diff --git a/include/caosdb/logging.h b/include/caosdb/logging.h
index 0fa4da51c5de7727e8d882d9679b04a4d1bdaa38..73f14cad5ad779dcb2bdb134325ad7397f436edb 100644
--- a/include/caosdb/logging.h
+++ b/include/caosdb/logging.h
@@ -41,11 +41,11 @@ typedef boost::log::sources::severity_channel_logger_mt<int, std::string> boost_
 
 class logger {
 public:
-  static boost_logger_class &get() { return *logger::GetInstance()._logger_instance; }
-  static void destroy() {
+  static auto destroy() -> void {
     auto &instance = logger::GetInstance();
     delete instance._logger_instance;
   }
+  static auto get() -> boost_logger_class & { return *logger::GetInstance()._logger_instance; }
 
 private:
   logger() { this->_logger_instance = new boost_logger_class(); };
@@ -56,8 +56,6 @@ private:
   boost_logger_class *_logger_instance;
 };
 
-auto inline get_logger() -> boost_logger_class & { return logger::get(); }
-
 /**
  * This class stores the integer log level.
  */
@@ -203,17 +201,17 @@ void caosdb_log_trace(const char *channel, const char *msg);
 } // namespace caosdb::logging
 
 #define CAOSDB_LOG_FATAL(Channel)                                                                  \
-  BOOST_LOG_CHANNEL_SEV(caosdb::logging::get_logger(), Channel, CAOSDB_LOG_LEVEL_FATAL)
+  BOOST_LOG_CHANNEL_SEV(caosdb::logging::logger::get(), Channel, CAOSDB_LOG_LEVEL_FATAL)
 #define CAOSDB_LOG_ERROR(Channel)                                                                  \
-  BOOST_LOG_CHANNEL_SEV(caosdb::logging::get_logger(), Channel, CAOSDB_LOG_LEVEL_ERROR)
+  BOOST_LOG_CHANNEL_SEV(caosdb::logging::logger::get(), Channel, CAOSDB_LOG_LEVEL_ERROR)
 #define CAOSDB_LOG_WARN(Channel)                                                                   \
-  BOOST_LOG_CHANNEL_SEV(caosdb::logging::get_logger(), Channel, CAOSDB_LOG_LEVEL_WARN)
+  BOOST_LOG_CHANNEL_SEV(caosdb::logging::logger::get(), Channel, CAOSDB_LOG_LEVEL_WARN)
 #define CAOSDB_LOG_INFO(Channel)                                                                   \
-  BOOST_LOG_CHANNEL_SEV(caosdb::logging::get_logger(), Channel, CAOSDB_LOG_LEVEL_INFO)
+  BOOST_LOG_CHANNEL_SEV(caosdb::logging::logger::get(), Channel, CAOSDB_LOG_LEVEL_INFO)
 #define CAOSDB_LOG_DEBUG(Channel)                                                                  \
-  BOOST_LOG_CHANNEL_SEV(caosdb::logging::get_logger(), Channel, CAOSDB_LOG_LEVEL_DEBUG)
+  BOOST_LOG_CHANNEL_SEV(caosdb::logging::logger::get(), Channel, CAOSDB_LOG_LEVEL_DEBUG)
 #define CAOSDB_LOG_TRACE(Channel)                                                                  \
-  BOOST_LOG_CHANNEL_SEV(caosdb::logging::get_logger(), Channel, CAOSDB_LOG_LEVEL_TRACE)
+  BOOST_LOG_CHANNEL_SEV(caosdb::logging::logger::get(), Channel, CAOSDB_LOG_LEVEL_TRACE)
 
 #define CAOSDB_LOG_ERROR_AND_RETURN_STATUS(Channel, StatusCode, Message)                           \
   CAOSDB_LOG_ERROR(Channel) << "StatusCode (" << StatusCode << ") "                                \
diff --git a/src/caosdb/logging.cpp b/src/caosdb/logging.cpp
index c684862d17291c328e3a8d7856b82df1eb507001..ddbda4f05a2582ae058f63f7b4c1c8453b9960dd 100644
--- a/src/caosdb/logging.cpp
+++ b/src/caosdb/logging.cpp
@@ -44,13 +44,8 @@
 #include <utility> // for move
 #include <vector>
 
-void __attribute__((constructor)) startup() {
-  std::cout << "LOADING CAOSDB" << std::endl;
-}
-void __attribute__((destructor)) shutdown() {
-  std::cout << "UNLOADING CAOSDB" << std::endl;
-  caosdb::logging::logger::destroy();
-}
+void __attribute__((constructor)) startup() {}
+void __attribute__((destructor)) shutdown() { caosdb::logging::logger::destroy(); }
 
 namespace caosdb::logging {
 
@@ -140,7 +135,7 @@ auto initialize_logging_defaults() -> int {
   }
 
   boost::log::init_from_settings(default_settings);
-  // core->add_global_attribute("TimeStamp", boost::log::attributes::local_clock());
+  core->add_global_attribute("TimeStamp", boost::log::attributes::local_clock());
 
   CAOSDB_LOG_DEBUG(logger_name) << "Initialized default settings.";
 
