diff --git a/composer.json b/composer.json
index 44c376c3..27ee70bc 100644
--- a/composer.json
+++ b/composer.json
@@ -13,12 +13,12 @@
         }
     },
     "require": {
-        "php": ">=5.3.3"
+        "php": ">=5.3.23"
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "2.2-dev",
-            "dev-develop": "2.3-dev"
+            "dev-master": "2.3-dev",
+            "dev-develop": "2.4-dev"
         }
     },
     "autoload-dev": {
diff --git a/src/AbstractIterator.php b/src/AbstractIterator.php
index 4f922ec1..5b28a922 100644
--- a/src/AbstractIterator.php
+++ b/src/AbstractIterator.php
@@ -3,7 +3,7 @@
  * Zend Framework (http://framework.zend.com/)
  *
  * @link      http://github.com/zendframework/zf2 for the canonical source repository
- * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
+ * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
  * @license   http://framework.zend.com/license/new-bsd New BSD License
  */
 
@@ -13,7 +13,13 @@
 
 abstract class AbstractIterator implements RecursiveIterator
 {
+    /**
+     * @var int
+     */
     protected $index    = 0;
+    /**
+     * @var array
+     */
     protected $children = array();
 
     /**
@@ -42,7 +48,7 @@ public function next()
      * (PHP 5 &gt;= 5.0.0)<br/>
      * Return the key of the current element
      * @link http://php.net/manual/en/iterator.key.php
-     * @return scalar scalar on success, or null on failure.
+     * @return int|null scalar on success, or null on failure.
      */
     public function key()
     {
@@ -90,7 +96,7 @@ public function hasChildren()
     /**
      * (PHP 5 &gt;= 5.1.0)<br/>
      * Returns an iterator for the current entry.
-     * @link http://php.net/manual/en/recursiveiterator.getRoles.php
+     * @link http://php.net/manual/en/recursiveiterator.getchildren.php
      * @return RecursiveIterator An iterator for the current entry.
      */
     public function getChildren()
diff --git a/src/AbstractRole.php b/src/AbstractRole.php
index fff1a9ac..d3d6ea76 100644
--- a/src/AbstractRole.php
+++ b/src/AbstractRole.php
@@ -3,7 +3,7 @@
  * Zend Framework (http://framework.zend.com/)
  *
  * @link      http://github.com/zendframework/zf2 for the canonical source repository
- * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
+ * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
  * @license   http://framework.zend.com/license/new-bsd New BSD License
  */
 
diff --git a/src/AssertionInterface.php b/src/AssertionInterface.php
index b94e0aa5..0a01addc 100644
--- a/src/AssertionInterface.php
+++ b/src/AssertionInterface.php
@@ -3,7 +3,7 @@
  * Zend Framework (http://framework.zend.com/)
  *
  * @link      http://github.com/zendframework/zf2 for the canonical source repository
- * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
+ * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
  * @license   http://framework.zend.com/license/new-bsd New BSD License
  */
 
diff --git a/src/Exception/ExceptionInterface.php b/src/Exception/ExceptionInterface.php
index abeb69b2..c94f8b80 100644
--- a/src/Exception/ExceptionInterface.php
+++ b/src/Exception/ExceptionInterface.php
@@ -3,7 +3,7 @@
  * Zend Framework (http://framework.zend.com/)
  *
  * @link      http://github.com/zendframework/zf2 for the canonical source repository
- * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
+ * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
  * @license   http://framework.zend.com/license/new-bsd New BSD License
  */
 
diff --git a/src/Exception/InvalidArgumentException.php b/src/Exception/InvalidArgumentException.php
index a53b3950..9c89a682 100644
--- a/src/Exception/InvalidArgumentException.php
+++ b/src/Exception/InvalidArgumentException.php
@@ -3,7 +3,7 @@
  * Zend Framework (http://framework.zend.com/)
  *
  * @link      http://github.com/zendframework/zf2 for the canonical source repository
- * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
+ * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
  * @license   http://framework.zend.com/license/new-bsd New BSD License
  */
 
diff --git a/src/Rbac.php b/src/Rbac.php
index d1397812..3ce66aa2 100644
--- a/src/Rbac.php
+++ b/src/Rbac.php
@@ -3,7 +3,7 @@
  * Zend Framework (http://framework.zend.com/)
  *
  * @link      http://github.com/zendframework/zf2 for the canonical source repository
- * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
+ * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
  * @license   http://framework.zend.com/license/new-bsd New BSD License
  */
 
@@ -108,15 +108,22 @@ public function getRole($objectOrName)
             );
         }
 
+        if (is_object($objectOrName)) {
+            $requiredRole = $objectOrName->getName();
+        } else {
+            $requiredRole = $objectOrName;
+        }
+
         $it = new RecursiveIteratorIterator($this, RecursiveIteratorIterator::CHILD_FIRST);
         foreach ($it as $leaf) {
-            if ((is_string($objectOrName) && $leaf->getName() == $objectOrName) || $leaf == $objectOrName) {
+            /** @var RoleInterface $leaf */
+            if ($leaf->getName() == $requiredRole) {
                 return $leaf;
             }
         }
 
         throw new Exception\InvalidArgumentException(sprintf(
-            'No child with name "%s" could be found',
+            'No role with name "%s" could be found',
             is_object($objectOrName) ? $objectOrName->getName() : $objectOrName
         ));
     }
@@ -127,6 +134,7 @@ public function getRole($objectOrName)
      * @param  RoleInterface|string             $role
      * @param  string                           $permission
      * @param  AssertionInterface|Callable|null $assert
+     * @throws Exception\InvalidArgumentException
      * @return bool
      */
     public function isGranted($role, $permission, $assert = null)
diff --git a/src/Role.php b/src/Role.php
index 212bd0d0..9daa1d74 100644
--- a/src/Role.php
+++ b/src/Role.php
@@ -3,7 +3,7 @@
  * Zend Framework (http://framework.zend.com/)
  *
  * @link      http://github.com/zendframework/zf2 for the canonical source repository
- * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
+ * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
  * @license   http://framework.zend.com/license/new-bsd New BSD License
  */
 
diff --git a/src/RoleInterface.php b/src/RoleInterface.php
index df75d79a..fd8a65c5 100644
--- a/src/RoleInterface.php
+++ b/src/RoleInterface.php
@@ -3,13 +3,15 @@
  * Zend Framework (http://framework.zend.com/)
  *
  * @link      http://github.com/zendframework/zf2 for the canonical source repository
- * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
+ * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
  * @license   http://framework.zend.com/license/new-bsd New BSD License
  */
 
 namespace Zend\Permissions\Rbac;
 
-interface RoleInterface extends \RecursiveIterator
+use RecursiveIterator;
+
+interface RoleInterface extends RecursiveIterator
 {
     /**
      * Get the name of the role.
diff --git a/test/RbacTest.php b/test/RbacTest.php
index 234ed960..cf6f1ab7 100644
--- a/test/RbacTest.php
+++ b/test/RbacTest.php
@@ -3,20 +3,15 @@
  * Zend Framework (http://framework.zend.com/)
  *
  * @link      http://github.com/zendframework/zf2 for the canonical source repository
- * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
+ * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
  * @license   http://framework.zend.com/license/new-bsd New BSD License
- * @package   Zend_Permissions
  */
 
 namespace ZendTest\Permissions\Rbac;
 
 use Zend\Permissions\Rbac;
-use ZendTest\Permissions\Rbac\TestAsset;
 
 /**
- * @category   Zend
- * @package    Zend_Permissions
- * @subpackage UnitTests
  * @group      Zend_Rbac
  */
 class RbacTest extends \PHPUnit_Framework_TestCase
@@ -87,16 +82,30 @@ public function testIsGrantedChildRoles()
         $this->assertEquals(false, $this->rbac->isGranted('bar', 'can.baz'));
     }
 
+    /**
+     * @covers Zend\Permissions\Rbac\Rbac::hasRole()
+     */
     public function testHasRole()
     {
         $foo = new Rbac\Role('foo');
+        $snafu = new TestAsset\RoleTest('snafu');
 
         $this->rbac->addRole('bar');
         $this->rbac->addRole($foo);
+        $this->rbac->addRole('snafu');
+
+        // check that the container has the same object $foo
+        $this->assertTrue($this->rbac->hasRole($foo));
+
+        // check that the container has the same string "bar"
+        $this->assertTrue($this->rbac->hasRole('bar'));
+
+        // check that the container do not have the string "baz"
+        $this->assertFalse($this->rbac->hasRole('baz'));
 
