diff --git a/zenoh-java/src/commonMain/kotlin/io/zenoh/pubsub/DeleteOptions.kt b/zenoh-java/src/commonMain/kotlin/io/zenoh/pubsub/DeleteOptions.kt
index c9f71a75..e3bd2a22 100644
--- a/zenoh-java/src/commonMain/kotlin/io/zenoh/pubsub/DeleteOptions.kt
+++ b/zenoh-java/src/commonMain/kotlin/io/zenoh/pubsub/DeleteOptions.kt
@@ -33,9 +33,9 @@ import io.zenoh.qos.Reliability
 data class DeleteOptions(
     var reliability: Reliability = Reliability.RELIABLE,
     var attachment: IntoZBytes? = null,
-    var express: Boolean = QoS.defaultQoS.express,
-    var congestionControl: CongestionControl = QoS.defaultQoS.congestionControl,
-    var priority: Priority = QoS.defaultQoS.priority
+    var express: Boolean = QoS.defaultPush.express,
+    var congestionControl: CongestionControl = QoS.defaultPush.congestionControl,
+    var priority: Priority = QoS.defaultPush.priority
 ) {
     fun setAttachment(attachment: String) = apply { this.attachment = ZBytes.from(attachment) }
 }
diff --git a/zenoh-java/src/commonMain/kotlin/io/zenoh/pubsub/PublisherOptions.kt b/zenoh-java/src/commonMain/kotlin/io/zenoh/pubsub/PublisherOptions.kt
index 0759a5b4..960ebb66 100644
--- a/zenoh-java/src/commonMain/kotlin/io/zenoh/pubsub/PublisherOptions.kt
+++ b/zenoh-java/src/commonMain/kotlin/io/zenoh/pubsub/PublisherOptions.kt
@@ -28,6 +28,6 @@ import io.zenoh.qos.*
  */
 data class PublisherOptions(var reliability: Reliability = Reliability.RELIABLE,
                             var encoding: Encoding = Encoding.defaultEncoding(),
-                            var express: Boolean = QoS.defaultQoS.express,
-                            var congestionControl: CongestionControl = QoS.defaultQoS.congestionControl,
-                            var priority: Priority = QoS.defaultQoS.priority)
+                            var express: Boolean = QoS.defaultPush.express,
+                            var congestionControl: CongestionControl = QoS.defaultPush.congestionControl,
+                            var priority: Priority = QoS.defaultPush.priority)
diff --git a/zenoh-java/src/commonMain/kotlin/io/zenoh/pubsub/PutOptions.kt b/zenoh-java/src/commonMain/kotlin/io/zenoh/pubsub/PutOptions.kt
index 2b57e5f4..c4fd8b56 100644
--- a/zenoh-java/src/commonMain/kotlin/io/zenoh/pubsub/PutOptions.kt
+++ b/zenoh-java/src/commonMain/kotlin/io/zenoh/pubsub/PutOptions.kt
@@ -33,9 +33,9 @@ data class PutOptions(
     var encoding: Encoding? = null,
     var reliability: Reliability = Reliability.RELIABLE,
     var attachment: IntoZBytes? = null,
-    var express: Boolean = QoS.defaultQoS.express,
-    var congestionControl: CongestionControl = QoS.defaultQoS.congestionControl,
-    var priority: Priority = QoS.defaultQoS.priority
+    var express: Boolean = QoS.defaultPush.express,
+    var congestionControl: CongestionControl = QoS.defaultPush.congestionControl,
+    var priority: Priority = QoS.defaultPush.priority
 ) {
     fun setAttachment(attachment: String) = apply { this.attachment = ZBytes.from(attachment) }
 }
diff --git a/zenoh-java/src/commonMain/kotlin/io/zenoh/qos/QoS.kt b/zenoh-java/src/commonMain/kotlin/io/zenoh/qos/QoS.kt
index 7b18eedd..49dd317a 100644
--- a/zenoh-java/src/commonMain/kotlin/io/zenoh/qos/QoS.kt
+++ b/zenoh-java/src/commonMain/kotlin/io/zenoh/qos/QoS.kt
@@ -28,6 +28,8 @@ data class QoS (
 ) {
 
     companion object {
-        internal val defaultQoS = QoS()
+        internal val defaultPush = QoS(CongestionControl.DROP, Priority.DATA, false)
+        internal val defaultRequest = QoS(CongestionControl.BLOCK, Priority.DATA, false)
+        internal val defaultResponse = QoS(CongestionControl.BLOCK, Priority.DATA, false)
     }
 }
diff --git a/zenoh-java/src/commonMain/kotlin/io/zenoh/query/Get.kt b/zenoh-java/src/commonMain/kotlin/io/zenoh/query/Get.kt
index fdb2f507..766dc518 100644
--- a/zenoh-java/src/commonMain/kotlin/io/zenoh/query/Get.kt
+++ b/zenoh-java/src/commonMain/kotlin/io/zenoh/query/Get.kt
@@ -38,7 +38,7 @@ data class GetOptions(
     var payload: IntoZBytes? = null,
     var encoding: Encoding? = null,
     var attachment: IntoZBytes? = null,
-    var qos: QoS = QoS.defaultQoS
+    var qos: QoS = QoS.defaultRequest
 ) {
