Add JDK 26-EA testing to CI (#9996)

* Add Java 26 to CI as non-default JVM

* Add EA workarounds

* Update gradle compatibility check

* Skip maven smoke tests

* Use @EnabledForJreRange instead of workaround

* Oops use annotation correctly now

Author: sarahchen6

.gitlab-ci.yml

@@ -61,6 +61,7 @@ workflow:
       - "17"
       - "21"
       - "25"
+      - "26"
       - "semeru11"
       - "oracle8"
       - "zulu8"

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

@@ -56,7 +56,7 @@ class TestJvmSpec(val project: Project) {
       "stable" -> {
         val javaVersions = project.providers.environmentVariablesPrefixedBy("JAVA_").map { javaHomes ->
           javaHomes
-            .filter { it.key.matches(Regex("^JAVA_[0-9]+_HOME$")) }
+            .filter { it.key.matches(Regex("^JAVA_[0-9]+_HOME$")) && it.key != "JAVA_26_HOME" } // JDK 26 is EA
             .map { Regex("^JAVA_(\\d+)_HOME$").find(it.key)!!.groupValues[1].toInt() }
         }.get()
 

dd-java-agent/agent-debugger/src/test/java/com/datadog/debugger/agent/CapturedSnapshotTest.java

@@ -642,6 +642,8 @@ public void sourceFileProbeGroovy() throws IOException, URISyntaxException {
   }
 
   @Test
+  @EnabledForJreRange(
+      max = JRE.JAVA_25) // TODO: Fix for Java 26. Delete once Java 26 is officially released.
   @DisabledIf(
       value = "datadog.environment.JavaVirtualMachine#isJ9",
       disabledReason = "Issue with J9 when compiling Kotlin code")
@@ -674,6 +676,8 @@ public void sourceFileProbeKotlin() throws IOException, URISyntaxException {
   }
 
   @Test
+  @EnabledForJreRange(
+      max = JRE.JAVA_25) // TODO: Fix for Java 26. Delete once Java 26 is officially released.
   @DisabledIf(
       value = "datadog.environment.JavaVirtualMachine#isJ9",
       disabledReason = "Issue with J9 when compiling Kotlin code")
@@ -701,6 +705,8 @@ public void suspendKotlin() throws IOException, URISyntaxException {
   }
 
   @Test
+  @EnabledForJreRange(
+      max = JRE.JAVA_25) // TODO: Fix for Java 26. Delete once Java 26 is officially released.
   @DisabledIf(
       value = "datadog.environment.JavaVirtualMachine#isJ9",
       disabledReason = "Issue with J9 when compiling Kotlin code")
@@ -734,6 +740,8 @@ public void suspendMethodKotlin() {
   }
 
   @Test
+  @EnabledForJreRange(
+      max = JRE.JAVA_25) // TODO: Fix for Java 26. Delete once Java 26 is officially released.
   @DisabledIf(
       value = "datadog.environment.JavaVirtualMachine#isJ9",
       disabledReason = "Issue with J9 when compiling Kotlin code")

dd-smoke-tests/gradle/src/test/groovy/datadog/smoketest/AbstractGradleTest.groovy

@@ -93,7 +93,11 @@ class AbstractGradleTest extends CiVisibilitySmokeTest {
 
   private static boolean isSupported(ComparableVersion gradleVersion) {
     // https://docs.gradle.org/current/userguide/compatibility.html
-    if (Jvm.current.isJavaVersionCompatible(25)) {
+    if (Jvm.current.isJavaVersionCompatible(26)) {
+      // TODO: Fix for Java 26. Check compatibility doc / issue to confirm the minimum version.
+      // https://github.com/gradle/gradle/issues/35406
+      return gradleVersion.compareTo(new ComparableVersion("9.4")) >= 0
+    } else if (Jvm.current.isJavaVersionCompatible(25)) {
       return gradleVersion.compareTo(new ComparableVersion("9.1")) >= 0
     } else if (Jvm.current.isJavaVersionCompatible(24)) {
       return gradleVersion.compareTo(new ComparableVersion("8.14")) >= 0

dd-smoke-tests/maven/src/test/groovy/datadog/smoketest/MavenSmokeTest.groovy

@@ -1,5 +1,6 @@
 package datadog.smoketest
 
+import datadog.environment.JavaVirtualMachine
 import datadog.trace.api.civisibility.CIConstants
 import datadog.trace.api.config.CiVisibilityConfig
 import datadog.trace.api.config.GeneralConfig
@@ -13,6 +14,7 @@ import org.slf4j.LoggerFactory
 import org.w3c.dom.Document
 import org.w3c.dom.NodeList
 import spock.lang.AutoCleanup
+import spock.lang.IgnoreIf
 import spock.lang.Shared
 import spock.lang.TempDir
 import spock.util.environment.Jvm
@@ -30,6 +32,9 @@ import java.util.concurrent.TimeoutException
 
 import static org.junit.jupiter.api.Assumptions.assumeTrue
 
+@IgnoreIf(reason = "TODO: Fix for Java 26. Maven compiler fails to compile the tests for Java 26-ea.", value = {
+  JavaVirtualMachine.isJavaVersionAtLeast(26)
+})
 class MavenSmokeTest extends CiVisibilitySmokeTest {
 
   private static final Logger LOGGER = LoggerFactory.getLogger(MavenSmokeTest)