diff --git a/ballerina/ping_message_job.bal b/ballerina/ping_message_job.bal
index da785c757..22593d2ff 100644
--- a/ballerina/ping_message_job.bal
+++ b/ballerina/ping_message_job.bal
@@ -14,8 +14,8 @@
 // specific language governing permissions and limitations
 // under the License.
 
-import ballerina/websocket;
 import ballerina/task;
+import ballerina/websocket;
 
 class PingMessageJob {
     *task:Job;
@@ -49,18 +49,19 @@ class PingMessageJob {
 
     private isolated function sendPeriodicPingMessageRequests() {
         do {
+            task:JobId? id;
             lock {
-                task:JobId? id = self.id;
-                if id == () {
-                    return;
-                }
-                if !self.caller.isOpen() {
-                    check self.unschedule();
-                    return;
-                }
-                PingMessage message = {'type: WS_PING};
-                check writeMessage(self.caller, message);
+                id = self.id;
+            }
+            if id == () {
+                return;
+            }
+            if !self.caller.isOpen() {
+                check self.unschedule();
+                return;
             }
+            PingMessage message = {'type: WS_PING};
+            check writeMessage(self.caller, message);
         } on fail error cause {
             string message = cause is websocket:Error ? "Failed to send ping message: "
                 : "Failed to unschedule PingMessageJob: ";
diff --git a/ballerina/place_holder.bal b/ballerina/place_holder.bal
index 2fae8869c..1e1dd727a 100644
--- a/ballerina/place_holder.bal
+++ b/ballerina/place_holder.bal
@@ -24,17 +24,13 @@ isolated class Placeholder {
         self.setField('field);
     }
 
-    isolated function setValue(anydata value) {
-        lock {
-            self.value = value.clone();
-        }
-    }
+    isolated function setValue(anydata value) = @java:Method {
+        'class: "io.ballerina.stdlib.graphql.runtime.engine.Placeholder"
+    } external;
 
-    isolated function getValue() returns anydata {
-        lock {
-            return self.value.clone();
-        }
-    }
+    isolated function getValue() returns anydata = @java:Method {
+        'class: "io.ballerina.stdlib.graphql.runtime.engine.Placeholder"
+    } external;
 
     isolated function setField(Field 'field) = @java:Method {
         name: "setFieldValue",
diff --git a/native/src/main/java/io/ballerina/stdlib/graphql/runtime/engine/Placeholder.java b/native/src/main/java/io/ballerina/stdlib/graphql/runtime/engine/Placeholder.java
index 2cb6db734..fd21fe51d 100644
--- a/native/src/main/java/io/ballerina/stdlib/graphql/runtime/engine/Placeholder.java
+++ b/native/src/main/java/io/ballerina/stdlib/graphql/runtime/engine/Placeholder.java
@@ -26,11 +26,20 @@
  * This class provides native implementations of the Ballerina Placeholder class.
  */
 public class Placeholder {
+    private static final BString PLACE_HOLDER_VALUE_OBJECT = StringUtils.fromString("value");
     private static final BString PLACE_HOLDER_FIELD_OBJECT = StringUtils.fromString("field");
 
     private Placeholder() {
     }
 
+    public static void setValue(BObject placeholder, Object value) {
+        placeholder.set(PLACE_HOLDER_VALUE_OBJECT, value);
+    }
+
+    public static Object getValue(BObject placeholder) {
+        return placeholder.get(PLACE_HOLDER_VALUE_OBJECT);
+    }
+
     public static void setFieldValue(BObject placeholder, BObject field) {
         placeholder.set(PLACE_HOLDER_FIELD_OBJECT, field);
     }