[jdk8u-dev] RFR: 8296343: CPVE thrown on missing content-length in OCSP response

[Alexey Pavlyutkin]

Hi!

Here is backport of **[JDK-8296343: CPVE thrown on missing content-length in OCSP response](https://bugs.openjdk.org/browse/JDK-8296343)**. The patch from `11u` applied with the following changes (except the path shuflling):

**`jdk/src/java.base/share/classes/sun/security/provider/certpath/OCSP.java`**
- reading response content from the input stream reworked due to `InputStream.readAllBytes()` and `IOUtils.readExactlyNBytes()` are not available in `8`

**`jdk/test/sun/security/provider/certpath/OCSP/OCSPNoContentLength.java`**
- unsupported `List.of()` and `Set.of()` replaced with equivalent code
- added a newline at the end of the file

Verification (amd64/20.04): newly added `test/jdk/sun/security/provider/certpath/OCSP/OCSPNoContentLength.java` **FAILS**, will be fixed by backporting of [JDK-8300939](https://bugs.openjdk.org/browse/JDK-8300939)
Regression (amd64/20.04): `jdk_security`

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Depends on: https://git.openjdk.org/jdk8u-dev/pull/331

Commit messages:
 - removing trailing whitespaces
 - cleaning up
 - properly fix
 - Backport 1a3cb8c5018bc016c2ad6b078e4abe13b39d151c

Changes: https://git.openjdk.org/jdk8u-dev/pull/332/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=332&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8296343
  Stats: 432 lines in 9 files changed: 310 ins; 32 del; 90 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/332.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/332/head:pull/332

PR: https://git.openjdk.org/jdk8u-dev/pull/332