remove PekkoScheduleOnceInstrumentation

Author: pjfanning

instrumentation/pekko/pekko-actor-1.0/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/pekkoactor/v1_0/PekkoActorInstrumentationModule.java

@@ -24,7 +24,6 @@ public List<TypeInstrumentation> typeInstrumentations() {
         new PekkoDispatcherInstrumentation(),
         new PekkoActorCellInstrumentation(),
         new PekkoDefaultSystemMessageQueueInstrumentation(),
-        new PekkoScheduleInstrumentation(),
-        new PekkoScheduleOnceInstrumentation());
+        new PekkoScheduleInstrumentation());
   }
 }

instrumentation/pekko/pekko-actor-1.0/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/pekkoactor/v1_0/PekkoScheduleInstrumentation.java

@@ -32,6 +32,12 @@ public void transform(TypeTransformer transformer) {
             .and(takesArgument(2, named("java.lang.Runnable")))
             .and(takesArgument(3, named("scala.concurrent.ExecutionContext"))),
         PekkoScheduleInstrumentation.class.getName() + "$ScheduleAdvice");
+    transformer.applyAdviceToMethod(
+        named("scheduleOnce")
+            .and(takesArgument(0, named("scala.concurrent.duration.FiniteDuration")))
+            .and(takesArgument(1, named("java.lang.Runnable")))
+            .and(takesArgument(2, named("scala.concurrent.ExecutionContext"))),
+        PekkoScheduleInstrumentation.class.getName() + "$ScheduleOnceAdvice");
   }
 
   @SuppressWarnings("unused")
@@ -44,4 +50,15 @@ public static void enterSchedule(
       runnable = context.wrap(runnable);
     }
   }
+
+  @SuppressWarnings("unused")
+  public static class ScheduleOnceAdvice {
+
+    @Advice.OnMethodEnter(suppress = Throwable.class)
+    public static void enterScheduleOnce(
+        @Advice.Argument(value = 1, readOnly = false) Runnable runnable) {
+      Context context = Java8BytecodeBridge.currentContext();
+      runnable = context.wrap(runnable);
+    }
+  }
 }