TimeoutException immediately thrown when using both TimedInterrupt and with {} closure on a Map

The attached script.groovy has a very strange behaviour:

class GroovyTimedInterruptAndWithTest {

  @groovy.transform.TimedInterrupt( 60L )
  def test() {
    
    def map = [:]
    
    map.with {
      key1 = 'foo'
      key2 = 42
    }
    
    map
  }
}

new GroovyTimedInterruptAndWithTest().test()

At runtime, the script immediately throws the TimeoutException (whereas the timeout's value given to the @TimedInterrupt annotation is 60 seconds) :

 
java.util.concurrent.TimeoutException: Execution timed out after 60 units. Start time: null
	at GroovyTimedInterruptAndWithTest$_test_closure1.doCall(script.groovy)
	at GroovyTimedInterruptAndWithTest.test(script.groovy:8)
	at GroovyTimedInterruptAndWithTest$test.call(Unknown Source)
	at script.run(script.groovy:17)

The Start time displayed in this stacktrace, which is null, is another strange fact.

Experienced on 1.8.6 but might also occur on all versions including @TimedInterrupt (1.8.0+).

This is not very critical as it's of course possible to write instead:

map['key1']='foo'
map['key2']=42

but the thing is that the script runs fine when commenting the @TimedInterrupt annotation ; so this bug might hide another strange behaviours when using @TimedInterrupt annotation.