java - SSLHandshakeException with jlink created runtime

Question

I've got a dropwizard app, which runs fine with the standard JRE.

I've tried creating a runtime using jlink which is considerably smaller:

/Library/Java/JavaVirtualMachines/jdk-11.jdk/Contents/Home/bin/jlink --no-header-files --no-man-pages --compress=2 --strip-debug --add-modules java.base,java.compiler,java.desktop,java.instrument,java.logging,java.management,java.naming,java.scripting,java.security.jgss,java.sql,java.xml,jdk.attach,jdk.jdi,jdk.management,jdk.unsupported --output jre

If I run it with the jlink created runtime it throws this error connecting to redis (which has stunnel in front of it).

ERROR [2019-03-31 09:12:20,080] com.company.project.core.WorkerThread: Failed to process message.
! javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
! at java.base/sun.security.ssl.Alert.createSSLException(Unknown Source)
! at java.base/sun.security.ssl.Alert.createSSLException(Unknown Source)
! at java.base/sun.security.ssl.TransportContext.fatal(Unknown Source)
! at java.base/sun.security.ssl.Alert$AlertConsumer.consume(Unknown Source)
! at java.base/sun.security.ssl.TransportContext.dispatch(Unknown Source)
! at java.base/sun.security.ssl.SSLTransport.decode(Unknown Source)
! at java.base/sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
! at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
! at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
! at java.base/sun.security.ssl.SSLSocketImpl.ensureNegotiated(Unknown Source)
! at java.base/sun.security.ssl.SSLSocketImpl$AppOutputStream.write(Unknown Source)
! at redis.clients.jedis.util.RedisOutputStream.flushBuffer(RedisOutputStream.java:52)
! at redis.clients.jedis.util.RedisOutputStream.flush(RedisOutputStream.java:133)
! at redis.clients.jedis.Connection.flush(Connection.java:300)
! ... 9 common frames omitted
! Causing: redis.clients.jedis.exceptions.JedisConnectionException: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
! at redis.clients.jedis.Connection.flush(Connection.java:303)
! at redis.clients.jedis.Connection.getStatusCodeReply(Connection.java:235)
! at redis.clients.jedis.BinaryJedis.auth(BinaryJedis.java:2225)
! at redis.clients.jedis.JedisFactory.makeObject(JedisFactory.java:119)
! at org.apache.commons.pool2.impl.GenericObjectPool.create(GenericObjectPool.java:888)
! at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:432)
! at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:361)
! at redis.clients.jedis.util.Pool.getResource(Pool.java:50)
! ... 2 common frames omitted
! Causing: redis.clients.jedis.exceptions.JedisConnectionException: Could not get a resource from the pool
! at redis.clients.jedis.util.Pool.getResource(Pool.java:59)
! at redis.clients.jedis.JedisPool.getResource(JedisPool.java:234)

The stunnel server logs show:

redis_1  | 09:12:20 stunnel.1 | 2019.03.31 09:12:20 LOG7[23]: TLS alert (write): fatal: handshake failure
redis_1  | 09:12:20 stunnel.1 | 2019.03.31 09:12:20 LOG3[23]: SSL_accept: 141F7065: error:141F7065:SSL routines:final_key_share:no suitable key share
redis_1  | 09:12:20 stunnel.1 | 2019.03.31 09:12:20 LOG5[23]: Connection reset: 0 byte(s) sent to TLS, 0 byte(s) sent to socket

Are there some crypt algorithms being left out by jlink?

Answer 1

As rich mentions in a comment

Hmmn. If I add jdk.crypto.ec it works - why would jdeps have left that one out, if that one, would there be any others it's left out?

adding jdk.crypto.ec to the modules list solved the problem.