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

    https://github.com/apache/stratos/pull/277#discussion_r27088912
  
    --- Diff: 
components/org.apache.stratos.cloud.controller/src/main/java/org/apache/stratos/cloud/controller/messaging/topology/TopologyBuilder.java
 ---
    @@ -65,11 +67,31 @@ public static void handleServiceCreated(List<Cartridge> 
cartridgeList) {
                     if (!topology.serviceExists(cartridge.getType())) {
                         ServiceType serviceType = cartridge.isMultiTenant() ? 
ServiceType.MultiTenant : ServiceType.SingleTenant;
                         service = new Service(cartridge.getType(), 
serviceType);
    -                    List<PortMapping> portMappings = 
cartridge.getPortMappings();
    +                    List<PortMapping> portMappings = 
Arrays.asList(cartridge.getPortMappings());
                         Properties properties = new Properties();
    -                    for (Map.Entry<String, String> entry : 
cartridge.getProperties().entrySet()) {
    -                        properties.setProperty(entry.getKey(), 
entry.getValue());
    +
    +                    try {
    +                        Property[] propertyArray = null;
    +
    +                        if (cartridge.getProperties() != null) {
    +                            if (cartridge.getProperties().getProperties() 
!= null){
    +                                propertyArray = 
cartridge.getProperties().getProperties();
    +                            }
    +                        }
    +
    +                        List<Property> propertyList = new 
ArrayList<Property>();
    --- End diff --
    
    I would like to propose to move this logic to a method in Properties class 
so that it could be reused in other places as well. For the moment I'm merging 
this pull request, may be we can use a new pull request to do this improvement.
    Thanks


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