8240542: Switch FX build to use JDK 14 as boot JDK

[kevinrushforth]

Now that we have switched to using gradle 6.3 we can switch to using JDK 14 as the boot JDK for JavaFX 15 builds.

This will not change the minimum JDK version needed to build or run JavaFX, which remains at 11. We will continue to generate class files using -source 11 -target 11.

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Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed

Issue

• JDK-8240542: Switch FX build to use JDK 14 as boot JDK

Reviewers

• Johan Vos (jvos - Reviewer)
• Ambarish Rapte (arapte - Reviewer)

Download

$ git fetch https://git.openjdk.java.net/jfx pull/152/head:pull/152
$ git checkout pull/152

[bridgekeeper]

👋 Welcome back kcr! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request.

[kevinrushforth]

/reviewers 2

[openjdk]

@kevinrushforth
The number of required reviews for this PR is now set to 2 (with at least 1 of role reviewers).

[kevinrushforth]

@arapte can you also review this?

[mlbridge]

Webrevs

• 00: Full (9774559)

[kevinrushforth]

@tiainen can you also take a look?

[tiainen]

Looks ok to me. All our jenkins jobs ran successfully using JDK 14.

[nlisker]

We will continue to generate class files using -source 11 -target 11

Isn't -release 11 the preferred way?

[kevinrushforth]

gradle's java plugin translates sourceCompatibility NN into -source NN -target NN. I haven't looked into whether gradle has a way to use -release. In practice, what it means is that we need to be careful not to use newer API from a newer JDK.

We could look into changing it if gradle provides that support, but that would be a separate issue, independent from upgrading the boot JDK from 13 to 14.

[openjdk]

@kevinrushforth This change now passes all automated pre-integration checks. When the change also fulfills all project specific requirements, type /integrate in a new comment to proceed. After integration, the commit message will be:

8240542: Switch FX build to use JDK 14 as boot JDK

Reviewed-by: jvos, arapte

• If you would like to add a summary, use the /summary command.
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• To add additional solved issues, use the /solves command.

Since the source branch of this PR was last updated there have been 3 commits pushed to the master branch. Since there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid automatic rebasing, please merge master into your branch, and then specify the current head hash when integrating, like this: /integrate 159f6516879ca1d176223b2e28ee19a0ad1e3e19.

➡️ To integrate this PR with the above commit message, type /integrate in a new comment.

[kevinrushforth]

/integrate

[openjdk]

@kevinrushforth The following commits have been pushed to master since your change was applied:

• 6d098fe: 8234959: FXMLLoader does not populate ENGINE_SCOPE Bindings with FILENAME and ARGV
• d7f13f4: 8089828: RTL Orientation, the flag of a mnemonic is not placed under the mnemonic letter.

Your commit was automatically rebased without conflicts.

Pushed as commit 159f651.