[jdk11u-dev] RFR: 8295777: java/net/httpclient/ConnectExceptionTest.java should not rely on system resolver

[Goetz Lindenmaier]

I backport this for parity with 11.0.19-oracle.

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Commit messages:
 - Backport 65c84e0cf890df2a604ac07213327be007227e77

Changes: https://git.openjdk.org/jdk11u-dev/pull/1779/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1779&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8295777
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1779.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1779/head:pull/1779

PR: https://git.openjdk.org/jdk11u-dev/pull/1779