[GROOVY-6883] Closure in child class cannot access static method in parent class

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3.3
• Fix Version/s: 2.3.4
• Assignee: Jochen Theodorou
• Reporter: Jason Winnebeck
• Created: 20/Jun/14 09:15
• Updated: 08/Jul/14 15:28
• Resolved: 01/Jul/14 05:54

Description

A regression affecting dynamic Groovy only (@CompileStatic code is not having this problem), a closure in a child class cannot call a static method in a parent class. This behavior was working at least as of 2.1.5.

Closures of a subclass can no longer access static methods of a super class in 2.3.3 dynamic Groovy, while they could in 2.1.5. Adding @CompileStatic to the "fails" method below is one possible workaround. Another workaround is to call the method explicitly as SuperClass.f.

class SuperClass {
        protected static f(String x) { x + " is super" }
}

class ChildClass extends SuperClass {
        public void doit() {
                println works()
                println fails()
        }

        private static def works() { f("Groovy") }
        private static def fails() { return {f("Groovy")}() }
}

new ChildClass().doit()

Result is "groovy is super" and then on the fails method:
groovy.lang.MissingMethodException: No signature of method: ChildClass$_fails_closure1.f() is applicable for argument types: (java.lang.String) values: [Groovy]
Possible solutions: is(java.lang.Object), is(java.lang.Object), any(), find(), any(), find()

Issue Links

• relates to: GROOVY-5261 A static method call inside a static closure bypasses closure delegate behavior