[ZEPPELIN-6011] fix Dockerfile JAVA_HOME to openjdk11

[flowy0]

What is this PR for?

To fix the Dockerfile for Zeppelin Server for branch-0.11. The JAVA_HOME variable was set to Java 8, while openjdk11 is being installed.
This issue is already fixed in the master branch.

What type of PR is it?

Bug Fix

Please leave your type of PR only

Todos

• - Fix JAVA_HOME variable in scripts/docker/zeppelin-server/Dockerfile

What is the Jira issue?

• ZEPPELIN-6011

How should this be tested?

• Strongly recommended: add automated unit tests for any new or changed behavior
• Outline any manual steps to test the PR here
  • Not too sure how to automate this testing as i'm new at this.

Screenshots (if appropriate)

Questions:

• Does the license files need to update?
• Is there breaking changes for older versions?
• Does this needs documentation?

[jongyoul]

Helo, thank you for the contribution. Could you please make the same one for master branch?

[Reamer]

Helo, thank you for the contribution. Could you please make the same one for master branch?

Already fixed in master 0f366d8

[jongyoul]

Wow! I was in a different place of

zeppelin/scripts/docker/zeppelin/bin/Dockerfile

Line 27 in fa6e3ee

JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64 \

Could you please fix the line as well?

[jongyoul]

FYI,

https://github.com/search?q=repo%3Aapache%2Fzeppelin%20JAVA_HOME&type=code

[flowy0]

Wow! I was in a different place of

zeppelin/scripts/docker/zeppelin/bin/Dockerfile

Line 27 in fa6e3ee

JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64 \

Could you please fix the line as well?

Seems like this file is installing and using JDK8?

[jongyoul]

Yes, this also should use java 11

[flowy0]

Yes, this also should use java 11

Alright, I'll create another PR then.