Grails 2.0.0.RC3上的PayPal插件出错

Question

I use grails 2.0.0.rc3, when I install PayPal plugin I have this error:

Error Compilation error: startup failed:
/Users/sartre/.grails/2.0.0.M1/projects/testapp/plugins/paypal-0.6.4/grails-app/controllers/org/grails/paypal/PaypalController.groovy: -1: The return type of java.lang.Object notify() in org.grails.paypal.PaypalController is incompatible with void notify() in java.lang.Object
. At [-1:-1] @ line -1, column -1.
1 error

How can I fix it?

Many thanks for any idea

Answer 1

Incompatibility change in grails 2.0!! It seems that it is related to a small change in grails 2.0.

It is now possible to define controller actions as methods instead of using closures as in previous versions of Grails. (from official doc : http://grails.org/doc/2.0.x/guide/introduction.html#webFeatures )

It behaves like the closure notify in PaypalController overrides the Object.notify method. If you rename notify in notifyPaypal, it should work.