Today Oracle announced that the U.S. Department of Justice has approved its multi-billion dollar acquisition of Sun Microsystems in April of this year.

Clearance of the deal had been postponed primarily due to concerns about the licensing of Sun’s Java programming language. Regulatory agencies understandably wanted to examine the inner workings of the deal before placing Oracle in command of the most widely used Web-based networking software in the market.

Further antitrust issues could potentially stem from Oracle’s newly found possession of MySQL, a popular open source database acquired by Sun in January of 2008. Given that Oracle touts a commanding market share with its own proprietary database solutions, it is conceivable that the company may not devote adequate resources to its open source counterpart.

The deal is still not final, however. Closing remains subject to approval from the Securities and Exchange Commission, as well as the European Commission. Most believe it is only a matter of time before the deal is officially in the books.