Oracle has finalized its $8.5 billion deal to buy BEA Systems  following the European Commission's approval, it announced Tuesday.

"The Commission concluded that the transaction would not significantly impede effective competition in the European Economic Area (EEA) or any substantial part of it," a statement on the organization's Web site reads in part.

"The Commission examined the potential effects of the proposed merger on the overall middleware software sector and its various sub-divisions ... In each instance, the Commission found that the horizontal overlap between the parties' activities would not give rise to competition concerns, in particular since Oracle and BEA were not seen to compete head-to-head."

[ For more news on Oracle's path to acquiring BEA, read InfoWorld's special report: Merger mania. ]

the In addition, the combined company will face a number of viable competitors in the middleware market, such as IBM, Sun, Microsoft, and SAP, meaning "customers would therefore find sufficient alternative suppliers," the Commission added.

Tuesday's news closed the book on a long and tumultuous bid process marked by shareholder angst, assorted counter-offers and public jousting by company officials.