8376610: Test javax/net/ssl/TLS/TestJSSEClientDefaultProtocol.java then completed

[myankelev]

Introduced a countdown latch to prevent intermittent failure

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Issue

• JDK-8376610: Test javax/net/ssl/TLS/TestJSSEClientDefaultProtocol.java then completed (Bug - P4)

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[mlbridge]

Webrevs

• 00: Full (5c6b84d4)

[turbanoff]

Suggested change

	var server = CipherTestUtils.mainServer(
	var server = CipherTestUtils.mainServer(