Add available_ea_releases to /v3/info/available_releases response

[Copilot]

available_releases only lists versions with GA releases, leaving EA-only versions (e.g. in-development JDK tip version) undiscoverable via the API — even though EA release data is stored and queryable.

Changes

• ReleaseInfo — New available_ea_releases: Array<Int> field listing all major versions with at least one EA release, with OpenAPI schema annotation. Defaults to emptyArray() for backward compatibility.
• ReleaseVersionResolver — Computes available_ea_releases alongside existing fields. Refactored to materialize allReleases once as a List (avoiding single-use Sequence re-traversal) and removed redundant .asSequence() calls on already-list-backed collections.
• APIDataStoreImpl — loadDataFromDb() now unions available_ea_releases into the version scan list, so EA-only versions are loaded on startup rather than relying solely on the +5 heuristic.
• Tests — Updated ApiDataStoreStub and added availableEaReleasesIsCorrect to ReleaseVersionResolverTest.

Example response

{
  "available_releases": [8, 11, 17, 21, 23],
  "available_lts_releases": [8, 11, 17, 21],
  "available_ea_releases": [8, 11, 17, 21, 23, 25],
  "most_recent_lts": 21,
  "most_recent_feature_release": 23,
  "most_recent_feature_version": 25,
  "tip_version": 25
}

Clients can now discover EA-only versions and query them via /v3/assets/feature_releases/{version}/ea.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• fastdl.mongodb.org
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java -javaagent:/home/REDACTED/.m2/repository/org/jacoco/org.jacoco.agent/0.8.14/org.jacoco.agent-0.8.14-runtime.jar=destfile=/home/REDACTED/work/api.adoptium.net/api.adoptium.net/adoptium-updater-parent/adoptium-api-v3-updater/target/jacoco.exec --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-exports=java.base/jdk.internal.module=ALL-UNNAMED -Dquarkus-internal-test.serialized-app-model.path=/home/REDACTED/work/api.adoptium.net/api.adoptium.net/adoptium-updater-parent/adoptium-api-v3-updater/target/quarkus/bootstrap/test-app-model.dat -jar /home/REDACTED/work/api.adoptium.net/api.adoptium.net/adoptium-updater-parent/adoptium-api-v3-updater/target/surefire/surefirebooter-20260502015225480_3.jar /home/REDACTED/work/api.adoptium.net/api.adoptium.net/adoptium-updater-parent/adoptium-api-v3-updater/target/surefire 2026-05-02T01-52-25_326-jvmRun1 surefire-20260502015225480_1tmp surefire_0-20260502015225480_2tmp (dns block)
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java -javaagent:/home/REDACTED/.m2/repository/org/jacoco/org.jacoco.agent/0.8.14/org.jacoco.agent-0.8.14-runtime.jar=destfile=/home/REDACTED/work/api.adoptium.net/api.adoptium.net/adoptium-updater-parent/adoptium-api-v3-updater/target/jacoco.exec --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-exports=java.base/jdk.internal.module=ALL-UNNAMED -Dquarkus-internal-test.serialized-app-model.path=/home/REDACTED/work/api.adoptium.net/api.adoptium.net/adoptium-updater-parent/adoptium-api-v3-updater/target/quarkus/bootstrap/test-app-model.dat -jar /home/REDACTED/work/api.adoptium.net/api.adoptium.net/adoptium-updater-parent/adoptium-api-v3-updater/target/surefire/surefirebooter-20260502015320078_3.jar /home/REDACTED/work/api.adoptium.net/api.adoptium.net/adoptium-updater-parent/adoptium-api-v3-updater/target/surefire 2026-05-02T01-53-20_011-jvmRun1 surefire-20260502015320078_1tmp surefire_0-20260502015320078_2tmp (dns block)
• repo.gradle.org
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --enable-native-access=ALL-UNNAMED -classpath /home/REDACTED/.m2/wrapper/dists/apache-maven-3.9.15/9925cc1d/boot/plexus-classworlds-2.9.0.jar -Dclassworlds.conf=/home/REDACTED/.m2/wrapper/dists/apache-maven-3.9.15/9925cc1d/bin/m2.conf -Dmaven.home=/home/REDACTED/.m2/wrapper/dists/apache-maven-3.9.15/9925cc1d -Dlibrary.jansi.path=/home/REDACTED/.m2/wrapper/dists/apache-maven-3.9.15/9925cc1d/lib/jansi-native -Dmaven.multiModuleProjectDirectory=/home/REDACTED/work/api.adoptium.net/api.adoptium.net org.codehaus.plexus.classworlds.launcher.Launcher test -pl adoptium-updater-parent/adoptium-api-v3-updater -Dtest=ReleaseVersionResolverTest -q (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

[karianna]

@johnoliver Over to you for a human review, not sure if this is how you'd want to add the ability to list EA releases.

[johnoliver]

@karianna not sure its a feature I care too much about, nobody has asked for it I dont think

[karianna]

@johnoliver See request at #1931