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私はmysqlデータベースでカフカを接続するためのソースとして合流のカフカ-接続-JDBCを使用して、私は下にこのエラーを満たし:私にとって合流カフカコネクト・-JDBCのjava.lang.NullPointerException
java.lang.NullPointerException
at io.confluent.connect.jdbc.source.TimestampIncrementingTableQuerier.extractOffset(TimestampIncrementingTableQuerier.java:218)
at io.confluent.connect.jdbc.source.TimestampIncrementingTableQuerier.extractRecord(TimestampIncrementingTableQuerier.java:185)
at io.confluent.connect.jdbc.source.JdbcSourceTask.poll(JdbcSourceTask.java:195)
at org.apache.kafka.connect.runtime.WorkerSourceTask.execute(WorkerSourceTask.java:155)
at org.apache.kafka.connect.runtime.WorkerTask.doRun(WorkerTask.java:140)
at org.apache.kafka.connect.runtime.WorkerTask.run(WorkerTask.java:175)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)