[Jikesrvm-core] Re: [Jikesrvm-regression] mauve failures: 0 ; classpath CVS head regression FAILED 32 tests

[David P G. <gr...@us...>]

      Changes in classpath cvs to java.io.FileDescriptor broke the build of
Jikes RVM vs. the classpath CVS head.

      This puts us in a slightly awkward situation because at first glance
if we want Jikes RVM to build against both the classpath CVS head and
version 0.05 of classpath we're going to have to add more preprocessing to
our code to use a different java.io.FileDescriptor API depending on the
classpath version.  This may be unavoidable

There are two changes that are an issue:
      (1) getNativeFD was renamed to getNativeFd
      (2) the constructor that takes a unix fd and the setNativeFD method
were made private instead of package so we can't access them from
java.io.JikesRVMSupport anymore.

      Julian, could you take a look.  This is a little harrier than I want
to deal with myself.  In the long run I suspect the right answer for
JikesRVM is to push for a VMFileDescritptor. We may need to provide a patch
for this to make it happen.  Especially since in the long run we're going
to want to restore the use of non-blocking file io that we had in the
hybrid libraries.

      I'd like to try to get some resolution to this fairly soon because if
we can't build against classpath CVS head in our nightly regression tests
we risk more surprises like this in the future....

--dave