[GROOVY-6052] ++ or -- doesn't respect final modifier

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.8, 2.0.6, 2.1.1
• Fix Version/s: 2.5.0-alpha-1
• Component/s: Compiler
• Assignee: Unassigned
• Reporter: Dinko Srkoc
• Created: 14/Mar/13 07:16
• Updated: 02/May/17 02:03
• Resolved: 01/Mar/15 07:30

Description

Groovy respects final modifier for fields and method parameters, but using ++ or -- is still allowed:

class A {
    final foo = 42
    def incrementField() { ++foo }
    def incrementParam(final a) { ++a }
}

def a = new A()
assert a.incrementField() == 43
assert a.incrementParam(1) == 2

However, a.foo++ throws ReadOnlyPropertyException.