@@ -176,27 +171,27 @@ auto initialize_logging(const LoggingConfiguration &configuration) -> void {
 }
 
 void caosdb_log_fatal(const char *channel, const char *msg) {
-  BOOST_LOG_CHANNEL_SEV(caosdb::logging::get_logger(), channel, CAOSDB_LOG_LEVEL_FATAL) << msg;
+  BOOST_LOG_CHANNEL_SEV(caosdb::logging::logger::get(), channel, CAOSDB_LOG_LEVEL_FATAL) << msg;
 }
 
 void caosdb_log_error(const char *channel, const char *msg) {
-  BOOST_LOG_CHANNEL_SEV(caosdb::logging::get_logger(), channel, CAOSDB_LOG_LEVEL_ERROR) << msg;
+  BOOST_LOG_CHANNEL_SEV(caosdb::logging::logger::get(), channel, CAOSDB_LOG_LEVEL_ERROR) << msg;
 }
 
 void caosdb_log_warn(const char *channel, const char *msg) {
-  BOOST_LOG_CHANNEL_SEV(caosdb::logging::get_logger(), channel, CAOSDB_LOG_LEVEL_WARN) << msg;
+  BOOST_LOG_CHANNEL_SEV(caosdb::logging::logger::get(), channel, CAOSDB_LOG_LEVEL_WARN) << msg;
 }
 
 void caosdb_log_info(const char *channel, const char *msg) {
-  BOOST_LOG_CHANNEL_SEV(caosdb::logging::get_logger(), channel, CAOSDB_LOG_LEVEL_INFO) << msg;
+  BOOST_LOG_CHANNEL_SEV(caosdb::logging::logger::get(), channel, CAOSDB_LOG_LEVEL_INFO) << msg;
 }
 
 void caosdb_log_debug(const char *channel, const char *msg) {
-  BOOST_LOG_CHANNEL_SEV(caosdb::logging::get_logger(), channel, CAOSDB_LOG_LEVEL_DEBUG) << msg;
+  BOOST_LOG_CHANNEL_SEV(caosdb::logging::logger::get(), channel, CAOSDB_LOG_LEVEL_DEBUG) << msg;
 }
 
 void caosdb_log_trace(const char *channel, const char *msg) {
-  BOOST_LOG_CHANNEL_SEV(caosdb::logging::get_logger(), channel, CAOSDB_LOG_LEVEL_TRACE) << msg;
+  BOOST_LOG_CHANNEL_SEV(caosdb::logging::logger::get(), channel, CAOSDB_LOG_LEVEL_TRACE) << msg;
 }
 
 } // namespace caosdb::logging
diff --git a/test/test_entity.cpp b/test/test_entity.cpp
index 27b6025b6e9534850daea9e01ea58977d6235ba2..6e2559adf6b89881d990148ba306e1ba2d05892b 100644
--- a/test/test_entity.cpp
+++ b/test/test_entity.cpp
@@ -143,16 +143,17 @@ TEST(test_entity, test_append_property) {
 }
 
 TEST(test_entity, entity_copy_constructor) {
-  ProtoParent parent;
-  parent.set_description("the parent desc");
-  parent.set_id("the parent id");
-  parent.set_name("the parent name");
-  ProtoProperty property;
-  property.set_id("the-prop-id");
-  property.set_description("the prop-desc");
-  property.set_name("the-prop-name");
-  property.mutable_value()->mutable_list_values()->mutable_values()->Add()->set_double_value(25.5);
-  property.mutable_data_type()->mutable_list_data_type()->set_atomic_data_type(
+  Arena arena;
+  auto *parent = Arena::CreateMessage<ProtoParent>(&arena);
+  parent->set_description("the parent desc");
+  parent->set_id("the parent id");
+  parent->set_name("the parent name");
+  auto *property = Arena::CreateMessage<ProtoProperty>(&arena);
+  property->set_id("the-prop-id");
+  property->set_description("the prop-desc");
+  property->set_name("the-prop-name");
+  property->mutable_value()->mutable_list_values()->mutable_values()->Add()->set_double_value(25.5);
+  property->mutable_data_type()->mutable_list_data_type()->set_atomic_data_type(
     ProtoAtomicDataType::ATOMIC_DATA_TYPE_DOUBLE);
   auto *entity_response = Arena::CreateMessage<EntityResponse>(&arena);
   entity_response->mutable_entity()->set_id("the-id");
@@ -198,16 +199,17 @@ TEST(test_entity, entity_copy_constructor) {
 }
 
 TEST(test_entity, entity_move_constructor) {
-  ProtoParent parent;
-  parent.set_description("the parent desc");
-  parent.set_id("the parent id");
-  parent.set_name("the parent name");
-  ProtoProperty property;
-  property.set_id("the-prop-id");
-  property.set_description("the prop-desc");
-  property.set_name("the-prop-name");
-  property.mutable_value()->mutable_list_values()->mutable_values()->Add()->set_double_value(25.5);
-  property.mutable_data_type()->mutable_list_data_type()->set_atomic_data_type(
+  Arena arena;
+  auto *parent = Arena::CreateMessage<ProtoParent>(&arena);
+  parent->set_description("the parent desc");
+  parent->set_id("the parent id");
+  parent->set_name("the parent name");
+  auto *property = Arena::CreateMessage<ProtoProperty>(&arena);
+  property->set_id("the-prop-id");
+  property->set_description("the prop-desc");
+  property->set_name("the-prop-name");
+  property->mutable_value()->mutable_list_values()->mutable_values()->Add()->set_double_value(25.5);
+  property->mutable_data_type()->mutable_list_data_type()->set_atomic_data_type(
     ProtoAtomicDataType::ATOMIC_DATA_TYPE_DOUBLE);
   auto *entity_response = Arena::CreateMessage<EntityResponse>(&arena);
   entity_response->mutable_errors()->Add()->set_code(25);