Hi ,When a menu action generate a collection, like listAll() in 
SimpleObjectMenu,?and a button was contributed to this collection, If click 
this button(action) ,method ?listAll() will be called again.
For example:We change some code slightly ?in SimpleObject.class
.............????????@Action(invokeOn = InvokeOn.OBJECT_AND_COLLECTION)    
public SimpleObject delete() {       // just for demo 
        return this;
    }...........when call List All on menu, it will list all Simple Objects,and 
<Delete> button will show on top of collection.If we?pick a checkbox and click 
<Delete> button, listAll() method will be called again.This behavior is 
nonsense.Thanks.James Chu


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