diff --git a/src/Cache/Cache.php b/src/Cache/Cache.php
index 4ed49fec4eb..fd495df9772 100644
--- a/src/Cache/Cache.php
+++ b/src/Cache/Cache.php
@@ -478,6 +478,11 @@ public static function remember($key, $callable, $config = 'default') {
 		return $results;
 	}
 
+/**
+ * Returns an array mapping url schemes to fully qualified class names
+ *
+ * @return array
+ */
 	public static function getClassMap() {
 		return [
 			'apc' => 'Cake\Cache\Engine\ApcEngine',
diff --git a/src/Datasource/ConnectionManager.php b/src/Datasource/ConnectionManager.php
index 6c9495ef9ca..9b98244fa73 100644
--- a/src/Datasource/ConnectionManager.php
+++ b/src/Datasource/ConnectionManager.php
@@ -107,6 +107,11 @@ public static function parseDsn($config = null) {
 		return $config;
 	}
 
+/**
+ * Returns an array mapping url schemes to fully qualified class names
+ *
+ * @return array
+ */
 	public static function getClassMap() {
 		return [
 			'mysql' => 'Cake\Database\Driver\Mysql',
diff --git a/src/Log/Log.php b/src/Log/Log.php
index 8c6288daa5a..2aee0ba7eb1 100644
--- a/src/Log/Log.php
+++ b/src/Log/Log.php
@@ -481,6 +481,11 @@ public static function info($message, $context = array()) {
 		return static::write(static::$_levelMap['info'], $message, $context);
 	}
 
+/**
+ * Returns an array mapping url schemes to fully qualified class names
+ *
+ * @return array
+ */
 	public static function getClassMap() {
 		return [
 			'console' => 'Cake\Log\Engine\ConsoleLog',
diff --git a/src/Network/Email/Email.php b/src/Network/Email/Email.php
index bbc425a7df4..0f26585a890 100644
--- a/src/Network/Email/Email.php
+++ b/src/Network/Email/Email.php
@@ -1817,7 +1817,11 @@ protected function _getContentTypeCharset() {
 		return strtoupper($this->charset);
 	}
 
-
+/**
+ * Returns an array mapping url schemes to fully qualified class names
+ *
+ * @return array
+ */
 	public static function getClassMap() {
 		return [
 			'debug' => 'Cake\Network\Email\DebugTransport',
diff --git a/tests/TestCase/Core/StaticConfigTraitTest.php b/tests/TestCase/Core/StaticConfigTraitTest.php
index aec972ceec0..bc46794fd13 100644
--- a/tests/TestCase/Core/StaticConfigTraitTest.php
+++ b/tests/TestCase/Core/StaticConfigTraitTest.php
@@ -50,6 +50,7 @@ public static function getClassMap() {
 			'sqlserver' => 'Cake\Database\Driver\Sqlserver',
 		];
 	}
+
 }
 
 /**
@@ -70,6 +71,7 @@ public static function getClassMap() {
 			'xcache' => 'Cake\Cache\Engine\XcacheEngine',
 		];
 	}
+
 }
 
 /**
@@ -86,6 +88,7 @@ public static function getClassMap() {
 			'smtp' => 'Cake\Network\Email\SmtpTransport',
 		];
 	}
+
 }
 
 /**
@@ -102,6 +105,7 @@ public static function getClassMap() {
 			'syslog' => 'Cake\Log\Engine\SyslogLog',
 		];
 	}
+
 }
 
 /**