diff --git a/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/ConnectionLeakUtil.java b/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/ConnectionLeakUtil.java
index 0983622bb4..3dd5dd46a1 100644
--- a/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/ConnectionLeakUtil.java
+++ b/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/ConnectionLeakUtil.java
@@ -16,6 +16,9 @@ import org.hibernate.dialect.Dialect;
 
 import org.hibernate.testing.jdbc.JdbcProperties;
 
+/**
+ * @author Vlad Mihalcea
+ */
 public class ConnectionLeakUtil {
 
 	private JdbcProperties jdbcProperties = JdbcProperties.INSTANCE;
diff --git a/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/H2IdleConnectionCounter.java b/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/H2IdleConnectionCounter.java
index 261c1ef23a..c40e0fdf61 100644
--- a/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/H2IdleConnectionCounter.java
+++ b/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/H2IdleConnectionCounter.java
@@ -1,3 +1,9 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
 package org.hibernate.testing.jdbc.leak;
 
 import java.sql.Connection;
diff --git a/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/MySQLIdleConnectionCounter.java b/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/MySQLIdleConnectionCounter.java
index 1ce4e5d4e8..d96eeb87e6 100644
--- a/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/MySQLIdleConnectionCounter.java
+++ b/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/MySQLIdleConnectionCounter.java
@@ -1,3 +1,9 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
 package org.hibernate.testing.jdbc.leak;
 
 import java.sql.Connection;
diff --git a/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/OracleIdleConnectionCounter.java b/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/OracleIdleConnectionCounter.java
index 2b36527cb8..f12ebef303 100644
--- a/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/OracleIdleConnectionCounter.java
+++ b/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/OracleIdleConnectionCounter.java
@@ -1,3 +1,9 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
 package org.hibernate.testing.jdbc.leak;
 
 import java.sql.Connection;
diff --git a/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/PostgreSQLIdleConnectionCounter.java b/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/PostgreSQLIdleConnectionCounter.java
index 62555a059f..b16e92d546 100644
--- a/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/PostgreSQLIdleConnectionCounter.java
+++ b/hibernate-testing/src/main/java/org/hibernate/testing/jdbc/leak/PostgreSQLIdleConnectionCounter.java
@@ -1,3 +1,9 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
 package org.hibernate.testing.jdbc.leak;
 
 import java.sql.Connection;