Final fields can no longer be set
Final fields can no longer be set

Added validation that checks if field to be set has FINAL modifier. If so, exception is thrown.
ChartBoost/args4j,chambas/args4j,kohsuke/args4j,NickVolynkin/args4j,sannies/args4j,chambas/args4j,ollie314/args4j,kohsuke/args4j,sannies/args4j,kohsuke/args4j,chambas/args4j,ollie314/args4j,sannies/args4j,NickVolynkin/args4j,ollie314/args4j,ChartBoost/args4j,NickVolynkin/args4j,ChartBoost/args4j