A DESCRIPTION OF THE PROBLEM :
Passing the invalid string "-" to Locale.LanguageRange.parse results in an ArrayIndexOutOfBoundsException being thrown instead of the expected IllegalArgumentException.

Method documentation says:
throws IllegalArgumentException - if a language range or a weight found in the given ranges is ill-formed


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
java.util.Locale.LanguageRange.parse("-");


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
IllegalArgumentException thrown
ACTUAL -
java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0


---------- BEGIN SOURCE ----------
public class Test {
public static void main(String[] args) {
java.util.Locale.LanguageRange.parse("-");
}
}
---------- END SOURCE ----------