[jdk21u-dev] RFR: 8311644: Server should not send bad_certificate alert when the client does not send any certificates [v2]

[Goetz Lindenmaier]

> I backport this as prereq of JDK-8350807.
> 
> Resolved import in test file TLSBase.java because later change [8330278: Have SSLSocketTemplate.doClientSide use loopback address](https://github.com/openjdk/jdk/commit/0eff492e4107abc5624f0c3445877bf38629a980)
> was already backported.
> 
> Tests all pass.

Goetz Lindenmaier 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 f62b5789add23adda2634a1cfb80f48b4387be74

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Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/2069/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/2069/files/83846abc..6d33f98d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2069&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2069&range=00-01

  Stats: 59 lines in 1 file changed: 59 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2069.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2069/head:pull/2069

PR: https://git.openjdk.org/jdk21u-dev/pull/2069