[jdk8u] RFR: 8304143: Exclude duplicated class on linux, aix, and macos [v2]

[Adam Farley]

> This change excludes the duplicated class SystemMetrics, and ensures we use the platform-specific version of the SystemMetrics class instead.

Adam Farley has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

  8304143: Fix duplicated class build error on linux, aix, and macos
  
  This change ensures that each of the affected platforms only uses
  one copy of the SystemMetrics class. Either the stub version, or
  a platform-specific version.
  
  Signed-off-by: Adam Farley <adfarley at redhat.com>

-------------

Changes:
  - all: https://git.openjdk.org/jdk8u/pull/40/files
  - new: https://git.openjdk.org/jdk8u/pull/40/files/21be0c1d..d4e4f5b9

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk8u&pr=40&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk8u&pr=40&range=00-01

  Stats: 66 lines in 3 files changed: 0 ins; 65 del; 1 mod
  Patch: https://git.openjdk.org/jdk8u/pull/40.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u pull/40/head:pull/40

PR: https://git.openjdk.org/jdk8u/pull/40