docs: @Override
      public void deleteServerLease(String recoveryIdentity) throws Exception {
          if (tc.isEntryEnabled())
              Tr.entry(tc, "deleteServerLease", new java.lang.Object[] { recoveryIdentity, this });
  
          Connection conn = null;
          boolean sqlSuccess = false;
          SQLException currentSqlEx = null;
  
          Statement deleteStmt = null;
  
          try
          {
              // Have we acquired the reference to the DataSource yet?
              if (_theDS == null)
              {
                  _theDS = getDataSourceFromProperties();
                  // We've looked up the DS, so now we can get a JDBC connection
                  if (_theDS != null)
                  {
                      conn = getConnection(_theDS);
                  }
              }
              else
              {
                  // Try and get a new connection
                  conn = _theDS.getConnection();
              }
  
              // If we were unable to get a connection, throw an exception
              if (conn == null)
              {
                  if (tc.isEntryEnabled())
                      Tr.exit(tc, "deleteServerLease", "Null connection InternalLogException");
                  throw new InternalLogException("Failed to get JDBC Connection", null);
              }
  
              if (tc.isDebugEnabled())
                  Tr.debug(tc, "Set autocommit FALSE on the connection");
              conn.setAutoCommit(false);
  
              // We can go ahead and write to the Database
              deleteStmt = conn.createStatement();
  
              String deleteString = "DELETE FROM " + _leaseTableName +
                                    " WHERE SERVER_IDENTITY='" + recoveryIdentity + "'";
              if (tc.isDebugEnabled())
                  Tr.debug(tc, "delete server lease for " + recoveryIdentity + "using string " + deleteString);
  
              int ret = deleteStmt.executeUpdate(deleteString);
  
              if (tc.isDebugEnabled())
                  Tr.debug(tc, "Have deleted row with return: " + ret + ", commit the change");
  
              conn.commit();
              Tr.audit(tc, "WTRN0108I: Deleted Lease for server with recovery identity " + recoveryIdentity);
          }
          // Catch and report an SQLException. In the finally block we'll determine whether the condition is transient or not.
          catch (SQLException sqlex)
          {
              if (tc.isDebugEnabled())
                  Tr.debug(tc, "Lease delete failed with exception: " + sqlex);
          } finally
          {
  
              if (deleteStmt != null && !deleteStmt.isClosed())
                  deleteStmt.close();
              if (conn != null)
                  conn.close();
          }
  
          if (tc.isEntryEnabled())
              Tr.exit(tc, "deleteServerLease");
      }