     fun setPayload(payload: String) = apply { this.payload = ZBytes.from(payload) }
     fun setAttachment(attachment: String) = apply { this.attachment = ZBytes.from(attachment) }
diff --git a/zenoh-java/src/commonMain/kotlin/io/zenoh/query/Querier.kt b/zenoh-java/src/commonMain/kotlin/io/zenoh/query/Querier.kt
index 7662576f..cedb34d4 100644
--- a/zenoh-java/src/commonMain/kotlin/io/zenoh/query/Querier.kt
+++ b/zenoh-java/src/commonMain/kotlin/io/zenoh/query/Querier.kt
@@ -159,7 +159,7 @@ data class QuerierOptions(
     var target: QueryTarget = QueryTarget.BEST_MATCHING,
     var consolidationMode: ConsolidationMode = ConsolidationMode.AUTO,
     var timeout: Duration = Duration.ofMillis(10000),
-    var express: Boolean = QoS.defaultQoS.express,
-    var congestionControl: CongestionControl = QoS.defaultQoS.congestionControl,
-    var priority: Priority = QoS.defaultQoS.priority
+    var express: Boolean = QoS.defaultRequest.express,
+    var congestionControl: CongestionControl = QoS.defaultRequest.congestionControl,
+    var priority: Priority = QoS.defaultRequest.priority
 )
diff --git a/zenoh-java/src/commonMain/kotlin/io/zenoh/query/Reply.kt b/zenoh-java/src/commonMain/kotlin/io/zenoh/query/Reply.kt
index 1317076f..265364d5 100644
--- a/zenoh-java/src/commonMain/kotlin/io/zenoh/query/Reply.kt
+++ b/zenoh-java/src/commonMain/kotlin/io/zenoh/query/Reply.kt
@@ -92,9 +92,9 @@ data class ReplyOptions(
     var encoding: Encoding = Encoding.defaultEncoding(),
     var timeStamp: TimeStamp? = null,
     var attachment: IntoZBytes? = null,
-    var express: Boolean = QoS.defaultQoS.express,
-    var congestionControl: CongestionControl = QoS.defaultQoS.congestionControl,
-    var priority: Priority = QoS.defaultQoS.priority
+    var express: Boolean = QoS.defaultResponse.express,
+    var congestionControl: CongestionControl = QoS.defaultResponse.congestionControl,
+    var priority: Priority = QoS.defaultResponse.priority
 ) {
     fun setAttachment(attachment: String) = apply { this.attachment = ZBytes.from(attachment) }
 }
@@ -111,9 +111,9 @@ data class ReplyOptions(
 data class ReplyDelOptions(
     var timeStamp: TimeStamp? = null,
     var attachment: IntoZBytes? = null,
-    var express: Boolean = QoS.defaultQoS.express,
-    var congestionControl: CongestionControl = QoS.defaultQoS.congestionControl,
-    var priority: Priority = QoS.defaultQoS.priority
+    var express: Boolean = QoS.defaultResponse.express,
+    var congestionControl: CongestionControl = QoS.defaultResponse.congestionControl,
+    var priority: Priority = QoS.defaultResponse.priority
 ) {
     fun setAttachment(attachment: String) = apply { this.attachment = ZBytes.from(attachment) }
 }
diff --git a/zenoh-java/src/jvmTest/java/io/zenoh/QuerierTest.java b/zenoh-java/src/jvmTest/java/io/zenoh/QuerierTest.java
index 00cb52b5..b8d33948 100644
--- a/zenoh-java/src/jvmTest/java/io/zenoh/QuerierTest.java
+++ b/zenoh-java/src/jvmTest/java/io/zenoh/QuerierTest.java
@@ -18,6 +18,8 @@
 import io.zenoh.bytes.ZBytes;
 import io.zenoh.exceptions.ZError;
 import io.zenoh.keyexpr.KeyExpr;
+import io.zenoh.qos.CongestionControl;
+import io.zenoh.qos.Priority;
 import io.zenoh.qos.QoS;
 import io.zenoh.query.Querier;
 import io.zenoh.query.Reply;
@@ -56,7 +58,7 @@ public void querier_runsWithCallbackTest() throws ZError {
                 Encoding.defaultEncoding(),
                 SampleKind.PUT,
                 new TimeStamp(Date.from(Instant.now())),
-                new QoS(),
+                new QoS(CongestionControl.BLOCK, Priority.DATA, false),
                 null
         );
         var examplePayload = ZBytes.from("Example payload");
diff --git a/zenoh-java/src/jvmTest/java/io/zenoh/QueryableTest.java b/zenoh-java/src/jvmTest/java/io/zenoh/QueryableTest.java
index b1e5918c..da8d72f2 100644
--- a/zenoh-java/src/jvmTest/java/io/zenoh/QueryableTest.java
+++ b/zenoh-java/src/jvmTest/java/io/zenoh/QueryableTest.java
@@ -53,7 +53,7 @@ public void queryableRunsWithCallback() throws ZError {
                 Encoding.defaultEncoding(),
                 SampleKind.PUT,
                 timestamp,
-                new QoS(),
+                new QoS(CongestionControl.BLOCK, Priority.DATA, false),
                 null
         );