[jdk11u-dev] RFR: 8300773: Address the inconsistency between the constant array and pool size

[Goetz Lindenmaier]

A fix in the bcel library.

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Commit messages:
 - Backport a34f2d3728c077d1dbdfa313f1bf29629fbc32f6

Changes: https://git.openjdk.org/jdk11u-dev/pull/1689/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1689&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8300773
  Stats: 20 lines in 2 files changed: 13 ins; 0 del; 7 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1689.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1689/head:pull/1689

PR: https://git.openjdk.org/jdk11u-dev/pull/1689