Review fixes for akka-actor-fork-join-2.5:javaagent (open-telemetry#17875)

Co-authored-by: otelbot <197425009+otelbot@users.noreply.github.com>
Co-authored-by: Trask Stalnaker <trask.stalnaker@gmail.com>

Author: otelbot[bot]

instrumentation/akka/akka-actor-fork-join-2.5/javaagent/build.gradle.kts

@@ -30,9 +30,21 @@ dependencies {
 
   library("com.typesafe.akka:akka-actor_2.11:2.5.0")
 
+  // akka's ForkJoinPool was removed in 2.6, replaced with the normal java.util.concurrent version
+  latestDepTestLibrary("com.typesafe.akka:akka-actor_2.13:2.5.+") // no longer applicable
+
   testImplementation(project(":instrumentation:executors:testing"))
 }
 
+if (otelProps.testLatestDeps) {
+  configurations {
+    // akka artifact name is different for regular and latest tests
+    testImplementation {
+      exclude("com.typesafe.akka", "akka-actor_2.11")
+    }
+  }
+}
+
 if (otelProps.denyUnsafe) {
   tasks.withType<Test>().configureEach {
     enabled = false

instrumentation/akka/akka-actor-fork-join-2.5/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/akkaforkjoin/AkkaForkJoinTaskInstrumentation.java

@@ -55,7 +55,7 @@ public static class ForkJoinTaskAdvice {
 
     /**
      * When {@link ForkJoinTask} object is submitted to {@link ForkJoinPool} as {@link Runnable} or
-     * {@link Callable} it will not get wrapped, instead it will be casted to {@code ForkJoinTask}
+     * {@link Callable} it will not get wrapped, instead it will be cast to {@code ForkJoinTask}
      * directly. This means state is still stored in {@code Runnable} or {@code Callable} and we
      * need to use that state.
      */