-        $this->assertEquals(true, $this->rbac->hasRole($foo));
-        $this->assertEquals(true, $this->rbac->hasRole('bar'));
-        $this->assertEquals(false, $this->rbac->hasRole('baz'));
+        // check that we can compare two different objects with same name
+        $this->assertNotEquals($this->rbac->getRole('snafu'), $snafu);
+        $this->assertTrue($this->rbac->hasRole($snafu));
     }
 
     public function testAddRoleFromString()
diff --git a/test/TestAsset/RoleMustMatchAssertion.php b/test/TestAsset/RoleMustMatchAssertion.php
index 5cefa212..369ef842 100644
--- a/test/TestAsset/RoleMustMatchAssertion.php
+++ b/test/TestAsset/RoleMustMatchAssertion.php
@@ -3,9 +3,8 @@
  * Zend Framework (http://framework.zend.com/)
  *
  * @link      http://github.com/zendframework/zf2 for the canonical source repository
- * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
+ * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
  * @license   http://framework.zend.com/license/new-bsd New BSD License
- * @package   Zend_Permissions
  */
 
 namespace ZendTest\Permissions\Rbac\TestAsset;
@@ -15,9 +14,6 @@
 use Zend\Permissions\Rbac\Rbac;
 
 /**
- * @category   Zend
- * @package    Zend_Permissions
- * @subpackage UnitTests
  * @group      Zend_Rbac
  */
 class RoleMustMatchAssertion implements AssertionInterface
diff --git a/test/TestAsset/RoleTest.php b/test/TestAsset/RoleTest.php
new file mode 100644
index 00000000..81a2987c
--- /dev/null
+++ b/test/TestAsset/RoleTest.php
@@ -0,0 +1,23 @@
+<?php
+/**
+ * Zend Framework (http://framework.zend.com/)
+ *
+ * @link      http://github.com/zendframework/zf2 for the canonical source repository
+ * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+namespace ZendTest\Permissions\Rbac\TestAsset;
+
+use Zend\Permissions\Rbac\AbstractRole;
+
+class RoleTest extends AbstractRole
+{
+    /**
+     * @param string $name
+     */
+    public function __construct($name)
+    {
+        $this->name = $name;
+    }
+}
diff --git a/test/TestAsset/SimpleFalseAssertion.php b/test/TestAsset/SimpleFalseAssertion.php
index 637e1df4..99766906 100644
--- a/test/TestAsset/SimpleFalseAssertion.php
+++ b/test/TestAsset/SimpleFalseAssertion.php
@@ -3,9 +3,8 @@
  * Zend Framework (http://framework.zend.com/)
  *
  * @link      http://github.com/zendframework/zf2 for the canonical source repository
- * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
+ * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
  * @license   http://framework.zend.com/license/new-bsd New BSD License
- * @package   Zend_Permissions
  */
 
 namespace ZendTest\Permissions\Rbac\TestAsset;
@@ -14,9 +13,6 @@
 use Zend\Permissions\Rbac\Rbac;
 
 /**
- * @category   Zend
- * @package    Zend_Permissions
- * @subpackage UnitTests
  * @group      Zend_Rbac
  */
 class SimpleFalseAssertion implements AssertionInterface
diff --git a/test/TestAsset/SimpleTrueAssertion.php b/test/TestAsset/SimpleTrueAssertion.php
index 2eac096b..1ea5eb2c 100644
--- a/test/TestAsset/SimpleTrueAssertion.php
+++ b/test/TestAsset/SimpleTrueAssertion.php
@@ -3,9 +3,8 @@
  * Zend Framework (http://framework.zend.com/)
  *
  * @link      http://github.com/zendframework/zf2 for the canonical source repository
- * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
+ * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
  * @license   http://framework.zend.com/license/new-bsd New BSD License
- * @package   Zend_Permissions
  */
 
 namespace ZendTest\Permissions\Rbac\TestAsset;
@@ -14,9 +13,6 @@
 use Zend\Permissions\Rbac\Rbac;
 
 /**
- * @category   Zend
- * @package    Zend_Permissions
- * @subpackage UnitTests
  * @group      Zend_Rbac
  */
 class SimpleTrueAssertion implements AssertionInterface