diff --git a/src/main/java/com/alibaba/druid/util/JdbcUtils.java b/src/main/java/com/alibaba/druid/util/JdbcUtils.java
index 583b3e434f..be9f847ee8 100644
--- a/src/main/java/com/alibaba/druid/util/JdbcUtils.java
+++ b/src/main/java/com/alibaba/druid/util/JdbcUtils.java
@@ -352,6 +352,10 @@ public final class JdbcUtils {
             return "com.alibaba.druid.mock.MockDriver";
         } else if (rawUrl.startsWith("jdbc:postgresql:")) {
             return "org.postgresql.Driver";
+        } else if (rawUrl.startsWith("jdbc:hsqldb:")) {
+            return "org.hsqldb.jdbcDriver";
+        } else if (rawUrl.startsWith("jdbc:db2:")) {
+            return "COM.ibm.db2.jdbc.app.DB2Driver";
         } else {
             throw new SQLException("unkow jdbc driver");
         }
diff --git a/src/test/java/com/alibaba/druid/bvt/pool/PasswordCallbackTest.java b/src/test/java/com/alibaba/druid/bvt/pool/PasswordCallbackTest.java
index 98b44e6d04..59b0724dc3 100644
--- a/src/test/java/com/alibaba/druid/bvt/pool/PasswordCallbackTest.java
+++ b/src/test/java/com/alibaba/druid/bvt/pool/PasswordCallbackTest.java
@@ -27,7 +27,8 @@ public class PasswordCallbackTest extends TestCase {
     }
 
     public static class TestPasswordCallback extends PasswordCallback {
-
+        private static final long serialVersionUID = 1L;
+        
         private String     url;
         private Properties properties;
 
@@ -55,10 +56,5 @@ public class PasswordCallbackTest extends TestCase {
             this.properties = properties;
         }
 
-        /**
-         * 
-         */
-        private static final long serialVersionUID = 1L;
-
     }
 }