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

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This exception has no message.
java.lang.NullPointerException:
at voldemort.store.configuration.ConfigurationStorageEngine.put(ConfigurationStorageEngine.java:146)
at voldemort.store.configuration.ConfigurationStorageEngine.put(ConfigurationStorageEngine.java:50)
at voldemort.store.metadata.MetadataStore.addStoreDefinition(MetadataStore.java:1029)
at voldemort.server.protocol.admin.AdminServiceRequestHandler.handleAddStore(AdminServiceRequestHandler.java:1689)
at voldemort.server.protocol.admin.AdminServiceRequestHandler.handleRequest(AdminServiceRequestHandler.java:258)
at voldemort.server.niosocket.AsyncRequestHandler.read(AsyncRequestHandler.java:192)
at voldemort.common.nio.SelectorManagerWorker.run(SelectorManagerWorker.java:105)
at voldemort.common.nio.AbstractSelectorManager.run(AbstractSelectorManager.java:243)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

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