java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at org.fcrepo.server.Server.getBeanNamesForType(Server.java:1659)
at org.fcrepo.server.utilities.rebuild.Rebuild.getRebuilder(Rebuild.java:277)
at org.fcrepo.server.utilities.rebuild.Rebuild.main(Rebuild.java:459)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.fcrepo.server.utilities.rebuild.cli.CLILoader.main(CLILoader.java:77)

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