RFR: 8300939: sun/security/provider/certpath/OCSP/OCSPNoContentLength.java fails due to network errors

[Jamil Nimeh]

Hello all,

This addresses a test bug where the SimpleOCSPServer would reset the connections made by a client CertPathValidator.  I've made some minor changes to how the network data is read and sent from OCSP HTTP GET URLs and on responses, respectively.  This will take the test off the problem list as well.

This has been taken through hundreds of test runs and does not see the failure any longer where there used to be intermittent failures.  Also multiple tier2 runs have been executed with no failures.

- JBS: https://bugs.openjdk.org/browse/JDK-8300939

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Commit messages:
 - 8300939: sun/security/provider/certpath/OCSP/OCSPNoContentLength.java fails due to network errors
 - Merge with main
 - Restore policy Root.java lost during merge
 - Merge with main
 - 8300946: Add sun/security/provider/certpath/OCSP/OCSPNoContentLength to ProblemList
 - Remove dead commented code
 - Throw exception directly from non 200 HTTP response codes
 - Moved SimpleOCSPServer to use CountdownLatch for ready state, updated tests
 - 8296343: CPVE thrown on missing content-length in OCSP response

Changes: https://git.openjdk.org/jdk/pull/12370/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12370&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8300939
  Stats: 55 lines in 3 files changed: 39 ins; 2 del; 14 mod
  Patch: https://git.openjdk.org/jdk/pull/12370.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12370/head:pull/12370

PR: https://git.openjdk.org/jdk/pull/12370