java.sql.SQLException: Listener refused the connection with the following error:
ORA-12514, TNS:listener does not currently know of service requested in connect descriptor

  at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:489)
  at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:553)
  at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:254)
  at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
  at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:528)
  at org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils$$anonfun$createConnectionFactory$2.apply(JdbcUtils.scala:65)
  at org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils$$anonfun$createConnectionFactory$2.apply(JdbcUtils.scala:56)
  at org.apache.spark.sql.execution.datasources.jdbc.JDBCRDD$.resolveTable(JDBCRDD.scala:123)
  at org.apache.spark.sql.execution.datasources.jdbc.JDBCRelation.<init>(JDBCRelation.scala:117)
  at org.apache.spark.sql.execution.datasources.jdbc.JdbcRelationProvider.createRelation(JdbcRelationProvider.scala:53)
  at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:315)
  at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:149)
  at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:122)
  ... 48 elided
Caused by: oracle.net.ns.NetException: Listener refused the connection with the following error:
ORA-12514, TNS:listener does not currently know of service requested in connect descriptor

  at oracle.net.ns.NSProtocol.connect(NSProtocol.java:399)
  at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1140)
  at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:340)
  ... 60 more