[TRINIDAD] Should ClassLoaderUtils.getServices() provide duplicates

[Scott O'Bryan]

I'm in the process of fixing TRINIDAD-667.  Essentially what is 
happening is, if a particular service appears more then once in the 
webapp (either through multiple references in the classpath or because 
it exists in multiple files), that service is returned twice by the 
ClassLoaderUtils.getServices() method.  It is expected that a series of 
class names are returned from this method and for any given classname, 
the default resource loader will always load the same resource.  In 
retrospect this method probably should have returned a set, but instead 
it returns a list.

Here is my question, should I change ClassLoaderUtils.getServices() to 
eliminate any duplicates it might find such that anyone using the API 
will only have each service listed once or should I leave the 
functionality as it currently exists and put the duplicate checking 
inside of the GlobalConfiguratorImpl.

IMO, I should change ClassLoaderUtils.getServices() to return a list 
without duplicates, but it is in the API package so I wanted to see what 
people think.

Scott