On 19.6.2015 12:23, Alan Bateman wrote:
On 19/06/2015 10:56, Jaroslav Bachorik wrote:
:
According to the JMX spec there should be 2 attributes: 'attribute'
and 'Attribute'
However, there is only one attribute resolved by the JavaBeans
Introspector and it is 'attribute'. Furthermore, the 'getattribute'
method is chosen as the getter method, rather counter-intuitively.
The JMX monitor API specifies that it works like
Introspector.getBeanInfo when it can't extract the value by other means.
Are there are other areas in JMX where Introspector is used?
Both the j.b.Introspector.getReadMethod() and the
SimpleIntrospector.getReadMethod() are used only from
c.s.j.m.Introspector.elementFromComplex() method and only to resolve the
getter for a complex attribute.
So, any change in the SimpleIntrospector will not affect the rest of the
JMX system.
Given this statement in the Monitoring javadocs
(https://docs.oracle.com/javase/8/docs/api/javax/management/monitor/package-summary.html)
"If the above rules do not produce a value, and if introspection, as if
by calling Introspector.getBeanInfo, for the class of v (v.getClass())
identifies a property with the name e, then x is the result of reading
the property value."
I would strongly propose to adjust the SimpleIntrospector to closely
follow the j.b.Introspector functionality.
-JB-
-Alan
