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graalvm-community: float latest to its own newest GA release

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GraalVM Community publishes its releases on GitHub, so the `latest`
alias now matches against that real release list using the SemVer
wildcard instead of asking the Adoptium API for the newest GA major.
This prevents `latest` from hard-failing when GraalVM lags behind a
freshly released Java major (e.g. Adoptium reports 26 before GraalVM
ships it). Oracle GraalVM has no listing endpoint, so it keeps deriving
the newest major from Adoptium and errors clearly if that major is not
yet published.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
This commit is contained in:
Bruno Borges
2026-07-09 15:44:30 -04:00
parent 7155e1ca90
commit 94eba1b8f5
4 changed files with 93 additions and 14 deletions
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README.md
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@@ -111,7 +111,8 @@ The `java-version` input supports an exact version or a version range using [Sem
> - `latest` always resolves the newest version from the distribution's remote metadata (it behaves like `check-latest: true`), so it ignores any older version already present in the runner tool cache. This has the same performance trade-off described in [Check latest](#check-latest).
> - `latest` is only supported through the `java-version` input, not through `java-version-file`, and it resolves stable (GA) releases only — it cannot be combined with `-ea`.
> - The `jdkfile` distribution does not support `latest`, as it installs from a local file.
> - For `oracle` and `graalvm`, `latest` only uses the Adoptium API to determine the newest GA **major version number** — the JDK binary itself is still downloaded from the Oracle / GraalVM servers for that major. If those servers haven't published the resolved major yet, the action fails and asks you to specify a concrete version. Note the Oracle JDK license caveat below still applies to a floating `latest`.
> - For `oracle` and `graalvm` (Oracle GraalVM), `latest` uses the Adoptium API only to determine the newest GA **major version number** — the JDK binary itself is still downloaded from the Oracle / GraalVM servers for that major. Because these distributions have no endpoint to list their own releases, if their servers haven't published the resolved major yet, the action fails and asks you to specify a concrete version. Note the Oracle JDK license caveat below still applies to a floating `latest`.
> - For `graalvm-community`, `latest` floats to the newest GA release published on GitHub, so it never depends on the Adoptium API and always resolves to the newest major that GraalVM Community actually ships.
#### Supported distributions
Currently, the following distributions are supported: