one bug and maybe not so much that info, plz

code/MoyaDatabase/src/META-INF/persistence.xml

@@ -5,10 +5,7 @@
 	<persistence-unit name="MoyaDb">
 		<jta-data-source>jdbc/moyaDb</jta-data-source>
 		<properties>
-			<property name="eclipselink.ddl-generation" value="create-tables" />
 			<property name="eclipselink.cache.size.default" value="16384" />
-			<property name="eclipselink.ddl-generation.output-mode"
-				value="sql-script" />
 			<property name="eclipselink.logging.logger" value="ServerLogger" />
 			<property name="eclipselink.jdbc.uppercase-columns" value="false" />
 			<property name="eclipselink.target-database"
@@ -18,6 +15,7 @@
 			<property name="eclipselink.target-server" value="Glassfish" />
 			<property name="eclipselink.session.customizer"
 				value="fi.codecrew.moya.database.eclipselink.MoyaSessionCustomizer" />
+			<property name="eclipselink.ddl-generation" value="none"/>
 		</properties>
 		
 	</persistence-unit>

code/MoyaDatabase/src/fi/codecrew/moya/model/Lecture.java

@@ -184,8 +184,8 @@ public class Lecture extends GenericEntity {
 		newLecture.setName(getName());
 		newLecture.setHours(getHours());
 		newLecture.setMaxParticipantsCount(getMaxParticipantsCount());
-		newLecture.setStartTime(getStartTime());
-		newLecture.setOpenForRoles(getOpenForRoles());
+		newLecture.setStartTime( (Calendar) getStartTime().clone());
+		newLecture.setOpenForRoles(new ArrayList<Role>(getOpenForRoles()));
 
 		return newLecture;
 	}

code/MoyaDatabase/src/fi/codecrew/moya/model/converters/JsonAttributeConverter.java

@@ -21,7 +21,7 @@ public class JsonAttributeConverter implements AttributeConverter<JsonObject, PG
 	 * JsonObject -> PGobject
 	 */
 	public PGobject convertToDatabaseColumn(JsonObject jsonObject) {
-		log.info("Converting JsonObject to PGobject. Original JsonObject: {}", jsonObject);
+		//log.info("Converting JsonObject to PGobject. Original JsonObject: {}", jsonObject);
 
 		PGobject pgObject = new PGobject();
 		pgObject.setType("json");
@@ -34,7 +34,7 @@ public class JsonAttributeConverter implements AttributeConverter<JsonObject, PG
 		} catch (SQLException e) {
 			log.warn("PGobject.setValue() threw an exception. Should not happen. Something is wrong.", e);
 		}
-		log.info("Converted JsonObject to PGobject: {}", pgObject);
+//		log.info("Converted JsonObject to PGobject: {}", pgObject);
 		return pgObject;
 	}
 
@@ -42,11 +42,11 @@ public class JsonAttributeConverter implements AttributeConverter<JsonObject, PG
 	 * PGobject -> JsonObject
 	 */
 	public JsonObject convertToEntityAttribute(PGobject pgObject) {
-		log.info("Converting PGobject to JsonObject. Original PGobject: {}", pgObject);
+//		log.info("Converting PGobject to JsonObject. Original PGobject: {}", pgObject);
 
 		// Convert null values to empty object
 		if (pgObject == null) {
-			log.info("PGobject was null. Retruning an empty JsonObject.");
+//			log.info("PGobject was null. Retruning an empty JsonObject.");
 			return Json.createObjectBuilder().build();
 		}
 
@@ -63,7 +63,7 @@ public class JsonAttributeConverter implements AttributeConverter<JsonObject, PG
 		if (stringValue != null && !stringValue.toLowerCase().equals("null")) {
 			JsonReader jsonReader = Json.createReader(new StringReader(stringValue));
 			JsonObject jsonObject = jsonReader.readObject();
-			log.info("Converted PGobject to JsonObject: {}", jsonObject);
+//			log.info("Converted PGobject to JsonObject: {}", jsonObject);
 			return jsonObject;
 		} else {
 			log.info("Null value. Returning empty JsonObject");