org.apache.kafka.connect.errors.ConnectException: Connector threw an exception while starting

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Connector threw an exception while starting
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Connector threw an exception while starting
org.apache.kafka.connect.errors.ConnectException: Connector threw an exception while starting
at org.postgresql.core.v3.ConnectionFactoryImpl.doAuthentication(ConnectionFactoryImpl.java:427)
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:203)
at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:65)
at org.postgresql.jdbc2.AbstractJdbc2Connection.(AbstractJdbc2Connection.java:149)
at org.postgresql.jdbc3.AbstractJdbc3Connection.(AbstractJdbc3Connection.java:35)
at org.postgresql.jdbc3g.AbstractJdbc3gConnection.(AbstractJdbc3gConnection.java:22)
at org.postgresql.jdbc4.AbstractJdbc4Connection.(AbstractJdbc4Connection.java:47)
at org.postgresql.jdbc4.Jdbc4Connection.(Jdbc4Connection.java:30)
at org.postgresql.Driver.makeConnection(Driver.java:414)
at org.postgresql.Driver.connect(Driver.java:282)
at java.sql.DriverManager.getConnection(DriverManager.java:571)
at java.sql.DriverManager.getConnection(DriverManager.java:233)
at io.confluent.connect.jdbc.JdbcSourceConnector.start(JdbcSourceConnector.java:74)
at org.apache.kafka.connect.runtime.Worker.addConnector(Worker.java:186)
at org.apache.kafka.connect.runtime.distributed.DistributedHerder.startConnector(DistributedHerder.java:670)
at org.apache.kafka.connect.runtime.distributed.DistributedHerder.startWork(DistributedHerder.java:642)
at org.apache.kafka.connect.runtime.distributed.DistributedHerder.handleRebalanceCompleted(DistributedHerder.java:600)
at org.apache.kafka.connect.runtime.distributed.DistributedHerder.tick(DistributedHerder.java:184)
at org.apache.kafka.connect.runtime.distributed.DistributedHerder.run(DistributedHerder.java:159)
at java.lang.Thread.run(Thread.java:745)

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