Url regex in Groovy with metaclass for String clazz return a list of all urls that string contains

stringMetaClassRegexUrlMatcher.groovy

private addExtractUrls(){
  	String.metaClass.extractUrls = { ->
		def urlsList = []
		def matchesUrl = delegate =~ regExForUrls()
		
		matchesUrl.each{ matches ->
           		urlsList << matches[0]
        	}

	return urlsList
	}
}

private regExForUrls(){
		 /([a-zA-Z0-9]+[.](aero|asia|biz|cat|com|coop|edu|es|gov|info|int|jobs|mil|mobi|museum|name|net|org|pro|tel|travel|xxx)[-a-zA-Z0-9+&@#\/%?=~_|:.,;]*)|((https?:\/\/)?([-a-zA-Z0-9_]+[.])*[-a-zA-Z0-9_]+[.][-a-zA-Z0-9_]+[.][a-zA-Z]+[a-zA-Z]+[\-a-zA-Z0-9+&@#\/%?=~_|:\.\,;]*)|(\b(https?:\/\/)([-a-zA-Z0-9_]+[.])*[-a-zA-Z0-9_]+[.][a-zA-Z]+[a-zA-Z]+[\-a-zA-Z0-9+&@#\/%?=~_|:\.\,;]*)/
}