diff --git a/src/fr/devinsy/sikevadb/sql/SQLSikevaDB.java b/src/fr/devinsy/sikevadb/sql/SQLSikevaDB.java
index 98508df..d913abe 100644
--- a/src/fr/devinsy/sikevadb/sql/SQLSikevaDB.java
+++ b/src/fr/devinsy/sikevadb/sql/SQLSikevaDB.java
@@ -51,6 +51,7 @@ import fr.devinsy.util.StringList;
 public class SQLSikevaDB implements SikevaDB
 {
 	private static final Logger logger = LoggerFactory.getLogger(SQLSikevaDB.class);
+
 	private String driverClassname;
 	private String url;
 	private String login;
@@ -77,7 +78,6 @@ public class SQLSikevaDB implements SikevaDB
 	 */
 	public SQLSikevaDB(final String driverClassName, final String url, final String login, final String password)
 	{
-
 		if (StringUtils.isBlank(driverClassName))
 		{
 			throw new NullPointerException("driverClassName is null.");
@@ -1994,22 +1994,18 @@ public class SQLSikevaDB implements SikevaDB
 	@Override
 	public void open() throws InstantiationException, IllegalAccessException, ClassNotFoundException, SQLException, NamingException
 	{
-
 		//
 		close();
 
 		//
 		if (this.url != null)
 		{
-			//
 			Class.forName(this.driverClassname).newInstance();
 			this.singleConnection = DriverManager.getConnection(this.url, this.login, this.password);
 			logger.info("Single connection opened with [{}].", this.url);
-
 		}
 		else if (this.contextName != null)
 		{
-			//
 			Context initialContext = new InitialContext();
 			Context environmentContext = (Context) initialContext.lookup("java:comp/env");
 			this.dataSource = (DataSource) environmentContext.lookup(this.contextName);
@@ -2027,15 +2023,12 @@ public class SQLSikevaDB implements SikevaDB
 	@Override
 	public void put(final Element element) throws SQLException
 	{
-
-		//
 		if (element == null)
 		{
 			throw new IllegalArgumentException("element is null.");
 		}
 		else
 		{
-			//
 			if (exists(element))
 			{
 				//
@@ -2135,14 +2128,12 @@ public class SQLSikevaDB implements SikevaDB
 	@Override
 	public void put(final String key, final String value) throws SQLException
 	{
-
 		//
 		Element element = getElement(key);
 
 		//
 		if (element == null)
 		{
-			//
 			element = new Element();
 			element.setKey(key);
 			element.update(value);
@@ -2150,7 +2141,6 @@ public class SQLSikevaDB implements SikevaDB
 		}
 		else
 		{
-			//
 			element.update(value);
 		}
 
@@ -2209,7 +2199,6 @@ public class SQLSikevaDB implements SikevaDB
 	@Override
 	public void put(final String key, final String subkey, final String value) throws SQLException
 	{
-
 		//
 		Element element = getElement(key, subkey);
 
@@ -2431,7 +2420,6 @@ public class SQLSikevaDB implements SikevaDB
 	@Override
 	public void renameKey(final String oldKey, final String newKey) throws SQLException
 	{
-
 		logger.info("renameKey starting... [{}][{}]", oldKey, newKey);
 
 		//
@@ -2464,7 +2452,6 @@ public class SQLSikevaDB implements SikevaDB
 	@Override
 	public void replaceInValue(final String key, final String... tokens) throws SQLException
 	{
-
 		logger.info("replaceInValue starting... [{}]", key);
 
 		//
@@ -2489,7 +2476,6 @@ public class SQLSikevaDB implements SikevaDB
 	@Override
 	public void replaceInValues(final String key, final String... tokens) throws SQLException
 	{
-
 		logger.info("replaceInValues starting... [{}]", key);
 
 		//