DBpedia Spotlight should meet your requirement since it uses Wikipedia concepts as the knowledge base for identifying concepts from the input text. DBpedia is a database which comprises of structured data extracted from Wikipedia pages. You can use the Spotlight service as an API in your Java code. Try the demo in this link http://demo.dbpedia-spotlight.org/
Also, there is a github page for this service https://github.com/dbpedia-spotlight/dbpedia-spotlight