hg: jdk/sandbox: DTLS fix for proper closing

[anthony.scarpino at oracle.com]

Changeset: 4a53dd94403e
Author:    ascarpino
Date:      2018-05-18 19:07 -0700
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/4a53dd94403e

DTLS fix for proper closing

! src/java.base/share/classes/sun/security/ssl/CipherSuite.java
! src/java.base/share/classes/sun/security/ssl/ProtocolVersion.java
! src/java.base/share/classes/sun/security/ssl/TransportContext.java
! test/jdk/javax/net/ssl/TLSCommon/SSLEngineTestCase.java