How can I get spock to execute a different method at runtime using an Annotation Extension?

First, in case there is a simpler way to solve this problem, here is an outline of what I am trying to accomplish. I want to Annotate my test methods with a KnownIssue annotation (extending AbstractAnnotationDrivenExtension) that takes a defect ID as a parameter and checks the status of the defect before executing the tests. If the defect is fixed, it will continue execution, if it is not fixed I want it to ignore the test, but if it is closed or deleted, I want to induce a test failure with logging stating that the test should be removed or updated and the annotation removed since the defect is now closed or deleted.

I have everything working up until inducing a test failure. What I have tried that doesn't work:

• Throwing an exception in the visitFeatureAnnotation method, which causes a failure which causes all tests thereafter not to execute.


• Creating a class that extends Spec and including a test method that logs a message and fails, then tried to use feature.featureMethod.setReflection() to set the method to execute to the other method. In this case, I get a java.lang.IllegalArgumentException : object is not an instance of declaring class


• I then tried using ExpandoMetaClass to add a method directly to the declaringClass, and point feature.featureMethod.setReflection to point to it, but I still get the same IllegalArgumentException.

Here is what I have inside of my visitFeatureAnnotation method for my latest attempt:

def myMetaClass = feature.getFeatureMethod().getReflection().declaringClass.metaClass
myMetaClass.KnownIssueMethod = { -> return false }
feature.featureMethod.setReflection(myMetaClass.methods[0].getDoCall().getCachedMethod());

Any other ideas on how I could accomplish this, and either induce a test failure, or replace the method with another that will fail?