[jdk15u-dev] RFR: 8266171: -Warray-bounds happens in imageioJPEG.c

[Roman Marchenko]

Backport JDK-8266171
Clean backport, no tier1 regression

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Commit messages:
 - Backport b1725550a265c3ffb280969e1b8eabd12aa5bd65

Changes: https://git.openjdk.org/jdk15u-dev/pull/284/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk15u-dev&pr=284&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8266171
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk15u-dev/pull/284.diff
  Fetch: git fetch https://git.openjdk.org/jdk15u-dev pull/284/head:pull/284

PR: https://git.openjdk.org/jdk15u-dev/pull/284