[modules-dev] Review request for 6601899

[Dave Bristor]

Hi folks,

This is to fix

6601899 (repo) URLRepository.find*() must not return modules for other than 
the appropriate platform/arch

bugster: http://monaco.sfbay/detail.jsp?cr=6601899
webrev: http://analemma.sfbay.sun.com/java/jdk/ws/libs/rev/6601899/

The bulk of the work involves taking into account platform & arch when 
installing, finding, and listing modules.  There are several simplifications & 
cleanups.  The "interesting" changes are in

LocalRepository
ModuleInfoXMLReader
URLRepository

Changes in those (and to a lesser extent other files) are based on additions 
to RepositoryUtils.

LocalRepositoryTest and URLRepositoryTest were updated to take into account 
platform/arch specifics.  There currently aren't any tests which look for the 
(IMHO unlikely) case of having specified platform but not arch or vice versa. 
  Nor are there (yet) any tests which take into account a user-specified path.

The changes also include a fix to Jam.java so that temp files are deleted on 
exit.  Ditto for JamBuilder.java (only used as part of tests, but equally good 
for it to clean up after itself).

Thanks,
	Dave