Change "stable" image name to "tip" (#10682)

Change stable image name to tip

Move testing changes to a different PR

Revert test branch change

Merge branch 'master' into sarahchen6/change-stable-name

Merge branch 'master' into sarahchen6/change-stable-name

Co-authored-by: sarah.chen <sarah.chen@datadoghq.com>

Author: sarahchen6

.gitlab-ci.yml

@@ -31,7 +31,7 @@ variables:
   GRADLE_PLUGIN_PROXY: "https://depot-read-api-java.us1.ddbuild.io/magicmirror/magicmirror/@current/"
   BUILDER_IMAGE_VERSION_PREFIX: "v26.02-" # use either an empty string (e.g. "") for latest images or a version followed by a hyphen (e.g. "v25.05-")
   REPO_NOTIFICATION_CHANNEL: "#apm-java-escalations"
-  DEFAULT_TEST_JVMS: /^(8|11|17|21|25|stable)$/ # the latest "stable" version is 26
+  DEFAULT_TEST_JVMS: /^(8|11|17|21|25|tip)$/ # the latest "tip" version is 26
   PROFILE_TESTS:
     description: "Enable profiling of tests"
     value: "false"
@@ -69,7 +69,7 @@ workflow:
       - "ibm8"
       - "zulu11"
       - "semeru17"
-      - "stable"
+      - "tip"
     CI_SPLIT: ["1/1"]
 
 # Gitlab doesn't support "parallel" and "parallel:matrix" at the same time
@@ -696,7 +696,7 @@ test_inst_latest:
     CACHE_TYPE: "latestdep"
   parallel:
     matrix:
-      - testJvm: ["8", "17", "21", "25"] # the latest "stable" version is LTS v25
+      - testJvm: ["8", "17", "21", "25"] # the latest "tip" version is LTS v25
         # Gitlab doesn't support "parallel" and "parallel:matrix" at the same time
         # This emulates "parallel" by including it in the matrix
         CI_SPLIT: [ "1/6", "2/6", "3/6", "4/6", "5/6", "6/6"]
@@ -748,7 +748,7 @@ test_debugger:
   variables:
     GRADLE_TARGET: ":debuggerTest"
     CACHE_TYPE: "base"
-    DEFAULT_TEST_JVMS: /^(8|11|17|21|25|semeru8)$/ # the latest "stable" version is LTS v25
+    DEFAULT_TEST_JVMS: /^(8|11|17|21|25|semeru8)$/ # the latest "tip" version is LTS v25
   parallel:
     matrix: *test_matrix
 

buildSrc/src/main/kotlin/datadog/gradle/plugin/testJvmConstraints/TestJvmSpec.kt

@@ -46,16 +46,15 @@ class TestJvmSpec(val project: Project) {
   val testJvmProperty: Provider<String> = project.providers.gradleProperty(TEST_JVM)
 
   /**
-   * Normalized `stable` string to the highest JAVA_X_HOME found in environment variables.
+   * Normalized `tip` string that's set to the highest JAVA_X_HOME version found in environment variables.
    */
   val normalizedTestJvm: Provider<String> = testJvmProperty.map { testJvm ->
     if (testJvm.isBlank()) {
       throw GradleException("testJvm property is blank")
     }
 
-    // "stable" is calculated as the largest Java version found via toolchains or JAVA_X_HOME
     when (testJvm) {
-      "stable" -> {
+      "tip" -> {
         val javaVersions = discoverJavaVersionsViaToolchains()
           ?: discoverJavaVersionsViaEnvVars()