8275745: Reproducible copyright headers

[andrew-m-leonard]

The copyright headers are generated at build time, and the year inserted in the template depends on the current date. This means the headers are not reproducible if the project is built a year later. This PR uses the year derived from the SOURCE_DATE_EPOCH environment variable to make the build reproducible (this variable is already used in other parts of the build).

---

Progress

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

Issue

• JDK-8275745: Reproducible copyright headers

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk17u-dev pull/206/head:pull/206
$ git checkout pull/206

Update a local copy of the PR:
$ git checkout pull/206
$ git pull https://git.openjdk.java.net/jdk17u-dev pull/206/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 206

View PR using the GUI difftool:
$ git pr show -t 206

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk17u-dev/pull/206.diff

[bridgekeeper]

👋 Welcome back aleonard! 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]

This backport pull request has now been updated with issue from the original commit.

[openjdk]

@andrew-m-leonard 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:

8275745: Reproducible copyright headers

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 6 new commits pushed to the master branch:

• a15455f: 8278948: compiler/vectorapi/reshape/TestVectorCastAVX1.java crashes in assembler
• eee17fb: 8265317: [vector] assert(payload->is_object()) failed: expected 'object' value for scalar-replaced boxed vector but got: NULL
• f820a3c: 8278966: two microbenchmarks tests fail "assert(!jvms->method()->has_exception_handlers()) failed: no exception handler expected" after JDK-8275638
• a8775f1: 8275638: GraphKit::combine_exception_states fails with "matching stack sizes" assert
• ff1ef50: 8273056: java.util.random does not correctly sample exponential or Gaussian distributions
• e2103de: 8276990: Memory leak in invoker.c fillInvokeRequest() during JDI operations

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.

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➡️ To flag this PR as ready for integration with the above commit message, type /integrate in a new comment. (Afterwards, your sponsor types /sponsor in a new comment to perform the integration).

[mlbridge]

Webrevs

• 00: Full (42d421c7)

[andrew-m-leonard]

/integrate

[openjdk]

@andrew-m-leonard
Your change (at version 42d421c) is now ready to be sponsored by a Committer.

[gnu-andrew]

Looks good. Thanks.

[gnu-andrew]

/sponsor

[openjdk]

Going to push as commit 0d933c9.
Since your change was applied there have been 9 commits pushed to the master branch:

• 673c585: 8279182: MakeZipReproducible ZipEntry timestamps not localized to UTC
• 11a5bbd: 8270468: TestRangeCheckEliminated fails because methods are not compiled
• a946f04: 8269129: Multiple tier1 tests in hotspot/jtreg/compiler are failing for client VMs
• a15455f: 8278948: compiler/vectorapi/reshape/TestVectorCastAVX1.java crashes in assembler
• eee17fb: 8265317: [vector] assert(payload->is_object()) failed: expected 'object' value for scalar-replaced boxed vector but got: NULL
• f820a3c: 8278966: two microbenchmarks tests fail "assert(!jvms->method()->has_exception_handlers()) failed: no exception handler expected" after JDK-8275638
• a8775f1: 8275638: GraphKit::combine_exception_states fails with "matching stack sizes" assert
• ff1ef50: 8273056: java.util.random does not correctly sample exponential or Gaussian distributions
• e2103de: 8276990: Memory leak in invoker.c fillInvokeRequest() during JDI operations

Your commit was automatically rebased without conflicts.

[openjdk]

@gnu-andrew @andrew-m-leonard Pushed as commit 0d933c9.

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

[andrew-m-leonard]

@gnu-andrew thank you Andrew