diff --git a/lib/Doctrine/Connection/Exception.php b/lib/Doctrine/Connection/Exception.php
index 8b967f6ba..eae42f278 100644
--- a/lib/Doctrine/Connection/Exception.php
+++ b/lib/Doctrine/Connection/Exception.php
@@ -1,13 +1,29 @@
 <?php
+/* 
+ *  $Id$
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.phpdoctrine.com>.
+ */
 Doctrine::autoload('Doctrine_Exception');
 /**
- * thrown when user tries to get the current 
- * connection and there are no open connections
+ * Doctrine_Exception
+ *
+ * @package     Doctrine ORM
+ * @url         www.phpdoctrine.com
+ * @license     LGPL
  */
-class Doctrine_Connection_Exception extends Doctrine_Exception {
-    public function __construct() {
-        parent::__construct("There are no opened connections. Use 
-                             Doctrine_Manager::getInstance()->openConnection() to open a new connection.",Doctrine::ERR_NO_SESSIONS);
-    }
-}
-
+class Doctrine_Connection_Exception extends Doctrine_Exception { }     
diff --git a/lib/Doctrine/Connection/Firebird/Exception.php b/lib/Doctrine/Connection/Firebird/Exception.php
new file mode 100644
index 000000000..3fc9271ef
--- /dev/null
+++ b/lib/Doctrine/Connection/Firebird/Exception.php
@@ -0,0 +1,29 @@
+<?php
+/* 
+ *  $Id$
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.phpdoctrine.com>.
+ */
+Doctrine::autoload('Doctrine_Connection_Exception');
+/**
+ * Doctrine_Connection_Firebird_Exception
+ *
+ * @package     Doctrine ORM
+ * @url         www.phpdoctrine.com
+ * @license     LGPL
+ */
+class Doctrine_Connection_Firebird_Exception extends Doctrine_Connection_Exception { }
diff --git a/lib/Doctrine/Connection/Informix/Informix.php b/lib/Doctrine/Connection/Informix/Informix.php
new file mode 100644
index 000000000..61168e15e
--- /dev/null
+++ b/lib/Doctrine/Connection/Informix/Informix.php
@@ -0,0 +1,29 @@
+<?php
+/* 
+ *  $Id$
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.phpdoctrine.com>.
+ */
+Doctrine::autoload('Doctrine_Connection_Exception');
+/**
+ * Doctrine_Connection_Informix_Exception
+ *
+ * @package     Doctrine ORM
+ * @url         www.phpdoctrine.com
+ * @license     LGPL
+ */
+class Doctrine_Connection_Informix_Exception extends Doctrine_Connection_Exception { }
diff --git a/lib/Doctrine/Connection/Mssql/Mssql.php b/lib/Doctrine/Connection/Mssql/Mssql.php
new file mode 100644
index 000000000..6af4ce15e
--- /dev/null
+++ b/lib/Doctrine/Connection/Mssql/Mssql.php
@@ -0,0 +1,29 @@
+<?php
+/* 
+ *  $Id$
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.phpdoctrine.com>.
+ */
+Doctrine::autoload('Doctrine_Connection_Exception');
+/**
+ * Doctrine_Connection_Mssql_Exception
+ *
+ * @package     Doctrine ORM
+ * @url         www.phpdoctrine.com
+ * @license     LGPL
+ */
+class Doctrine_Connection_Mssql_Exception extends Doctrine_Connection_Exception { }
diff --git a/lib/Doctrine/Connection/Mysql/Exception.php b/lib/Doctrine/Connection/Mysql/Exception.php
new file mode 100644
index 000000000..e97f057da
--- /dev/null
+++ b/lib/Doctrine/Connection/Mysql/Exception.php
@@ -0,0 +1,29 @@
+<?php
+/* 
+ *  $Id$
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.phpdoctrine.com>.
+ */
+Doctrine::autoload('Doctrine_Connection_Exception');
+/**
+ * Doctrine_Connection_Mysql_Exception
+ *
+ * @package     Doctrine ORM
+ * @url         www.phpdoctrine.com
+ * @license     LGPL
+ */
+class Doctrine_Connection_Mysql_Exception extends Doctrine_Connection_Exception { }
diff --git a/lib/Doctrine/Connection/Oracle/Exception.php b/lib/Doctrine/Connection/Oracle/Exception.php
new file mode 100644
index 000000000..84c070f01
--- /dev/null
+++ b/lib/Doctrine/Connection/Oracle/Exception.php
@@ -0,0 +1,29 @@
+<?php
+/* 
+ *  $Id$
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.phpdoctrine.com>.
+ */
+Doctrine::autoload('Doctrine_Connection_Exception');
+/**
+ * Doctrine_Connection_Oracle_Exception
+ *
+ * @package     Doctrine ORM
+ * @url         www.phpdoctrine.com
+ * @license     LGPL
+ */
+class Doctrine_Connection_Oracle_Exception extends Doctrine_Connection_Exception { }
diff --git a/lib/Doctrine/Connection/Pgsql/Exception.php b/lib/Doctrine/Connection/Pgsql/Exception.php
new file mode 100644
index 000000000..583431ab8
--- /dev/null
+++ b/lib/Doctrine/Connection/Pgsql/Exception.php
@@ -0,0 +1,29 @@
+<?php
+/* 
+ *  $Id$
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.phpdoctrine.com>.
+ */
+Doctrine::autoload('Doctrine_Connection_Exception');
+/**
+ * Doctrine_Connection_Pgsql_Exception
+ *
+ * @package     Doctrine ORM
+ * @url         www.phpdoctrine.com
+ * @license     LGPL
+ */
+class Doctrine_Connection_Pgsql_Exception extends Doctrine_Connection_Exception { }
diff --git a/lib/Doctrine/Connection/Sqlite/Sqlite.php b/lib/Doctrine/Connection/Sqlite/Sqlite.php
new file mode 100644
index 000000000..afabf31da
--- /dev/null
+++ b/lib/Doctrine/Connection/Sqlite/Sqlite.php
@@ -0,0 +1,29 @@
+<?php
+/* 
+ *  $Id$
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.phpdoctrine.com>.
+ */
+Doctrine::autoload('Doctrine_Connection_Exception');
+/**
+ * Doctrine_Connection_Sqlite_Exception
+ *
+ * @package     Doctrine ORM
+ * @url         www.phpdoctrine.com
+ * @license     LGPL
+ */
+class Doctrine_Connection_Sqlite_Exception extends Doctrine_Connection_Exception { }