[jdk8u-dev] RFR: 8285696: AlgorithmConstraints:permits not throwing IllegalArgumentException when 'alg' is null [v2]

[Alexey Bakhtin]

> This is a follow-up fix for the JDK-8285398: Cache the results of constraint checks
> Simple fix to prevent JCK failure
> 
> This fix should be applied after JDK-8285398

Alexey Bakhtin has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

  Backport 47951655acacba515c0d69f5192257664f887dba

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Changes:
  - all: https://git.openjdk.org/jdk8u-dev/pull/382/files
  - new: https://git.openjdk.org/jdk8u-dev/pull/382/files/51204bb5..f826982e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=382&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=382&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/382.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/382/head:pull/382

PR: https://git.openjdk.org/jdk8u-dev/pull/382