[GROOVY-5046] incorrect result when using += operator in closure

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.2
• Fix Version/s: 1.8.3, 1.9-beta-4
• Component/s: parser
• Environment: Linux
• Assignee: Jochen Theodorou
• Reporter: Shu-Min Yang
• Created: 26/Sep/11 14:01
• Updated: 29/Sep/11 14:30
• Resolved: 29/Sep/11 14:30

Description

I get incorrect result running the following script with groovy 1.8.2:

a=[3:5]

class B {
        int v;
}

B b = new B();
b.v = 3

clos = {
        if (it!=null)
        {
                a[it.v] += 3
        }
}
clos.call(b)

println 'b.v = ' + b.v
println 'a = ' + a

> groovy test.groovy
b.v = 8
a = 8