trying to run gitblit, on tomcat 9, using JDK 11 occassionaly results in this stack trace:
gitblit | 07-May-2020 04:30:39.247 SEVERE [https-jsse-nio-8443-exec-10] org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun Error running socket processor
gitblit | java.lang.NullPointerException
gitblit | at java.base/sun.security.ssl.HKDF.extract(HKDF.java:93)
gitblit | at java.base/sun.security.ssl.HKDF.extract(HKDF.java:119)
gitblit | at java.base/sun.security.ssl.ServerHello.setUpPskKD(ServerHello.java:1167)
gitblit | at java.base/sun.security.ssl.ServerHello$T13ServerHelloProducer.produce(ServerHello.java:545)
gitblit | at java.base/sun.security.ssl.SSLHandshake.produce(SSLHandshake.java:436)
gitblit | at java.base/sun.security.ssl.ClientHello$T13ClientHelloConsumer.goServerHello(ClientHello.java:1234)
gitblit | at java.base/sun.security.ssl.ClientHello$T13ClientHelloConsumer.consume(ClientHello.java:1170)
gitblit | at java.base/sun.security.ssl.ClientHello$ClientHelloConsumer.onClientHello(ClientHello.java:852)
gitblit | at java.base/sun.security.ssl.ClientHello$ClientHelloConsumer.consume(ClientHello.java:813)
gitblit | at java.base/sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:392)
gitblit | at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:444)
gitblit | at java.base/sun.security.ssl.SSLEngineImpl$DelegatedTask$DelegatedAction.run(SSLEngineImpl.java:1061)
gitblit | at java.base/sun.security.ssl.SSLEngineImpl$DelegatedTask$DelegatedAction.run(SSLEngineImpl.java:1048)
gitblit | at java.base/java.security.AccessController.doPrivileged(Native Method)
gitblit | at java.base/sun.security.ssl.SSLEngineImpl$DelegatedTask.run(SSLEngineImpl.java:995)
gitblit | at org.apache.tomcat.util.net.SecureNioChannel.tasks(SecureNioChannel.java:443)
gitblit | at org.apache.tomcat.util.net.SecureNioChannel.handshakeUnwrap(SecureNioChannel.java:507)
gitblit | at org.apache.tomcat.util.net.SecureNioChannel.handshake(SecureNioChannel.java:238)
gitblit | at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1616)
gitblit | at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
gitblit | at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
gitblit | at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
gitblit | at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
gitblit | at java.base/java.lang.Thread.run(Thread.java:834)
When the clients are trying to pull files from the gitblit GUI.
Possibly of interest, until I updated to the 11.0.7 version of the JDF, I was seeing this error: Open JDK 11 HTTP/2 Handshake ServerHello java.util.NoSuchElementException
Where the fixed the mis-use of the Optional here: https://bugs.openjdk.java.net/browse/JDK-8218889 but perhaps, didn't actually address the root problem?
Or any other thoughts as to what is triggering this error? I'm using a self-signed cert here, FYI. The client is Firefox, and the java release is
openjdk version "11.0.7" 2020-04-14 OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.7+10) OpenJDK 64-Bit Server VM AdoptOpenJDK (build 11.0.7+10, mixed mode)
Running inside an alpine linux docker system.
Chasing down an issue where gitblit has occassional 1 minute timeouts, and finding this in the log. Not sure if related, or not....
Looks like it has also been found in tomcat https://bz.apache.org/bugzilla/show_bug.cgi?id=64105, and reported here
https://bugs.openjdk.java.net/browse/JDK-8241248
Since I can't provide info on the openjdk bug tracker, I can tell you that the client that typically causes it for me is Firefox 75 on linux.