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feat: Add set-default option (#1017)

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* Add set-default option

This option allows to install an additional JDK without making it the
default one.

I have wanted this for quite a long time as I'm running custom GitHub
Actions with Java, which might require a specific JDK and I don't want
to pollute the JDK that is used by the overall workflow calling the
action.
And I'm apparently not alone as there was a preexisting issue.

Fixes #560

* Dedupe setJavaDefault and document multi-version/toolchain behavior

- Refactor setJavaDefault to delegate shared output/env logic to
  setJavaEnvironment, avoiding duplication between the two.
- Document that set-default applies to all JDKs in a multiline
  java-version, and that installed JDKs remain registered in Maven
  toolchains regardless of set-default.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* test: fix Prettier formatting in base-installer test

Resolves the failing 'Basic validation / build' format-check on
__tests__/distributors/base-installer.test.ts (line exceeded print width).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Bruno Borges <brborges@microsoft.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
This commit is contained in:
Guillaume Smet
2026-07-07 18:38:57 +02:00
committed by GitHub
parent a50fdccef1
commit 6657b99340
12 changed files with 280 additions and 14 deletions
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src/constants.ts
+1
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@@ -6,6 +6,7 @@ export const INPUT_JAVA_PACKAGE = 'java-package';
export const INPUT_DISTRIBUTION = 'distribution';
export const INPUT_JDK_FILE = 'jdkFile';
export const INPUT_CHECK_LATEST = 'check-latest';
export const INPUT_SET_DEFAULT = 'set-default';
export const INPUT_VERIFY_SIGNATURE = 'verify-signature';
export const INPUT_VERIFY_SIGNATURE_PUBLIC_KEY = 'verify-signature-public-key';
export const INPUT_SERVER_ID = 'server-id';