Convenience methods needed for RandomStringGenerator

RandomStringGenerator is extremely verbose compared to the deprecated commons.lang3 RandomStringUtils.

Previously we could write:

RandomStringUtils.randomNumeric(10)

to generate a numeric string whereas this now has become:

new RandomStringGenerator.Builder().withinRange('0', '9').build().generate(10)

although in practice we would then also use static imports too.
The randomAlphabetic conversion is even more verbose:

new RandomStringGenerator.Builder().withinRange('A', 'z').filteredBy(new CharacterPredicate() {
                    @Override
                    public boolean test(int codePoint) {
                        return codePoint >= 'a' || codePoint <= 'Z';
                    }
                }).build().generate(10))

and at that point I lost enthusiam with trying to replicate randomAlphanumeric.

I don't think the average java developer would understand what a code point is in the first place so then trying to get our automation testers to use the new API to implement random alphanumeric character generation would be difficult.

I therefore suggest that commons-text should have a copy of RandomStringUtils which can even delegate to RandomStringGenerator or alternatively convenience static methods for the common use cases.