Oracle's acquisition of Sun Microsystems may not be all plain sailing, after Sun shareholders filed three class action suits in an attempt to block the proposed $7.4bn (£5bn) deal.
Although Sun board members approved the deal at the end of April, some key shareholders appear to have joined forces to block the transaction.
A 10-Q filing with the Securities and Exchange Commission shows that the law suits claim that the price tag is "unfair and inadequate", and that Sun's executive team is guilty of "aiding and abetting a breach of fiduciary duty against the corporate defendants".
It has been reported that the shareholders could be among those who bought shares in Sun when they were above the $20 (£13) mark, and are unhappy with Oracle's buying price of around $9.50 (£6.23).
A successful deal will give Oracle valuable assets in the Java platform, MySQL open source database technology and Sun's flagship Solaris operating system, although some have speculated that Oracle may want to ditch or consolidate any of Sun's middleware technology that overlaps with Oracle's BEA line.
There are also question marks over the difference between the two companies' cultures. Tony Byrne, founder of analyst firm CMS Watch, argued in a blog post that the "easy-going Sun folks" may have a hard time gelling with the "hard-nosed Oracle culture".
He added that, if the deal goes through, Sun customers should brace themselves to deal with more aggressive Oracle salespeople in the future.
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