Heads up: Removal of the old build system in JDK8

[Magnus Ihse Bursie]

The new build system ("build-infra") has been the default way of 
building the JDK for almost a year. Keeping the old build system in sync 
with the new requires time and effort, and is getting harder all the time.

So the time has come to finally kill of the old build system for those 
components where the new build system exists (i.e. langtools, jdk, 
corba, jaxp and jaxws -- but not hotspot).

If you have not switched over to using the new build system, this is the 
time!

If you are using build functionality in the old build system that is not 
replicated in the new build system, please let us know.

Apart from building the product, the old build system (the "make" 
directories in the top-level repo or any sub repo) contains a number of 
other utilities, scripts and make targets to produce results other than 
the product itself. These will not be removed (unless the functionality 
is replaced in the new build system), but we would still like to hear 
from you what are actively being used, and what are just remnants that 
can be removed.

Please direct your replies to the build-dev at openjdk.java.net list.

/Magnus