[GROOVY-9562] Base class property causes CCE

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.11
• Fix Version/s: 4.0.0-alpha-1, 3.0.5, 2.5.13
• Component/s: Static compilation
• Assignee: Eric Milles
• Reporter: Daniil Ovchinnikov
• Created: 18/May/20 15:47
• Updated: 23/Jul/20 14:16
• Resolved: 30/May/20 14:50

Description

playground.groovy

abstract class BaseClass {
    def prop = 42
}

abstract class BaseClass2 {
    def prop = 69
}

@groovy.transform.CompileStatic
class Impl extends BaseClass {
    def usage() {
        new BaseClass2() {
            def foo() {
                prop
            }
        }
    }
}

assert new Impl().usage().foo() == 69

Output:

Caught: java.lang.ClassCastException: Impl$1 cannot be cast to BaseClass
java.lang.ClassCastException: Impl$1 cannot be cast to BaseClass
	at Impl$1.foo(playground.groovy)
	at Impl$1$foo.call(Unknown Source)
	at playground.run(playground.groovy:20)