Update METviewer to run with Java 11 and a newer version of Tomcat

[jprestop]

Describe the Task

Update METviewer to run with Java 11 and a newer version of Tomcat. From Tatiana: This work will require a sysadmin's help with updating mohawk, dakota, and AWS. It is unlikely that the code will need a lot of updates due to these changes.

This arose from an update to mohawk (below is from Tatiana in an email with the subject "mohawk reboot today?" on April 3, 2024:

The default Java version was changed on mohawk after the reboot from Java 8 to Java 11
vxwww@mohawk:/opt/vxwww/tomcat$ java -version
openjdk version "11.0.22" 2024-01-16
All our apps are still using Java 8
Could you please revert the Java version to 8.

From Tatiana, here are the compatible Tomcat versions with Java 11:

Tomcat 9.0.x and 10.1.x work with Java 11:
https://tomcat.apache.org/whichversion.html
ATEC project uses Tomcat 9.0.80.
I would start testing with the latest version of Tomcat - currently it is 9.0.89 - and require 9.0.x

.

Time Estimate

The developer should estimate this time.

Sub-Issues

Consider breaking the task down into sub-issues.

• Use a Docker base image: dtcenter/metviewer-base that will be created by another issue (Generate a Docker image with Tomcat 9.0 #534)
• Use Java 11.x with Tomcat 9.0.89 (Tomcat 9.0.89 should already be in the base image from work on issue Generate a Docker image with Tomcat 9.0 #534)
• Determine if a further Tomcat upgrade is needed

Beta5

Funding Source

Check in with Tara

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Define Related Issue(s)

Consider the impact to the other METplus components.

• METplus, MET, METdataio, METviewer, METexpress, METcalcpy, METplotpy

Task Checklist

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• Complete the issue definition above, including the Time Estimate and Funding Source.
• Fork this repository or create a branch of develop.
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