Ensure mr-jar contains new logger class

Author: Sineaggi

okio/build.gradle.kts

@@ -228,10 +228,16 @@ tasks {
     options.release = 9
   }
 
+  val compileJava9KotlinJvm = named<KotlinCompile>("compileJava9KotlinJvm")
+
   named<Jar>("jvmJar") {
     from(compileJava9Java.flatMap { it.destinationDirectory }) {
       into("META-INF/versions/9")
     }
+    from(compileJava9KotlinJvm.flatMap { it.destinationDirectory }) {
+      into("META-INF/versions/9")
+      exclude("META-INF")
+    }
     val bndExtension = BundleTaskExtension(this)
     bndExtension.setBnd(
       """

okio/src/jvmIntegrationTest/kotlin/okio/test/integration/ModuleTest.kt

@@ -1,6 +1,7 @@
 package okio.test.integration
 
 import org.junit.Assert.assertFalse
+import org.junit.Assert.assertNotNull
 import org.junit.Assert.assertTrue
 import org.junit.Test
 
@@ -13,4 +14,10 @@ class ModuleTest {
     assertTrue(okioModule.isExported("okio"))
     assertFalse(okioModule.isExported("okio.internal"))
   }
+
+  @Test
+  fun testLoggerClassIsPresent() {
+    val logger = Class.forName("okio.internal.Logger")
+    assertNotNull(logger.getResource("/META-INF/versions/9/okio/internal/Logger.class"))
+  }
 }