RFR: 8258584: java/util/HexFormat/HexFormatTest.java fails on x86_32

[Jie Fu]

Hi all,

java/util/HexFormat/HexFormatTest.java fails on x86_32 due to '-Xmx4G'.
The reason is that -Xmx4G is invalid maximum heap size for 32-bit platforms.
The current implementation only supports maximum 3800M on 32-bit systems [1].

I've tried to reduce the -Xmx size, but it still fails even with -Xmx2G.
So this test seems to be brittle on 32-bit platforms since 2G is already larger than 3800M/2=1900M.
The fix just skips the test for 32-bit systems.

Thanks.
Best regards,
Jie

[1] https://github.com/openjdk/jdk/blob/master/src/hotspot/os/posix/os_posix.cpp#L567

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Commit messages:
 - 8258584: java/util/HexFormat/HexFormatTest.java fails on x86_32

Changes: https://git.openjdk.java.net/jdk/pull/1817/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1817&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8258584
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1817.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1817/head:pull/1817

PR: https://git.openjdk.java.net/jdk/pull/1817