public static void main(String[] args) throws Exception {
int res = ToolRunner.run(new Configuration(),
new DistributedPentomino(), args);
System.exit(res);
}
<BUG>public int run(String[] args) throws Exception {
if (args.length == 0) {
System.out.println("pentomino <output>");
ToolRunner.printGenericCommandUsage(System.out);</BUG>
return 2;

public static void main(String[] args) throws Exception {
int res = ToolRunner.run(new Configuration(),
new DistributedPentomino(), args);
System.exit(res);
