RFR: [bworld-apis] Adding more bangs to collections [v5]

[Vicente Romero]

> adding more bangs to collection apis

Vicente Romero has updated the pull request incrementally with one additional commit since the last revision:

  removing manual NPE checks

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

Changes:
  - all: https://git.openjdk.org/valhalla/pull/2112/files
  - new: https://git.openjdk.org/valhalla/pull/2112/files/364c332f..ecb2c7e9

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=2112&range=04
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=2112&range=03-04

  Stats: 7 lines in 3 files changed: 0 ins; 7 del; 0 mod
  Patch: https://git.openjdk.org/valhalla/pull/2112.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/2112/head:pull/2112

PR: https://git.openjdk.org/valhalla/pull/2112