diff --git a/.settings/org.eclipse.jdt.core.prefs b/.settings/org.eclipse.jdt.core.prefs
index 8000cd6..6249222 100644
--- a/.settings/org.eclipse.jdt.core.prefs
+++ b/.settings/org.eclipse.jdt.core.prefs
@@ -1,11 +1,12 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.7
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=1.6
+org.eclipse.jdt.core.compiler.compliance=1.7
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.source=1.6
+org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
+org.eclipse.jdt.core.compiler.source=1.7
diff --git a/src/main/java/org/gcube/dataaccess/databases/utils/ConnectionManager.java b/src/main/java/org/gcube/dataaccess/databases/utils/ConnectionManager.java
index d76b901..f1dcb07 100644
--- a/src/main/java/org/gcube/dataaccess/databases/utils/ConnectionManager.java
+++ b/src/main/java/org/gcube/dataaccess/databases/utils/ConnectionManager.java
@@ -211,7 +211,7 @@ public class ConnectionManager {
 
 		} catch (Exception e) {
 
-			// e.printStackTrace();
+			 e.printStackTrace();
 
 			// System.out.println(String.format("Error while executing query: %1$s %2$s",
 			// query, e.getMessage()));
diff --git a/src/main/java/org/gcube/dataaccess/databases/utils/DatabaseFactory.java b/src/main/java/org/gcube/dataaccess/databases/utils/DatabaseFactory.java
index df346ae..2e9b6fb 100644
--- a/src/main/java/org/gcube/dataaccess/databases/utils/DatabaseFactory.java
+++ b/src/main/java/org/gcube/dataaccess/databases/utils/DatabaseFactory.java
@@ -40,7 +40,7 @@ public class DatabaseFactory {
 	public static SessionFactory initDBConnection(String configurationFile,
 			LexicalEngineConfiguration config)
 			throws Exception {
-
+//		AnalysisLogger.getLogger().debug("DatabaseFactory-> start init");
 		if (config == null)
 			return initDBConnection(configurationFile);
 
@@ -137,7 +137,8 @@ public class DatabaseFactory {
 			*/
 			if (element.equals("c3p0.checkoutTimeout")) {
 
-				currentnode.setText("" + (20000));          //added a timeout about 30 seconds 
+//				currentnode.setText("" + (20000));          //added a timeout about 30 seconds 
+				currentnode.setText("" + (1000));           //added a timeout about 5 seconds
 			}
 			
 //			if (element.equals("c3p0.acquireRetryAttempts")) {
@@ -154,6 +155,7 @@ public class DatabaseFactory {
 		cfg.setProperty("hibernate.hbm2ddl.auto", "create");
 
 		SessionFactory DBSessionFactory = null;
+//		AnalysisLogger.getLogger().debug("DatabaseFactory-> buildSession");
 		DBSessionFactory = cfg.buildSessionFactory();
 
 		// close stream
diff --git a/src/main/java/org/gcube/dataaccess/databases/utils/DatabaseManagement.java b/src/main/java/org/gcube/dataaccess/databases/utils/DatabaseManagement.java
index bd31ec6..21289aa 100644
--- a/src/main/java/org/gcube/dataaccess/databases/utils/DatabaseManagement.java
+++ b/src/main/java/org/gcube/dataaccess/databases/utils/DatabaseManagement.java
@@ -469,7 +469,7 @@ public class DatabaseManagement {
 		List<String> list = new ArrayList<String>();
 
 		if (DBType.equals(POSTGRES)) {
-
+//			AnalysisLogger.getLogger().debug("DatabaseManagement-> execute query");
 			List<Object> resultSet = connection.executeQuery(
 					listSchemaNameQuery, sourceDBSession);