[GROOVY-7759] @Lazy does not work when used in a Trait

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.4.6
• Fix Version/s: 4.0.0-alpha-1, 3.0.6
• Component/s: groovy-runtime
• Assignee: Eric Milles
• Reporter: David Cole
• Created: 21/Feb/16 17:32
• Updated: 11/Nov/20 02:01
• Resolved: 10/Aug/20 13:53

Description

@Lazy annotation is not honored when used in a trait.
Here is an example script demonstrating the issue:

    class MyBase{
      @Lazy String test = { 'test' }()
    }
    class TestBaseClass extends MyBase{}
    def tb = new TestBaseClass();

    //Dump the current state to output an assert test hasn't been initialized
    println "Testing @Lazy on a Class.."
    println tb.dump()
    assert tb.dump().contains('test=null') //FOR A CLASS, THIS WILL SUCCEED

    //Access the test property causing initialization
    println "Accessing the test property."
    assert tb.test

    //Dump the current state to output an assert test has now been initialized
    println tb.dump()
    assert tb.test == 'test'

    trait MyTrait{
      @Lazy String test = { 'test' }()
    }
    class TestClass implements MyTrait{}
    def t = new TestClass();

    //Dump the current state to output an assert test hasn't been initialized
    println "\nTesting @Lazy on a Trait.."
    println t.dump()
    assert t.dump().contains('test=null') //FOR A TRAIT, THIS WILL FAIL THE ASSERTION - A BUG?

    //Access the test property causing initialization
    println "Accessing the test property."
    assert t.test

    //Dump the current state to output an assert test has now been initialized
    println t.dump()
    assert t.test == 'test'

Issue Links

• is duplicated by: GROOVY-7760 Lazy annotation does not work with traits