fix: MuzzleVersionScanPlugin needs reflective access on ClassLoader (#10130)

bric3 · web-flow · commit ec287df49ffd · 2025-12-09T18:21:16.000Z
diff --git a/buildSrc/src/main/kotlin/datadog/gradle/plugin/muzzle/tasks/MuzzleTask.kt b/buildSrc/src/main/kotlin/datadog/gradle/plugin/muzzle/tasks/MuzzleTask.kt
@@ -98,6 +98,10 @@ abstract class MuzzleTask @Inject constructor(
       // See https://github.com/gradle/gradle/issues/33987
       workerExecutor.processIsolation {
         forkOptions {
+          // datadog.trace.agent.tooling.muzzle.MuzzleVersionScanPlugin needs reflective access to ClassLoader.findLoadedClass
+          if(javaLauncher.metadata.languageVersion > JavaLanguageVersion.of(9)) {
+            jvmArgs("--add-opens=java.base/java.lang=ALL-UNNAMED")
+          }
           executable(javaLauncher.executablePath)
         }
       }

Original file line number	Diff line number	Diff line change
`@@ -98,6 +98,10 @@ abstract class MuzzleTask @Inject constructor(`
`98`	`98`	`// See https://github.com/gradle/gradle/issues/33987`
`99`	`99`	`workerExecutor.processIsolation {`
`100`	`100`	`forkOptions {`
	`101`	`+ // datadog.trace.agent.tooling.muzzle.MuzzleVersionScanPlugin needs reflective access to ClassLoader.findLoadedClass`
	`102`	`+ if(javaLauncher.metadata.languageVersion > JavaLanguageVersion.of(9)) {`
	`103`	`+ jvmArgs("--add-opens=java.base/java.lang=ALL-UNNAMED")`
	`104`	`+ }`
`101`	`105`	`executable(javaLauncher.executablePath)`
`102`	`106`	`}`
`103`	`107`	`}`