Unable to upgrade Fabric containers after adding containers to the ensemble

Issue

• java.lang.NullPointerException occurs when trying to upgrade Fabric containers which are part of an ensemble
• The following error might be seen in the log

2013-03-20 08:07:33,240 | INFO  | l Console Thread | Console                          | ?                                   ? | 15 - org.apache.karaf.shell.console - 2.3.0.fuse-71-047 | Exception caught while executing command
java.lang.RuntimeException: java.lang.NullPointerException
    at org.fusesource.fabric.internal.ContainerImpl.setVersion(ContainerImpl.java:194)[56:org.fusesource.fabric.fabric-core:7.1.0.fuse-047]
    at org.fusesource.fabric.commands.ContainerUpgrade.doExecute(ContainerUpgrade.java:89)[252:org.fusesource.fabric.fabric-commands:7.1.0.fuse-047]
    at org.apache.karaf.shell.console.OsgiCommandSupport.execute(OsgiCommandSupport.java:38)[15:org.apache.karaf.shell.console:2.3.0.fuse-71-047]
    at org.apache.felix.gogo.commands.basic.AbstractCommand.execute(AbstractCommand.java:35)[15:org.apache.karaf.shell.console:2.3.0.fuse-71-047]
    at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:78)[15:org.apache.karaf.shell.console:2.3.0.fuse-71-047]
    at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:474)[15:org.apache.karaf.shell.console:2.3.0.fuse-71-047]
    at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:400)[15:org.apache.karaf.shell.console:2.3.0.fuse-71-047]
    at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108)[15:org.apache.karaf.shell.console:2.3.0.fuse-71-047]
    at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:183)[15:org.apache.karaf.shell.console:2.3.0.fuse-71-047]
    at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:120)[15:org.apache.karaf.shell.console:2.3.0.fuse-71-047]
    at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:89)[15:org.apache.karaf.shell.console:2.3.0.fuse-71-047]
    at org.apache.karaf.shell.console.jline.Console.run(Console.java:171)[15:org.apache.karaf.shell.console:2.3.0.fuse-71-047]
    at org.apache.karaf.shell.console.jline.DelayedStarted.run(DelayedStarted.java:61)[15:org.apache.karaf.shell.console:2.3.0.fuse-71-047]
Caused by: java.lang.NullPointerException
    at org.fusesource.fabric.internal.ProfileImpl.configurationEquals(ProfileImpl.java:467)[56:org.fusesource.fabric.fabric-core:7.1.0.fuse-047]
    at org.fusesource.fabric.internal.ContainerImpl.requiresUpgrade(ContainerImpl.java:635)[56:org.fusesource.fabric.fabric-core:7.1.0.fuse-047]
    at org.fusesource.fabric.internal.ContainerImpl.setVersion(ContainerImpl.java:185)[56:org.fusesource.fabric.fabric-core:7.1.0.fuse-047]
    ... 12 more

• This occurs in the following scenario:

• Fabric is created on sever one

• A new profile version is created: 2.0
• Server two is joined to the fabric
• A child container is created on server two
• The server two container and server two child containers are added to the ensemble
• All containers are attempted to be upgraded to the version 2.0 profiles
• The null pointer occurs