readme-libs.txt

Facebook4J is a Facebook Graph API binding library for the Java language licensed under Apache License 2.0.

Facebook4J includes software from JSON.org to parse JSON response from the Facebook Graph API. You can see the license term at http://www.JSON.org/license.html
Facebook4J includes software from Twitter4J to handle HTTP request/response and greatly internal logic. You can see the license term at http://twitter4j.org/en/index.html#license

readme-libs.txt - this file
facebook4j-core.jar - Graph API support