Fix PaginationRequest.getProperty() method doesn't return anything

components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/PaginationRequest.java

@@ -141,8 +141,8 @@ public class PaginationRequest {
         this.property.putAll(parameters);
     }
 
-    public void getProperty(String key) {
-        this.property.get(key);
+    public Object getProperty(String key) {
+        return this.property.get(key);
     }
 
     public Map<String, Object> getProperties() {