qwe.groovy

import groovy.transform.CompileStatic

class WaitTest {

    void testFail() {
        Closure c = {
            shout()
            println toString()
            println delegate.toString()
            println this.toString()
            wait(100)
            shout()
        }
        c.delegate =  new Aha()
        c.resolveStrategy = Closure.DELEGATE_ONLY

        synchronized (this) {
            c.call()
        }
    }
}

@CompileStatic
class Aha {
    void shout() {
        println "AHA!"
    }

    String toString() {
        "HAHAHAHAHA!"
    }
}

new WaitTest().testFail()