}
private void contention1Transaction() throws SQLException {
Contention1 proc = this.getProcedure(Contention1.class);
assert (proc != null);
proc.run(conn);
}
private void contention2Transaction(int howManyUpdates, int howManyKeys, int sleepLength) throws SQLException {
Contention2 proc = this.getProcedure(Contention2.class);
assert (proc != null);