diff --git a/dbus-java-core/src/main/java/org/freedesktop/dbus/DBusAsyncReply.java b/dbus-java-core/src/main/java/org/freedesktop/dbus/DBusAsyncReply.java
index 00d84087..4ceaa4e3 100644
--- a/dbus-java-core/src/main/java/org/freedesktop/dbus/DBusAsyncReply.java
+++ b/dbus-java-core/src/main/java/org/freedesktop/dbus/DBusAsyncReply.java
@@ -42,6 +42,7 @@ private synchronized void checkReply() {
 
                     rval = (T) obj;
                 } catch (DBusExecutionException _ex) {
+                    logger.trace("DBusExecutionException while creating message from MethodReturn", _ex);
                     error = _ex;
                 } catch (DBusException _ex) {
                     logger.debug("RemoteInvocationHandler failed", _ex);
diff --git a/dbus-java-core/src/main/java/org/freedesktop/dbus/Marshalling.java b/dbus-java-core/src/main/java/org/freedesktop/dbus/Marshalling.java
index 70adfe8c..b86a44e2 100644
--- a/dbus-java-core/src/main/java/org/freedesktop/dbus/Marshalling.java
+++ b/dbus-java-core/src/main/java/org/freedesktop/dbus/Marshalling.java
@@ -642,6 +642,7 @@ static Object deSerializeParameter(Object _parameter, Type _type, AbstractConnec
             } else {
                 type2 = null;
             }
+            LOGGER.trace("Type is: {}", type2);
             if (null != type2) {
                 parameter = deSerializeParameters((List<Object>) parameter, type2, _conn);
             }
diff --git a/dbus-java-core/src/main/java/org/freedesktop/dbus/StructHelper.java b/dbus-java-core/src/main/java/org/freedesktop/dbus/StructHelper.java
index 5760c456..a31ce233 100644
--- a/dbus-java-core/src/main/java/org/freedesktop/dbus/StructHelper.java
+++ b/dbus-java-core/src/main/java/org/freedesktop/dbus/StructHelper.java
@@ -3,6 +3,7 @@
 import org.freedesktop.dbus.annotations.Position;
 import org.freedesktop.dbus.types.DBusStructType;
 import org.freedesktop.dbus.types.Variant;
+import org.freedesktop.dbus.utils.PrimitiveUtils;
 
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Field;
@@ -180,8 +181,8 @@ public static <T extends Struct> T createStruct(Class<?>[] _constructorArgs, Obj
         } catch (NoSuchMethodException | SecurityException _ex) {
             for (int i = 0; i < _constructorArgs.length; i++) {
                 Class<?> class1 = _constructorArgs[i];
-                if (ArrayFrob.getWrapperToPrimitiveTypes().containsKey(class1)) {
-                    _constructorArgs[i] = ArrayFrob.getWrapperToPrimitiveTypes().get(class1);
+                if (PrimitiveUtils.getWrapperToPrimitiveTypes().containsKey(class1)) {
+                    _constructorArgs[i] = PrimitiveUtils.getWrapperToPrimitiveTypes().get(class1);
                     return createStruct(_constructorArgs, _values, _classToConstruct);
                 }
             }
diff --git a/dbus-java-tests/src/test/java/sample/issue/Issue268Test.java b/dbus-java-tests/src/test/java/sample/issue/Issue268Test.java
index 0a7f22a4..5b298496 100644
--- a/dbus-java-tests/src/test/java/sample/issue/Issue268Test.java
+++ b/dbus-java-tests/src/test/java/sample/issue/Issue268Test.java
@@ -6,7 +6,6 @@
 import org.freedesktop.dbus.interfaces.DBusInterface;
 import org.freedesktop.dbus.interfaces.DBusSigHandler;
 import org.freedesktop.dbus.messages.DBusSignal;
-import org.freedesktop.dbus.messages.MethodCall;
 import org.freedesktop.dbus.test.AbstractDBusDaemonBaseTest;
 import org.freedesktop.dbus.types.Variant;
 import org.junit.jupiter.api.Test;
@@ -26,7 +25,6 @@ public class Issue268Test extends AbstractDBusDaemonBaseTest {
 
     @Test
     void testSignal() throws Exception {
-        MethodCall.setDefaultTimeout(1000000);
         List<DBusSignal> failed = new ArrayList<>();
         try (DBusConnection exportDBusConn = export(failed);
             DBusConnection receiveDBusConn = receive()) {