8262110: DST starts from incorrect time in 2038

[naotoj]

Please review the fix to the DST transition bug after the year 2037. The logic had the side effect that it adjusted the dst offset every time the method getOffsets() is issued. Only adjust the offset when issued with wall time.

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Progress

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

Issues

• JDK-8262110: DST starts from incorrect time in 2038
• JDK-8073446: TimeZone getOffset API does not return a dst offset between years 2038-2137

Reviewers

• Roger Riggs (@RogerRiggs - Reviewer)

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To checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk pull/3165/head:pull/3165
$ git checkout pull/3165

To update a local copy of the PR:
$ git checkout pull/3165
$ git pull https://git.openjdk.java.net/jdk pull/3165/head

[bridgekeeper]

👋 Welcome back naoto! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

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

• core-libs
• i18n

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[naotoj]

/issue add 8073446

[openjdk]

@naotoj
Adding additional issue to issue list: 8073446: TimeZone getOffset API does not return a dst offset between years 2038-2137.

[mlbridge]

Webrevs

• 00: Full (dab3e0f)

[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:

8262110: DST starts from incorrect time in 2038
8073446: TimeZone getOffset API does not  return a dst offset between years 2038-2137

Reviewed-by: rriggs

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 112 new commits pushed to the master branch:

• b8122d6: 8264220: jdk/javadoc/doclet/testRelatedPackages/TestRelatedPackages.java fails to compile
• 507b690: 8264126: Remove TRAPS/THREAD parameter for class loading functions
• f3eed05: 8263928: Add JAWT test files for mac
• 4fbb7c2: 8263472: Specification of JComponent::updateUI should document that the default implementation does nothing
• e47dfb8: 8264062: Use the blessed modifier order in jdk.jfr
• 5a930c4: 8264135: UnsafeGetStableArrayElement should account for different JIT implementation details
• bb354b9: 8264166: OopStorage should support specifying MEMFLAGS for allocations
• 41657b1: 8261551: Remove special CDS handling in Metaspace::allocate
• fe8ef32: 8264151: ciMethod::ensure_method_data() should return false is loading resulted in empty state
• 4e708e5: 8260862: JFR: New configure command for the jfr tool
• ... and 102 more: https://git.openjdk.java.net/jdk/compare/96e5c3f1e0c0cfc9bbc77a357bdf3d169100c07e...master

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]

@naotoj Since your change was applied there have been 116 commits pushed to the master branch:

• 3a28dc8: 8264178: Unused method Threads::nmethods_do
• 33c94ff: 8263376: CTW (Shenandoah): assert(mems <= 1) failed: No node right after call if multiple mem projections
• 4e74de4: 8264111: (fs) Leaking NativeBuffers in case of errors during UnixUserDefinedFileAttributeView.read/write
• 57115fa: 8189198: Add "forRemoval = true" to Applet API deprecations
• b8122d6: 8264220: jdk/javadoc/doclet/testRelatedPackages/TestRelatedPackages.java fails to compile
• 507b690: 8264126: Remove TRAPS/THREAD parameter for class loading functions
• f3eed05: 8263928: Add JAWT test files for mac
• 4fbb7c2: 8263472: Specification of JComponent::updateUI should document that the default implementation does nothing
• e47dfb8: 8264062: Use the blessed modifier order in jdk.jfr
• 5a930c4: 8264135: UnsafeGetStableArrayElement should account for different JIT implementation details
• ... and 106 more: https://git.openjdk.java.net/jdk/compare/96e5c3f1e0c0cfc9bbc77a357bdf3d169100c07e...master

Your commit was automatically rebased without conflicts.

Pushed as commit 7284f01.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.