<i18n dev> RFR: 8290316: Ensure that all directory streams are closed in java.base [v2]

[Ryan Ernst]

> This commit guards uses of Files methods returning path streams in
> java.base to use try-with-resources.

Ryan Ernst has updated the pull request incrementally with one additional commit since the last revision:

  address formatting feedback

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Changes:
  - all: https://git.openjdk.org/jdk/pull/9518/files
  - new: https://git.openjdk.org/jdk/pull/9518/files/bba7406f..c0a09f91

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=9518&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=9518&range=00-01

  Stats: 25 lines in 4 files changed: 3 ins; 4 del; 18 mod
  Patch: https://git.openjdk.org/jdk/pull/9518.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9518/head:pull/9518

PR: https://git.openjdk.org/jdk/pull/9518