RFR: 8290824: Use InputStream.readAllBytes() instead of explicit loops [v2]

[Сергей Цыпанов]

> We can use `InputStream.readAllBytes()` in `ModuleHashes` and `X509CertPath`.

Сергей Цыпанов has updated the pull request incrementally with one additional commit since the last revision:

  8278461: Revert X509CertPath

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Changes:
  - all: https://git.openjdk.org/jdk/pull/9596/files
  - new: https://git.openjdk.org/jdk/pull/9596/files/04415d08..0079ed3b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=9596&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=9596&range=00-01

  Stats: 24 lines in 1 file changed: 17 ins; 0 del; 7 mod
  Patch: https://git.openjdk.org/jdk/pull/9596.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9596/head:pull/9596

PR: https://git.openjdk.org/jdk/pull/9596