Caused by: java.lang.IllegalStateException: Can't overwrite cause with java.sql.SQLIntegrityConstraintViolationException: ORA-00001: unique constraint (SHULAN_TEST.SYS_C0026496) violated
at java.lang.Throwable.initCause(Throwable.java:457)
at org.apache.spark.sql.jdbc.stream.JdbcSink$$anonfun$appendRows$1.apply(JdbcSink.scala:92)
at org.apache.spark.sql.jdbc.stream.JdbcSink$$anonfun$appendRows$1.apply(JdbcSink.scala:91)
at org.apache.spark.rdd.RDD$$anonfun$foreachPartition$1$$anonfun$apply$29.apply(RDD.scala:929)
at org.apache.spark.rdd.RDD$$anonfun$foreachPartition$1$$anonfun$apply$29.apply(RDD.scala:929)
at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:2067)
at org.apache.spark.SparkContext$$anonfun$runJob