[cf-dev] Jenkins release build failed : Received fatal alert: protocol_v

[Simon Bernard <contact@xxxxxxxxxxxxxxx>]

Hi californium committers,

  I faced some issues releasing Leshan during deploy phase:

 [ERROR] Failed to execute goal on project leshan-core-cf:
 Could not resolve dependencies for project org.eclipse.leshan:leshan-core-cf:bundle:1.0.0-M8:
 Failed to collect dependencies at org.eclipse.californium:californium-core:jar:2.0.0-M11:
 Failed to read artifact descriptor for org.eclipse.californium:californium-core:jar:2.0.0-M11:
 Could not transfer artifact org.eclipse.californium:californium-core:pom:2.0.0-M11 from/to central (https://repo.maven.apache.org/maven2):
 Received fatal alert: protocol_version -> [Help 1]

  After searching, it seems that sonatype does not allow TLS1.0/1.1 anymore : https://central.sonatype.org/articles/2018/May/04/discontinued-support-for-tlsv11-and-below/

 Leshan project was affected as we are using jdk7 to build.
 I fixed this by adding -Dhttps.protocols=TLSv1.2 to the JVM Options of my deploy maven build step.

 I just shared this information here as I know we are using jdk7 too.

 @Achim, you didn't face this issue when you released the 2.0.0-M11 ? I looked at the jenkins job and I didn't see anything like this.

Simon