[jboss-jira] [JBoss JIRA] (WFLY-11663) NullPointerException - with SNI configured on IBM JDK 1.8

[Jan Stourac (Jira)]

Jan Stourac created WFLY-11663:
----------------------------------

             Summary: NullPointerException - with SNI configured on IBM JDK 1.8
                 Key: WFLY-11663
                 URL: https://issues.jboss.org/browse/WFLY-11663
             Project: WildFly
          Issue Type: Bug
          Components: Security, Web (Undertow)
    Affects Versions: 15.0.1.Final
         Environment: IBM JDK 1.8:
{code}
java version "1.8.0_181"
Java(TM) SE Runtime Environment (build 8.0.5.20 - pxa6480sr5fp20-20180802_01(SR5 FP20))
IBM J9 VM (build 2.9, JRE 1.8.0 Linux amd64-64-Bit Compressed References 20180731_393394 (JIT enabled, AOT enabled)
OpenJ9   - bd23af8
OMR      - ca1411c
IBM      - 98805ca)
JCL - 20180719_01 based on Oracle jdk8u181-b12
{code}
            Reporter: Jan Stourac
            Assignee: Darran Lofthouse


When running with IBM JDK 1.8, there is an NPE during the request performed against https-listener which has configured 'server-ssl-sni-context' instance (when using standard 'server-ssl-context' no exception is present):
{code}
$ curl https://localhost:8443 -k
curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to localhost:8443
{code}
related exception in server.log:
{code}
18:23:01,227 ERROR [io.undertow.request.io] (default I/O-6) UT005090: Unexpected failure: java.lang.NullPointerException
	at io.undertow.protocols.ssl.SslConduit.doUnwrap(SslConduit.java:772)
	at io.undertow.protocols.ssl.SslConduit.read(SslConduit.java:567)
	at org.xnio.conduits.ConduitStreamSourceChannel.read(ConduitStreamSourceChannel.java:127)
	at io.undertow.server.protocol.http.AlpnOpenListener$AlpnConnectionListener.handleEvent(AlpnOpenListener.java:348)
	at io.undertow.server.protocol.http.AlpnOpenListener.handleEvent(AlpnOpenListener.java:305)
	at io.undertow.server.protocol.http.AlpnOpenListener.handleEvent(AlpnOpenListener.java:64)
	at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
	at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:291)
	at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:286)
	at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
	at org.xnio.ChannelListeners$DelegatingChannelListener.handleEvent(ChannelListeners.java:1092)
	at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
	at org.xnio.nio.QueuedNioTcpServer$1.run(QueuedNioTcpServer.java:131)
	at org.xnio.nio.WorkerThread.safeRun(WorkerThread.java:612)
	at org.xnio.nio.WorkerThread.run(WorkerThread.java:479)
{code}
When I switch to OpenSSL provider using
{code}
/subsystem=elytron/server-ssl-context=defaultSSC:write-attribute(name=providers,value=openssl)
{code}
then the exception disappears.

----
Note: sometimes I can also see shorter exception stacktrace:
{code}
18:17:15,711 ERROR [io.undertow.request.io] (default I/O-2) UT005090: Unexpected failure: java.lang.NullPointerException
	at io.undertow.protocols.ssl.SslConduit.doUnwrap(SslConduit.java:772)
	at io.undertow.protocols.ssl.SslConduit.doHandshake(SslConduit.java:648)
	at io.undertow.protocols.ssl.SslConduit.access$900(SslConduit.java:63)
	at io.undertow.protocols.ssl.SslConduit$SslReadReadyHandler.readReady(SslConduit.java:1136)
	at org.xnio.nio.NioSocketConduit.handleReady(NioSocketConduit.java:89)
	at org.xnio.nio.WorkerThread.run(WorkerThread.java:591)
{code}



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