diff --git a/otel-extension/src/main/scala/io/scalac/mesmer/otelextension/instrumentations/akka/actor/AkkaMailboxInstrumentations.scala b/otel-extension/src/main/scala/io/scalac/mesmer/otelextension/instrumentations/akka/actor/AkkaMailboxInstrumentations.scala
index 4c5dffdc5..265a45e06 100644
--- a/otel-extension/src/main/scala/io/scalac/mesmer/otelextension/instrumentations/akka/actor/AkkaMailboxInstrumentations.scala
+++ b/otel-extension/src/main/scala/io/scalac/mesmer/otelextension/instrumentations/akka/actor/AkkaMailboxInstrumentations.scala
@@ -1,5 +1,7 @@
 package io.scalac.mesmer.otelextension.instrumentations.akka.actor
 
+import java.lang.{ Boolean => JBoolean }
+
 import akka.MesmerMirrorTypes.ActorRefWithCell
 import akka.MesmerMirrorTypes.Cell
 import akka.actor.BoundedQueueProxy
@@ -31,7 +33,7 @@ object BoundedNodeMessageQueueAdvice {
       case _: BoundedNodeMessageQueue =>
         incDropped(
           VirtualField
-            .find(classOf[AbstractBoundedNodeQueue[_]], classOf[Boolean])
+            .find(classOf[AbstractBoundedNodeQueue[_]], classOf[JBoolean])
             .get(self.asInstanceOf[AbstractBoundedNodeQueue[_]]),
           withCell.underlying
         )
@@ -45,11 +47,10 @@ object BoundedNodeMessageQueueAdvice {
 
   @inline
   private def incDropped(result: Boolean, cell: Cell): Unit =
-    if (result && (cell ne null)) {
+    if (!result && (cell ne null)) {
       val maybeActorMetrics = ActorCellDecorator.getMetrics(cell)
       for {
         actorMetrics <- maybeActorMetrics if actorMetrics.droppedMessages.isDefined
-
       } actorMetrics.droppedMessages.get.inc()
     }
 }
@@ -59,7 +60,7 @@ object AbstractBoundedNodeQueueAdvice {
   @OnMethodExit
   def add(@Return result: Boolean, @Advice.This self: Object): Unit =
     VirtualField
-      .find(classOf[AbstractBoundedNodeQueue[_]], classOf[Boolean])
+      .find(classOf[AbstractBoundedNodeQueue[_]], classOf[JBoolean])
       .set(self.asInstanceOf[AbstractBoundedNodeQueue[_]], result)
 
 }
diff --git a/otel-extension/src/test/scala/io/scalac/mesmer/instrumentation/akka/actor/ActorMailboxTest.scala b/otel-extension/src/test/scala/io/scalac/mesmer/instrumentation/akka/actor/ActorMailboxTest.scala
index 5f58f4f56..a89809784 100644
--- a/otel-extension/src/test/scala/io/scalac/mesmer/instrumentation/akka/actor/ActorMailboxTest.scala
+++ b/otel-extension/src/test/scala/io/scalac/mesmer/instrumentation/akka/actor/ActorMailboxTest.scala
@@ -83,25 +83,25 @@ class ActorMailboxTest
           |
           |bounded-node-queue {
           |  mailbox-type = "akka.dispatch.NonBlockingBoundedMailbox"
-          |  mailbox-capacity = 5
+          |  mailbox-capacity = 3
           |}
           |
           |bounded-queue {
           |  mailbox-type = "akka.dispatch.BoundedMailbox"
           |   mailbox-push-timeout-time=0
-          |  mailbox-capacity = 5
+          |  mailbox-capacity = 3
           |}
           |
           |bounded-priority-queue {
           |  mailbox-type = "io.scalac.mesmer.instrumentation.akka.actor.HashCodePriorityMailbox"
           |  mailbox-push-timeout-time=1
-          |  mailbox-capacity = 5
+          |  mailbox-capacity = 3
           |}
           |
           |bounded-stable-priority-queue {
           |  mailbox-type = "io.scalac.mesmer.instrumentation.akka.actor.StableHashCodePriorityMailbox"
           |  mailbox-push-timeout-time=1
-          |  mailbox-capacity = 5
+          |  mailbox-capacity = 3
           |}
           |""".stripMargin
       )
@@ -135,7 +135,7 @@ class ActorMailboxTest
     (sut, context)
   }
 
-  private def testWithProps(props: Props, amountOfMessages: Int = 10, expectedValue: Long = 5): Any = {
+  private def testWithProps(props: Props, amountOfMessages: Int = 10, expectedValue: Long = 7): Any = {
 
     val (sut, context) = actorRefWithContext(props)