[GOBBLIN-1581] Iterate over Sql ResultSet in Only the Forward Directi…

…on (#3435)

* after sql-connector was bumped, exception results from ResultSet.first() being called because it iterates in backward direction of set

Co-authored-by: Urmi Mustafi <umustafi@umustafi-mn1.linkedin.biz>

gobblin-modules/gobblin-sql/src/main/java/org/apache/gobblin/writer/commands/MySqlWriterCommands.java

@@ -82,7 +82,7 @@ public void createTableStructure(String databaseName, String fromStructure, Stri
   public boolean isEmpty(String database, String table) throws SQLException {
     String sql = String.format(SELECT_SQL_FORMAT, database, table);
     try (PreparedStatement pstmt = this.conn.prepareStatement(sql); ResultSet resultSet = pstmt.executeQuery();) {
-      if (!resultSet.first()) {
+      if (!resultSet.next()) {
         throw new RuntimeException("Should have received at least one row from SQL " + pstmt);
       }
       return 0 == resultSet.getInt(1);