8274864: Remove Amman/Cairo hacks in ZoneInfoFile

[naotoj]

While working on tzdata2021c update, I noticed there is a dead code in sun.util.calendar.ZoneInfoFile, which was used to tweak the rules for endOfDay for certain cases. These are no longer needed as JDK's code is already capable of dealing with transitions beyond the end of the day.

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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-8274864: Remove Amman/Cairo hacks in ZoneInfoFile

Reviewers

• Iris Clark (@irisclark - Reviewer)
• Joe Wang (@JoeWang-Java - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk pull/5857/head:pull/5857
$ git checkout pull/5857

Update a local copy of the PR:
$ git checkout pull/5857
$ git pull https://git.openjdk.java.net/jdk pull/5857/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 5857

View PR using the GUI difftool:
$ git pr show -t 5857

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk/pull/5857.diff

[bridgekeeper]

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[openjdk]

@naotoj The following labels will be automatically applied to this pull request:

• core-libs
• i18n

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[mlbridge]

Webrevs

• 00: Full (95568dfa)

[openjdk]

@naotoj 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:

8274864: Remove Amman/Cairo hacks in ZoneInfoFile

Reviewed-by: iris, joehw

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 2 new commits pushed to the master branch:

• 97ea9dd: 8274840: Update OS detection code to recognize Windows 11
• 8de7763: 8273152: Refactor CDS FileMapHeader loading code

Please see this link for an up-to-date comparison between the source branch of this pull request and the master branch.
As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

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

[naotoj]

/integrate

[openjdk]

Going to push as commit ec19907.
Since your change was applied there have been 7 commits pushed to the master branch:

• ccbce10: 8272756: Remove unnecessary explicit initialization of volatile variables in java.desktop
• 36b89a1: 8274785: ciReplay: Potential crash due to uninitialized Compile::_ilt variable
• 2aacd42: 8274145: C2: condition incorrectly made redundant with dominating main loop exit condition
• 6364719: 8274004: Change 'nonleaf' rank name
• b60837a: 8272586: emit abstract machine code in hs-err logs
• 97ea9dd: 8274840: Update OS detection code to recognize Windows 11
• 8de7763: 8273152: Refactor CDS FileMapHeader loading code

Your commit was automatically rebased without conflicts.

[openjdk]

@naotoj Pushed as commit ec19907.

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