Regex in java for finding duplicate consecutive words

Question

I saw this as an answer for finding repeated words in a string. But when I use it, it thinks This and is are the same and deletes the is

Answer 1

if unicodes are important than you should use this:

 Pattern.compile("\\b(\\w+)(\\b\\W+\\b\\1\\b)*",
        Pattern.MULTILINE + Pattern.CASE_INSENSITIVE + Pattern.UNICODE_CHARACTER_CLASS)