7324: Update eclipse version and Min JDK required in Update Site landing pages

[guruhb]

With Eclipse 4.19 JMC can't be used with Boot JDK 8. Currently the Update sites landing page and README.txt had instruction on how JMC can be used with JDK8 (Which is not valid any more).

Updated instruction to use JMC with JDK 11 and above.

---

Progress

• Commit message must refer to an issue
• Change must be properly reviewed

Issue

• JMC-7324: Update eclipse version and Min JDK required in Update Site landing pages

Reviewers

• Marcus Hirt (@thegreystone - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jmc pull/278/head:pull/278
$ git checkout pull/278

Update a local copy of the PR:
$ git checkout pull/278
$ git pull https://git.openjdk.java.net/jmc pull/278/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 278

View PR using the GUI difftool:
$ git pr show -t 278

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jmc/pull/278.diff

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[mlbridge]

Webrevs

• 00: Full (33ef0a43)

[openjdk]

@guruhb This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

7324: Update eclipse version and Min JDK required in Update Site landing pages

Reviewed-by: hirt

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 1 new commit pushed to the master branch:

• 362414b: 7329: Exception while opening Method Profile page.

Please see this link for an up-to-date comparison between the source branch of this pull request and the master branch.
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[guruhb]

/integrate

[openjdk]

Going to push as commit 5a3e303.
Since your change was applied there has been 1 commit pushed to the master branch:

• 362414b: 7329: Exception while opening Method Profile page.

Your commit was automatically rebased without conflicts.

[openjdk]

@guruhb Pushed as commit 5a3e303.

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