There’s no reason for a main method to throw anything. After all, what’s going to catch it?
Instead, the method should itself gracefully handle any exceptions that may bubble up to it, attach as much contextual information as possible, and
perform whatever logging or user communication is necessary, and exit with a non-zero (i.e. non-success) exit code if necessary.
Noncompliant code example
public static void main(String args[]) throws Exception { // Noncompliant
doSomething();
}
Compliant solution
public static void main(String args[]) {
try {
doSomething();
} catch (Throwable t) {
log.error(t);
System.exit(1); // Default exit code, 0, indicates success. Non-zero value means failure.
}
}
