ADDITIONAL SYSTEM INFORMATION :
MacOS Mojave

A DESCRIPTION OF THE PROBLEM :
I'm getting a NullPointerException when trying to establish an SSL connection from a Java 11 client to a C++ server running on the same macOS Mojave platform. The C++ server uses the macOS SecureTransport APIs for SSL communications and only access TLS connection up to 1.1 (rejects TLS 1.2/1.3).


REGRESSION : Last worked in version 8u191

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
brew install ice
git clone https://github.com/zeroc-ice/ice-demos -b 3.7
cd ice-demos/java
./gradlew build
cd Glacier2/callback
java -jar build/libs/server.jar &
glacier2router --Ice.Config=config.glacier2 --IceSSL.ProtocolVersionMax=tls1_1 &
java -jar build/libs/client.jar

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Successful connection establishment after filling username / password.
ACTUAL -
!! 11/9/18 11:16:21:951 Client: error: Ice.ThreadPool.Client-0: exception in `Ice.ThreadPool.Client':
   java.lang.NullPointerException
    at java.base/sun.security.ssl.OutputRecord.changeWriteCiphers(OutputRecord.java:173)
    at java.base/sun.security.ssl.ChangeCipherSpec$T10ChangeCipherSpecProducer.produce(ChangeCipherSpec.java:112)
    at java.base/sun.security.ssl.Finished$T12FinishedProducer.onProduceFinished(Finished.java:392)
    at java.base/sun.security.ssl.Finished$T12FinishedProducer.produce(Finished.java:376)
    at java.base/sun.security.ssl.SSLHandshake.produce(SSLHandshake.java:436)
    at java.base/sun.security.ssl.ServerHelloDone$ServerHelloDoneConsumer.consume(ServerHelloDone.java:173)
    at java.base/sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:392)
    at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:444)
    at java.base/sun.security.ssl.SSLEngineImpl$DelegatedTask$DelegatedAction.run(SSLEngineImpl.java:1065)
    at java.base/sun.security.ssl.SSLEngineImpl$DelegatedTask$DelegatedAction.run(SSLEngineImpl.java:1052)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at java.base/sun.security.ssl.SSLEngineImpl$DelegatedTask.run(SSLEngineImpl.java:999)
    at com.zeroc.IceSSL.TransceiverI.handshakeNonBlocking(TransceiverI.java:343)
    at com.zeroc.IceSSL.TransceiverI.initialize(TransceiverI.java:61)
    at com.zeroc.Ice.ConnectionI.initialize(ConnectionI.java:2111)
    at com.zeroc.Ice.ConnectionI.message(ConnectionI.java:1093)
    at com.zeroc.IceInternal.ThreadPool.run(ThreadPool.java:417)
    at com.zeroc.IceInternal.ThreadPool.access$500(ThreadPool.java:12)
    at com.zeroc.IceInternal.ThreadPool$EventHandlerThread.run(ThreadPool.java:786)
    at java.base/java.lang.Thread.run(Thread.java:834)


CUSTOMER SUBMITTED WORKAROUND :
Disabling TLS 1.2 and 1.3 in the Java client:
java -jar build/libs/client.jar --IceSSL.Protocols="TLS1_1"


FREQUENCY : always