Cluster creation was running successfully with the version of the trunk prior 
to AMBARI-111 commit (AFAICT). Now I am getting an NPE - 
java.lang.NullPointerException
        at 
org.apache.ambari.components.impl.XmlComponentDefinition.getInputStream(XmlComponentDefinition.java:299)
        at 
org.apache.ambari.components.impl.XmlComponentDefinition.<init>(XmlComponentDefinition.java:315)
        at 
org.apache.ambari.controller.Cluster.addClusterDefinition(Cluster.java:89)
        at org.apache.ambari.controller.Clusters.addCluster(Clusters.java:360)
        at org.apache.ambari.controller.Clusters.<init>(Clusters.java:132)
        at org.apache.ambari.controller.Clusters.getInstance(Clusters.java:141)
        at 
org.apache.ambari.controller.rest.resources.ClustersResource.updateClusterDefinition(ClustersResource.java:166)


The command that I am using :
./bin/ambari client cluster create -name ddas1 -stack hadoop-security 
-goalstate ACTIVE -nodes Devaraj-Dass-MacBook-Pro.local -role 
namenode=Devaraj-Dass-MacBook-Pro.local -role 
datanode=Devaraj-Dass-MacBook-Pro.local -services hdfs

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