Fix https://bz.apache.org/bugzilla/show_bug.cgi?id=57931 Ensure that the TLS connection is closed cleanly so that the client receives the appropriate error code when the connection is terminated due to invalid / missing client cert (or any other reason during the handshake)
tomcat/tc8.0.x/trunk/
tomcat/tc8.0.x/trunk/java/org/apache/tomcat/util/net/SecureNio2Channel.java