[GROOVY-5497] Returning "null" in a function reports an invalid type checking error

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0-rc-2
• Fix Version/s: 2.0-rc-3
• Component/s: Static Type Checker
• Assignee: Cédric Champeau
• Reporter: Ariel Morelli Andres
• Created: 05/Jun/12 13:14
• Updated: 15/Jun/12 22:56
• Resolved: 11/Jun/12 04:35

Description

The following code is valid, but it reports some compilation errors:

@groovy.transform.CompileStatic
class Test {
 
  List getList() {
    null
  }
  
}

1 compilation error:

[Static type checking] - Cannot return value of type java.lang.Object on method returning type java.util.List -> java.util.List <E extends java.lang.Object -> java.lang.Object>
at line: 5, column: 5