shanthoosh opened a new pull request #1007: SAMZA-2173: Fix NullPointerException in SetConfig MessageFormat when configurations are deleted. URL: https://github.com/apache/samza/pull/1007 Currently the configurations in the coordinator stream are deleted by sending a Delete message with message-map set as null and type set as `SetConfig.TYPE`. To read configurations from the coordinator stream, there should be a check at the caller API to find if configuration message has been deleted or not. Otherwise it results in a NPE. This patch encapsulates the isDelete check into the SetConfig class and returns null if the configuration key has been deleted.
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