Fix Gradle 9 idiomaticity and consistency issues

- Add javaLauncher workaround for Test tasks (musl compatibility)
- Fix configurations to be resolvable-only (Gradle 9 requirement)
- Upgrade plugins: ben-manes.versions 0.51.0, download 5.6.0
- Use lazy configuration for Javadoc tasks
- Fix eager task resolution in publishing assertions

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: jbachorik

build-logic/conventions/src/main/kotlin/com/datadoghq/profiler/ProfilerTestPlugin.kt

@@ -61,11 +61,11 @@ class ProfilerTestPlugin : Plugin<Project> {
         // Create base configurations eagerly so they can be extended by build scripts
         // without needing afterEvaluate
         project.configurations.maybeCreate("testCommon").apply {
-            isCanBeConsumed = true
+            isCanBeConsumed = false
             isCanBeResolved = true
         }
         project.configurations.maybeCreate("mainCommon").apply {
-            isCanBeConsumed = true
+            isCanBeConsumed = false
             isCanBeResolved = true
         }
 
@@ -93,7 +93,12 @@ class ProfilerTestPlugin : Plugin<Project> {
         // Use JUnit Platform
         task.useJUnitPlatform()
 
-        // Configure Java executable - use centralized utility for JAVA_TEST_HOME/JAVA_HOME resolution
+        // Disable Gradle 9 toolchain probing (fails on musl with glibc probe binary)
+        // Use explicit executable path instead
+        @Suppress("NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS")
+        task.javaLauncher.convention(null as org.gradle.jvm.toolchain.JavaLauncher?)
+        @Suppress("NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS")
+        task.javaLauncher.value(null as org.gradle.jvm.toolchain.JavaLauncher?)
         task.setExecutable(PlatformUtils.testJavaExecutable())
 
         // Standard environment variables
@@ -183,7 +188,7 @@ class ProfilerTestPlugin : Plugin<Project> {
 
             // Create test configuration
             val testCfg = project.configurations.maybeCreate("test${configName.replaceFirstChar { it.uppercaseChar() }}Implementation").apply {
-                isCanBeConsumed = true
+                isCanBeConsumed = false
                 isCanBeResolved = true
                 extendsFrom(testCommon)
             }
@@ -223,7 +228,7 @@ class ProfilerTestPlugin : Plugin<Project> {
             if (configName in applicationConfigs && appMainClass.isNotEmpty()) {
                 // Create main configuration
                 val mainCfg = project.configurations.maybeCreate("${configName}Implementation").apply {
-                    isCanBeConsumed = true
+                    isCanBeConsumed = false
                     isCanBeResolved = true
                     extendsFrom(mainCommon)
                 }

ddprof-lib/build.gradle.kts

@@ -7,8 +7,8 @@ plugins {
   java
   `maven-publish`
   signing
-  id("com.github.ben-manes.versions") version "0.27.0"
-  id("de.undercouch.download") version "4.1.1"
+  id("com.github.ben-manes.versions") version "0.51.0"
+  id("de.undercouch.download") version "5.6.0"
   id("com.datadoghq.native-build")
   id("com.datadoghq.gtest")
   id("com.datadoghq.scanbuild")
@@ -174,7 +174,7 @@ val sourcesJar by tasks.registering(Jar::class) {
 }
 
 // Javadoc configuration
-tasks.withType<Javadoc> {
+tasks.withType<Javadoc>().configureEach {
   // Allow javadoc to access internal sun.nio.ch package used by BufferWriter8
   (options as StandardJavadocDocletOptions).addStringOption("-add-exports", "java.base/sun.nio.ch=ALL-UNNAMED")
 }
@@ -252,7 +252,7 @@ tasks.withType<Sign>().configureEach {
 
 // Publication assertions
 gradle.taskGraph.whenReady {
-  if (hasTask(tasks.named("publish").get()) || hasTask(":publishToSonatype")) {
+  if (hasTask(":ddprof-lib:publish") || hasTask(":publishToSonatype")) {
     check(project.findProperty("removeJarVersionNumbers") != true) {
       "Cannot publish with removeJarVersionNumbers=true"
     }