}
private static void dbSchemaDrop(ProcessEngineConfigurationImpl processEngineConfiguration) {
if (processEngineConfiguration.getDatabaseType().equals("postgres")) {
CleanPostgres cleanPostgres = new CleanPostgres();
cleanPostgres.execute();
} else {
CommandExecutor commandExecutor = processEngineConfiguration.getCommandExecutorTxRequired();
commandExecutor.execute(new Command<Object> (){