java.lang.IllegalStateException: java.util.concurrent.ExecutionException: java.lang.NullPointerException

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java.lang.NullPointerException: null
at java.util.Hashtable.put(Hashtable.java:459)
at java.util.Properties.setProperty(Properties.java:166)
at org.apache.nifi.processors.kafka.GetKafka.createConsumers(GetKafka.java:238)
at org.apache.nifi.processors.kafka.GetKafka$1.call(GetKafka.java:355)
at org.apache.nifi.processors.kafka.GetKafka$1.call(GetKafka.java:352)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

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