Larry Ellison might be expressing his love for Sun Microsystems' Sparc, but there's no guarantee the architecture will actually finish up in his arms.

A group of Sun shareholders have gone to court in an attempt to block the Oracle chief executive's proposed $5.6bn acquisition of the company.

The lawsuits claim the amount offered for Sun is "unfair and inadequate." The tender price offered by Oracle was generally considered to be a bargain, and came as Sun has been shopping itself around the industry. Ironically, it was a group of Sun's shareholders - Southeastern Asset Management - that increased their holding in the company throughout the course of 2008 as part of a move to influence management and help "realize" Sun's value.

Sun and Oracle have yet to respond to the allegations.

You can read Sun's full filing here.

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