RFR: 8258951: java/net/httpclient/HandshakeFailureTest.java failed with "RuntimeException: Not found expected SSLHandshakeException in java.io.IOException"

[Daniel Fuchs]

Please find here a patch that fixes intermittent failures in HandshakeFailureTest.java. The test expects an SSLException but finds an AssertionError instead. The AssertionError was too strong and was fired before the Http2Connection had a chance to raise the proper ALPNException.

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Commit messages:
 - 8258951: java/net/httpclient/HandshakeFailureTest.java failed with "RuntimeException: Not found expected SSLHandshakeException in java.io.IOException"
 - 8258951: java/net/httpclient/HandshakeFailureTest.java failed with "RuntimeException: Not found expected SSLHandshakeException in java.io.IOException"

Changes: https://git.openjdk.java.net/jdk/pull/5184/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5184&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8258951
  Stats: 8 lines in 2 files changed: 3 ins; 0 del; 5 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5184.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5184/head:pull/5184

PR: https://git.openjdk.java.net/jdk/pull/5184