Apply JMH plugin explicitly when needed

api/build.gradle

@@ -1,3 +1,7 @@
+plugins {
+    id "me.champeau.gradle.jmh"
+}
+
 description = 'gRPC: API'
 
 dependencies {

benchmarks/build.gradle

@@ -2,6 +2,7 @@ plugins {
     id "application"
 
     id "com.google.protobuf"
+    id "me.champeau.gradle.jmh"
 }
 
 description = "grpc Benchmarks"

build.gradle

@@ -1,7 +1,6 @@
 plugins {
     id "com.google.osdetector" apply false
     id "me.champeau.gradle.japicmp" apply false
-    id "me.champeau.gradle.jmh" apply false
     id "net.ltgt.errorprone" apply false
     id "ru.vyarus.animalsniffer" apply false
 }
@@ -17,7 +16,6 @@ subprojects {
     apply plugin: "signing"
     apply plugin: "jacoco"
 
-    apply plugin: "me.champeau.gradle.jmh"
     apply plugin: "com.google.osdetector"
     // The plugin only has an effect if a signature is specified
     apply plugin: "ru.vyarus.animalsniffer"
@@ -53,11 +51,7 @@ subprojects {
         mavenLocal()
     }
 
-    [
-        compileJava,
-        compileTestJava,
-        compileJmhJava
-    ].each() {
+    tasks.withType(JavaCompile) {
         it.options.compilerArgs += [
             "-Xlint:all",
             "-Xlint:-options",
@@ -160,11 +154,7 @@ subprojects {
                 }
             }
 
-            [
-                compileJava,
-                compileTestJava,
-                compileJmhJava
-            ].each() {
+            tasks.withType(JavaCompile) {
                 // Protobuf-generated code produces some warnings.
                 // https://github.com/google/protobuf/issues/2718
                 it.options.compilerArgs += [
@@ -253,9 +243,6 @@ subprojects {
 
         // Configuration for modules that use Jetty ALPN agent
         alpnagent libraries.jetty_alpn_agent
-
-        jmh 'org.openjdk.jmh:jmh-core:1.19',
-                'org.openjdk.jmh:jmh-generator-bytecode:1.19'
     }
 
     // Disable JavaDoc doclint on Java 8. It's annoying.
@@ -295,6 +282,11 @@ subprojects {
         source = fileTree(dir: "src/test", include: "**/*.java")
     }
 
+    plugins.withId("me.champeau.gradle.jmh") {
+        dependencies {
+            jmh 'org.openjdk.jmh:jmh-core:1.19',
+                    'org.openjdk.jmh:jmh-generator-bytecode:1.19'
+        }
         // invoke jmh on a single benchmark class like so:
         //   ./gradlew -PjmhIncludeSingleClass=StatsTraceContextBenchmark clean :grpc-core:jmh
         jmh {
@@ -311,6 +303,7 @@ subprojects {
                 ]
             }
         }
+    }
 
     task javadocJar(type: Jar) {
         classifier = 'javadoc'

context/build.gradle

@@ -1,3 +1,7 @@
+plugins {
+    id "me.champeau.gradle.jmh"
+}
+
 description = 'gRPC: Context'
 
 dependencies {

core/build.gradle

@@ -1,3 +1,7 @@
+plugins {
+    id "me.champeau.gradle.jmh"
+}
+
 description = 'gRPC: Core'
 
 dependencies {

netty/build.gradle

@@ -1,3 +1,7 @@
+plugins {
+    id "me.champeau.gradle.jmh"
+}
+
 description = "gRPC: Netty"
 dependencies {
     compile project(':grpc-core'),