Picocli should disallow split regex for single-value type options (was: Argument groups: false error message when using split regex) #745
Description
I'm running the minimum working example below:
package test;
import picocli.CommandLine;
import picocli.CommandLine.ArgGroup;
import picocli.CommandLine.Command;
import picocli.CommandLine.Option;
public class ArgGroupsTest {
public static void main(String[] args) {
CommandLine cmd = new CommandLine(new TestCommand());
cmd.execute( "-option=1,2");
}
@Command(name = "ArgGroupsTest")
static class TestCommand implements Runnable {
@ArgGroup( exclusive = false)
DataSource datasource;
static class DataSource {
@Option(names = "-option", split = "," )
int value;
}
@Override
public void run() {
// nothing to do here
}
}
}
IMHO, the program should exit gracefully, however, an error message is thrown:
Invalid value for option '-option': '1,2' is not an int
Usage: ArgGroupsTest [[-option=<value>[,<value>...]]]
-option=<value>[,<value>...]
Is this the intended behaviour?