The state of Oregon filed a lawsuit Friday against Oracle Corp. and several of its executives over the technology company's role in creating the troubled website for the state's online health insurance exchange. The public website was never launched and became a political problem to Democratic Gov. John Kitzhaber, who is running for re-election. Instead of signing up for health insurance under the Affordable Care Act in one sitting, Oregonians had to use a hybrid paper-online process that was costly and slow, and the state had to hire more than 400 workers to help them.