Java Plugin Task Dependencies

My confusion over how to determine the dependencies for optimizing tasks was not
actually a problem with the API to determine dependencies, but a
misunderstanding of how the dependencies were declared.  I do think, however,
that it may be a good idea to make some changes in the dependency relationships.

The current dependency chain established by the java plugin does not really
specify which tasks need as their input, the output of another task.  The
current dependency chain is just establishes a "lifecycle" of tasks that will be
executed in a particular order.  For example, processTestResources currently
depends on compile, not because the processTestResources task is really
dependent on compile, but just to fit the task in a lifecycle order.

I would rather see a task A really only depend on task B if task A will consume
the the output of task B in some manner.  I think that this does really help
with automatic optimization.  This also fits in nicely with Adam's ideas about a
dependency chain based off of input/output artifacts.

With that in mind, I would like to see the dependencies for the java plugin
tasks changed as shown in the attached image.

--
Steve Appling
Automated Logic Research Team


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