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archiver-appliance / epicsarchiverap

This is an implementation of an archiver for EPICS control systems that aims to archive millions of PVs.
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Support for Java 12/Tomcat 9 etc #82

Closed slacmshankar closed 2 years ago

slacmshankar commented 5 years ago

Upgrade the system requirements to more recent versions of the JDK/Tomcat/other libs. This may require folks to upgrade their JDK/Tomcat and may not be backwards compatible (in terms of system requirements).

Please leave comments on this issue if you feel strongly about this upgrade.

slacmshankar commented 5 years ago

Migrated the source to be compatible with Java 12. Needed some work on the JavaDoc as the Taglet API has changed significantly. Tested with Tomcat 7.0.94; Tomcat 7.0.94 seems to come up with Java 12. Note that older version of Tomcat 7 use an endorsed dirs command line argument that has been deprecated. So the JVM won't start up with the Tomcat 7 releases.

slacmshankar commented 5 years ago

Am able to bring up the archiver on Tomcat 9 as well. Needed to change the connection pool settings to cater to DBCP2 but very small number of changes. Tested using mysql-connector-java-5.1.47.jar.

pklaus commented 4 years ago

I guess this can be closed as the JDK 12/Tomcat 9 release was published on Nov 14 2019.

beenje commented 3 years ago

Hello! Is there any specific reason Java 12 was targeted? And not 11? The current LTS version is 11 . Other versions only have 6 months availability. Java 12 end of availability was Sept 2019. See https://adoptopenjdk.net/support.html

The latest archiver appliance specifies jdk 12+. Is it really incompatible with jdk 11 (LTS)?

slacmshankar commented 2 years ago

We've moved on to JDK 16. I think JDK 12 was targeted mostly because it was the latest at that time. The main transition was beyond JDK 9+ as that's when all of the module changes happened and also Tomcat 9+ with its support system.