In Johnson v. State, 536 So. 2d 1009 (Fla. 1989), the Supreme Court of Florida stated: Johnson's suggestion that the rule is somehow ambiguous is utterly without merit. We also reject his contention that his claims fall within one of the two exceptions to the application of the time limit. The evidence upon which Johnson makes his argument was always in existence, and if it was unknown to Johnson or his attorney, it could have been ascertained by the exercise of due diligence. Likewise, there are no new fundamental constitutional rights now being asserted which have been given retroactive application. The credibility of the criminal justice system depends upon both fairness and finality. The time limitation of rule 3.850 accommodates both interests. It serves to reduce piecemeal litigation and the assertion of stale claims while at the same time preserves the right to unlimited access to the courts where there is newly discovered evidence or where there have been fundamental constitutional changes in the law with retroactive application. When Johnson filed his motion for postconviction relief, over nine years had elapsed from the date of his trial. The motion was filed more than fifteen months after January 1, 1987. His claims do not fall within the two exceptions prescribed by the rule. Hence, the trial court properly denied Johnson's motion as untimely filed. We affirm the order of denial and vacate the stay of execution. Id. at 1011.