That is strange behavior, since as you point out it does not set a
parametrized value, however, I wonder if there is some assumption that
the setFoo() method may be a mutator anyway, e.g. setDefaults() or
something like that? Just guessing.
In this case it may be safer to follow the RI -- but I'm open to persuasion.
Regards,
Tim
Alexei Zakharov wrote:
> Hi all,
>
> Let me disturb you with another boring "RI inconsistency in beans"
> –type of message. :) It seems I found a bug in RI. In
> java.beans.EventHandler. I think RI incorrectly determines properties
> here. According to spec, common sense and even the RI's implementation
> of java.beans.Introspector the following bean should not contain any
> properties:
>
> public static class MyBean {
> public void setProp1() {}
> }
>
> because "setProp1()" is not a valid setter method – it does not
> contain a new value to set.
> However, the following test fails on RI:
>
> <---
> import java.beans.*;
>
> public class TestBeanInfo1 {
> public static class MyBean {
> public void setProp1() {}
> }
>
> public static void main(String argv[]) throws Exception {
> MyBean bean = new MyBean();
> // "prop1" is neither the name of writeable property nor the
> name of any public method
> Object proxy = EventHandler.create(
> PropertyChangeListener.class, bean, "prop1");
>
> // just to show that Introspector doesn't see the property
> with name "prop1"
> PropertyDescriptor[] pds = Introspector.getBeanInfo(MyBean.class,
> Introspector.USE_ALL_BEANINFO).getPropertyDescriptors();
> for (int i = 0; i < pds.length; i++) {
> System.out.println("Property found: " + pds[i].getName());
> }
>
> // should throw exception
> try {
> ((PropertyChangeListener) proxy).propertyChange(
> new PropertyChangeEvent(bean, "prop1", "1", "2"));
> System.out.println("FAIL");
> } catch (Throwable t) {
> System.out.println("PASS");
> }
> }
> }
> <---
>
> So it determines "prop1" as a valid property. IMHO this behavior is
> inconsistent and we should not follow RI. But I like to hear opinions
> from the rest of the community.
>
> Thanks,
>
>
--
Tim Ellison ([EMAIL PROTECTED])
IBM Java technology centre, UK.
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