diff --git a/build-logic/conventions/src/main/kotlin/dd-trace-java.conventions.testing.slf4j-simple.gradle.kts b/build-logic/conventions/src/main/kotlin/dd-trace-java.conventions.testing.slf4j-simple.gradle.kts
new file mode 100644
index 00000000000..efe41506de5
--- /dev/null
+++ b/build-logic/conventions/src/main/kotlin/dd-trace-java.conventions.testing.slf4j-simple.gradle.kts
@@ -0,0 +1,29 @@
+import org.gradle.api.artifacts.VersionCatalogsExtension
+import org.gradle.api.tasks.testing.Test
+import org.gradle.kotlin.dsl.getByType
+
+val libs = extensions.getByType<VersionCatalogsExtension>().named("libs")
+val slf4jVersion = libs.findVersion("slf4j").get().requiredVersion
+val slf4jSimple = "org.slf4j:slf4j-simple:$slf4jVersion"
+val projectDependencies = dependencies
+
+configurations.configureEach {
+  if (name.contains("test", ignoreCase = true)) {
+    if (name.endsWith("runtimeClasspath", ignoreCase = true)) {
+      exclude(group = "ch.qos.logback")
+    }
+
+    if (name.endsWith("runtimeOnly", ignoreCase = true)) {
+      projectDependencies.add(name, slf4jSimple)
+    }
+  }
+}
+
+tasks.withType<Test>().configureEach {
+  jvmArgs(
+    "-Dorg.slf4j.simpleLogger.defaultLogLevel=debug",
+    "-Dorg.slf4j.simpleLogger.showThreadName=true",
+    "-Dorg.slf4j.simpleLogger.showDateTime=true",
+    "-Dorg.slf4j.simpleLogger.dateTimeFormat=HH:mm:ss.SSS",
+  )
+}
diff --git a/dd-java-agent/instrumentation/java/java-concurrent/java-concurrent-21.0/build.gradle b/dd-java-agent/instrumentation/java/java-concurrent/java-concurrent-21.0/build.gradle
index 243a1fe6ef6..c155a3fdabd 100644
--- a/dd-java-agent/instrumentation/java/java-concurrent/java-concurrent-21.0/build.gradle
+++ b/dd-java-agent/instrumentation/java/java-concurrent/java-concurrent-21.0/build.gradle
@@ -1,11 +1,10 @@
 plugins {
   id 'idea'
   id 'dd-trace-java.module.instrumentation'
+  // Use slf4j-simple as default; logback has a high chance of getting stuck in a deadlock on CI.
+  id 'dd-trace-java.conventions.testing.slf4j-simple'
 }
 
-// Use slf4j-simple as default; logback has a high chance of getting stuck in a deadlock on CI.
-apply from: "$rootDir/gradle/slf4j-simple.gradle"
-
 testJvmConstraints {
   minJavaVersion = JavaVersion.VERSION_21
 }
diff --git a/dd-java-agent/instrumentation/java/java-concurrent/java-concurrent-25.0/build.gradle b/dd-java-agent/instrumentation/java/java-concurrent/java-concurrent-25.0/build.gradle
index 8c91a4851f8..68f55deae88 100644
--- a/dd-java-agent/instrumentation/java/java-concurrent/java-concurrent-25.0/build.gradle
+++ b/dd-java-agent/instrumentation/java/java-concurrent/java-concurrent-25.0/build.gradle
@@ -1,11 +1,10 @@
 plugins {
   id 'idea'
   id 'dd-trace-java.module.instrumentation'
+  // Use slf4j-simple as default; logback has a high chance of getting stuck in a deadlock on CI.
+  id 'dd-trace-java.conventions.testing.slf4j-simple'
 }
 
-// Use slf4j-simple as default; logback has a high chance of getting stuck in a deadlock on CI.
-apply from: "$rootDir/gradle/slf4j-simple.gradle"
-
 muzzle {
   pass {
     coreJdk('25')
diff --git a/dd-java-agent/instrumentation/java/java-lang/java-lang-21.0/build.gradle b/dd-java-agent/instrumentation/java/java-lang/java-lang-21.0/build.gradle
index 53a46ed3706..2ca7778c773 100644
--- a/dd-java-agent/instrumentation/java/java-lang/java-lang-21.0/build.gradle
+++ b/dd-java-agent/instrumentation/java/java-lang/java-lang-21.0/build.gradle
@@ -1,11 +1,10 @@
 plugins {
   id 'idea'
   id 'dd-trace-java.module.instrumentation'
+  // Use slf4j-simple as default; logback has a high chance of getting stuck in a deadlock on CI.
+  id 'dd-trace-java.conventions.testing.slf4j-simple'
 }
 
-// Use slf4j-simple as default; logback has a high chance of getting stuck in a deadlock on CI.
-apply from: "$rootDir/gradle/slf4j-simple.gradle"
-
 testJvmConstraints {
   minJavaVersion = JavaVersion.VERSION_21
 }
diff --git a/dd-java-agent/instrumentation/java/java-lang/java-lang-22.0/build.gradle b/dd-java-agent/instrumentation/java/java-lang/java-lang-22.0/build.gradle
index 27633a5d8e1..0845fbd331b 100644
--- a/dd-java-agent/instrumentation/java/java-lang/java-lang-22.0/build.gradle
+++ b/dd-java-agent/instrumentation/java/java-lang/java-lang-22.0/build.gradle
@@ -1,6 +1,7 @@
 plugins {
   id 'idea'
   id 'dd-trace-java.module.instrumentation'
+  id 'dd-trace-java.conventions.testing.slf4j-simple'
 }
 
 muzzle {
@@ -9,8 +10,6 @@ muzzle {
   }
 }
 
-apply from: "$rootDir/gradle/slf4j-simple.gradle"
-
 tracerJava {
   addSourceSetFor(JavaVersion.VERSION_25)
 }
diff --git a/gradle/slf4j-simple.gradle b/gradle/slf4j-simple.gradle
deleted file mode 100644
index a83ef57a71a..00000000000
--- a/gradle/slf4j-simple.gradle
+++ /dev/null
@@ -1,27 +0,0 @@
-// Apply this script when `slf4j-simple` should be used instead of `logback`.
-
-configurations.configureEach { cfg ->
-  def name = cfg.name
-
-  if (name.containsIgnoreCase("test")) {
-    // Exclude Logback from all test-like runtimeClasspath configurations.
-    if (name.endsWithIgnoreCase("runtimeClasspath")) {
-      cfg.exclude group: "ch.qos.logback"
-    }
-
-    // Add slf4j-simple to all test-like runtimeOnly configurations.
-    if (name.endsWithIgnoreCase("runtimeOnly")) {
-      project.dependencies.add(name, "org.slf4j:slf4j-simple:${libs.versions.slf4j.get()}")
-    }
-  }
-}
-
-// Configure `slf4j-simple` logger.
-tasks.withType(Test).configureEach {
-  jvmArgs += [
-    "-Dorg.slf4j.simpleLogger.defaultLogLevel=debug",
-    "-Dorg.slf4j.simpleLogger.showThreadName=true",
-    "-Dorg.slf4j.simpleLogger.showDateTime=true",
-    "-Dorg.slf4j.simpleLogger.dateTimeFormat=HH:mm:ss.SSS"
-  ]
-}