public static void checkStringNotNullOrEmpty(String parameterName,
            String value) {
        if (TextUtils.isEmpty(value)) {
            throw Exceptions.IllegalArgument("Current input string %s is %s.",
                    parameterName, value == null ? "null" : "empty");
        }
    }
public static void checkStringNotNullOrEmpty ( String parameterName , String value ) { if ( TextUtils . isEmpty ( value ) ) { throw Exceptions . IllegalArgument ( "Current input string %s is %s." , parameterName , value == null ? "null" : "empty" ) ; } }
Check that the parameter string is not null or empty

@param value
String value to be checked.
@param parameterName
The name of the user-supplied parameter that we are validating
so that the user can easily find the error in their code.
@throws IllegalArgumentException
If the key is null or empty.