Refs #21711: Apply Ricardo's rev

Signed-off-by: Mario Dominguez <mariodominguez@eprosima.com>

Author: Mario-DL

include/fastdds/dds/publisher/DataWriter.hpp

@@ -536,12 +536,13 @@ class DataWriter : public DomainEntity
      */
     RTPS_DllAPI ReturnCode_t get_matched_subscriptions(
             std::vector<InstanceHandle_t>& subscription_handles) const;
-    /**
-     * @note User is responsible for the memory deallocation of the returned vector.
-     */
+
 #ifndef DOXYGEN_SHOULD_SKIP_THIS
     FASTDDS_DEPRECATED_UNTIL(3, "eprosima::fastdds::dds:DataWriter::get_matched_subscriptions()",
             "In favor of version using std::vector<fastrtps::rtps::InstanceHandle_t>.")
+    /**
+     * @note User is responsible for the memory deallocation of the returned vector.
+     */
     RTPS_DllAPI ReturnCode_t get_matched_subscriptions(
             std::vector<InstanceHandle_t*>& subscription_handles) const;
 #endif // DOXYGEN_SHOULD_SKIP_THIS

src/cpp/fastdds/publisher/DataWriterImpl.cpp

@@ -2262,7 +2262,7 @@ ReturnCode_t DataWriterImpl::get_matched_subscriptions(
     {
         for (const GUID_t& guid : matched_reader_guids)
         {
-            subscription_handles.push_back(InstanceHandle_t(guid));
+            subscription_handles.emplace_back(InstanceHandle_t(guid));
         }
         ret = ReturnCode_t::RETCODE_OK;
     }

src/cpp/fastdds/subscriber/DataReaderImpl.cpp

@@ -1232,7 +1232,7 @@ ReturnCode_t DataReaderImpl::get_matched_publications(
     {
         for (const GUID_t& guid : matched_writers_guids)
         {
-            publication_handles.push_back(InstanceHandle_t(guid));
+            publication_handles.emplace_back(InstanceHandle_t(guid));
         }
         ret = ReturnCode_t::RETCODE_OK;
     }

test/mock/rtps/RTPSReader/fastdds/rtps/reader/RTPSReader.h

@@ -180,7 +180,7 @@ class RTPSReader : public Endpoint
     virtual bool matched_writers_guids(
             std::vector<GUID_t>&) const
     {
-        return true;
+        return false;
     }
 
     virtual bool isInCleanState()