw = (PortForwardManager) 
entityInternal.getManagementContext().getLocationRegistry().getLocationManaged("portForwardManager(scope=global)");
    +        }
    +
    +        Collection<Location> ll = entity.getLocations();
    +
    +        synchronized (BrooklynAccessUtils.class) {
    --- End diff --
    
    Looking at the sources shouldn't be ever null, ignore.


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