RFR: 8156715: TrustStoreManager does not buffer keystore input stream [v2]

[Artur Barashev]

> Wrap the FileInputStream into a BufferedInputStream which reduces the number of actual file reads when loading a key store.

Artur Barashev has updated the pull request incrementally with one additional commit since the last revision:

  Update copyright

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/25920/files
  - new: https://git.openjdk.org/jdk/pull/25920/files/06da40b2..3a93d3df

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25920&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25920&range=00-01

  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/25920.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25920/head:pull/25920

PR: https://git.openjdk.org/jdk/pull/25920