Test-driven development can help to build software better and faster.
It offers more than just simple validation of correctness; it can also
drive the design of a program. In object-oriented programming, good
use of encapsulation can make observing and testing some design
features difficult. Further, the developer has to define classes and
methods before compiling tests that use those classes and methods.
Using the Java Management Extensions -- JMX -- to observe internal
state provides an elegant alternative to reflection and compiler hacks.
As a byproduct it provides a JMX interface for the completed system.
This talk will cover how to benefit from unit testing with
JMX, and the code and overhead required to use the technique.
David Walend started learning Java with the alpha 3 release in 1994 after a kind computer science professor at Tufts University overheard his tantrum on distributed simulations, memory management, multithreaded code and meteorologists of questionable parentage.
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