Problem with openjdk version "11.0.8"

I wanted to report a strange issue faced installing mendelson_opensource_as2_1.1b57 on CENTOS 8.
I first installed openjdk 11 via yum command. This resulted in the installation of openjdk version "11.0.8 2020-07-14 LTS".
After that, the setup of Mendelson goes fine, but the client GUI does not start. A window appears saying "Connecting to localhost/127...." and stays like that forever.
I can telnet to port 1235 locally and from remote without issues, but the JAVA client seems unable to connect.

I therefore installed an earlier version of openjdk ("11.0.1" 2018-10-16) and with that I could launch mendelson without issues.
I don't know if someone has a better idea of what could be the cause, but hopefully this workaround can help other people for now.



Profile picture for user service


the client-server connection of the mendelson_opensource_as2_1.1b57 tries to perform a TLSv1 handshake. This is no longer permitted under CentOS. We changed the handshake to TLSv1.2 in the commercial version already. Perhaps there is a setting in CentOS to allow TLSv1?



Thank you for the reply, however the issue does not seem to be related to CENTOS in particular, but with its (current) default java 11 version.
When I switched from using openJDK version "11.0.8 2020-07-14 LTS" to openJDK version "11.0.1 2018-10-16", the Mendelson client started working.

To make it work I only changed the path of the java command in the .sh file to point to the older version, so everything else was exactly the same.
I also checked that both Java versions had jce unlimited strength enabled (in any case I think with latest versions of Java that comes by default)