[GROOVY-9660] Unexpected error when trait used as a generic type bound

• Type: Question
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.5
• Fix Version/s: 2.5.14, 3.0.6
• Component/s: Groovy Console
• Labels: build
• Environment: groovy 3.0.5 + jdk1.8
• Assignee: Eric Milles
• Reporter: hdfg159
• Created: 26/Jul/20 11:44
• Updated: 02/May/21 09:22
• Resolved: 24/Jan/21 17:18

Description

code example :

trait Data {}

class TestData implements Data {}

class AbstractData<D extends Data>{ D data }

def test = new AbstractData<TestData>()

 

when i compile groovy，it compile failed:

1 compilation error:

The type TestData is not a valid substitute for the bounded parameter <D extends Data>
 at line: 7, column: 29

 

Is this the wrong way to write it？