RFR: 8273026: Slow LoginContext.login() on multi threading application [v4]

Larry-N duke at openjdk.java.net
Wed Oct 27 18:43:41 UTC 2021

> This fix adds a cache of service provider classes to LoginContext (in particular, it's a cache of LoginModules classes). The approach helps to increase the performance of the LoginContext.login() method significantly, especially in a multi-threading environment. Service Loader is used for polling on Service Provider classes, without instantiating LoginModules object if Service Provider name doesn't match record in .config file. The set of service providers is cached for each Context Loader separately.
> This code passed successfully tier1 and tier2 tests on mac os.

Larry-N has updated the pull request incrementally with one additional commit since the last revision:

  Address review notices


  - all: https://git.openjdk.java.net/jdk/pull/5748/files
  - new: https://git.openjdk.java.net/jdk/pull/5748/files/fbe99ed7..c4d744a0

 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=5748&range=03
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=5748&range=02-03

  Stats: 15 lines in 1 file changed: 3 ins; 1 del; 11 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5748.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5748/head:pull/5748

PR: https://git.openjdk.java.net/jdk/pull/5748

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