diff --git a/components/testing_framework/Classes/Core/Functional/Framework/Frontend/RequestBootstrap.php b/components/testing_framework/Classes/Core/Functional/Framework/Frontend/RequestBootstrap.php
index 8f7babbac1a5679e192be204b4cddf7b09fb1fce..683c0ab6d915d33d6a9178b94055742ef30069e6 100644
--- a/components/testing_framework/Classes/Core/Functional/Framework/Frontend/RequestBootstrap.php
+++ b/components/testing_framework/Classes/Core/Functional/Framework/Frontend/RequestBootstrap.php
@@ -20,6 +20,10 @@ namespace TYPO3\TestingFramework\Core\Functional\Framework\Frontend;
 class RequestBootstrap
 {
     /**
+     * This method is necessary to set any superglobals like $_SERVER, $_POST, $_COOKIE, $_GET
+     * to start clean for a functional test.
+     *
+     * @param array $requestArguments usually JSON encoded arguments, should include "documentRoot" and "requestUrl"
      * @return void
      */
     public static function setGlobalVariables(array $requestArguments = null)
@@ -84,7 +88,7 @@ class RequestBootstrap
     }
 
     /**
-     * @return void
+     * Calls the set SCRIPT_FILENAME and outputs the contents as JSON
      */
     public static function executeAndOutput()
     {
diff --git a/components/testing_framework/Classes/Fluid/Unit/ViewHelpers/ViewHelperBaseTestcase.php b/components/testing_framework/Classes/Fluid/Unit/ViewHelpers/ViewHelperBaseTestcase.php
index ee9fec9d60ab28e31bbb4d4da52f44f832e28cc7..7a0611849a8491e73850e2f9d523818278d6f658 100644
--- a/components/testing_framework/Classes/Fluid/Unit/ViewHelpers/ViewHelperBaseTestcase.php
+++ b/components/testing_framework/Classes/Fluid/Unit/ViewHelpers/ViewHelperBaseTestcase.php
@@ -74,6 +74,7 @@ abstract class ViewHelperBaseTestcase extends \TYPO3\TestingFramework\Core\Unit\
     protected $mvcPropertyMapperConfigurationService;
 
     /**
+     * Sets up all properties of a viewhelper needed to test a viewhelper
      * @return void
      */
     protected function setUp()
diff --git a/typo3/sysext/backend/Classes/Controller/ContentElement/ElementInformationController.php b/typo3/sysext/backend/Classes/Controller/ContentElement/ElementInformationController.php
index 7641696cb81fd0711c65e326400cdcb62270c1e1..a8c301743d0b41cf4ce4ad1d40130ee08a135b07 100644
--- a/typo3/sysext/backend/Classes/Controller/ContentElement/ElementInformationController.php
+++ b/typo3/sysext/backend/Classes/Controller/ContentElement/ElementInformationController.php
@@ -200,7 +200,8 @@ class ElementInformationController
     }
 
     /**
-     * @return void
+     * Compiles the whole content to be outputted, which is then set as content to the moduleTemplate
+     * There is a hook to do a custom rendering of a record.
      */
     public function main()
     {
diff --git a/typo3/sysext/backend/Classes/Controller/FormInlineAjaxController.php b/typo3/sysext/backend/Classes/Controller/FormInlineAjaxController.php
index 97a8e4463e62242cb9d053c2f0243356c6767dbe..2a2884e3e0ee2dca6749f7c3030a216c8c04a6a2 100644
--- a/typo3/sysext/backend/Classes/Controller/FormInlineAjaxController.php
+++ b/typo3/sysext/backend/Classes/Controller/FormInlineAjaxController.php
@@ -102,7 +102,7 @@ class FormInlineAjaxController extends AbstractFormEngineAjaxController
         // @todo: of children are only created with the "synchronize" button that will trigger a different ajax action.
         // @todo: The edge case of new page overlay together with localized media field, this code won't kick in either.
         // @deprecated: IRRE 'localizationMode' is deprecated and will be removed in TYPO3 CMS 9
-        /**
+        /*
         if ($parent['localizationMode'] === 'select' && MathUtility::canBeInterpretedAsInteger($parent['uid'])) {
             $parentRecord = $inlineRelatedRecordResolver->getRecord($parent['table'], $parent['uid']);
             $parentLanguageField = $GLOBALS['TCA'][$parent['table']]['ctrl']['languageField'];
diff --git a/typo3/sysext/backend/Classes/Form/Container/PaletteAndSingleContainer.php b/typo3/sysext/backend/Classes/Form/Container/PaletteAndSingleContainer.php
index daa4ab37b19d66c24d206873b2b51b9de4dc7e38..73c8b8d84b3340dd66f5d2abd79f485f1598dfab 100644
--- a/typo3/sysext/backend/Classes/Form/Container/PaletteAndSingleContainer.php
+++ b/typo3/sysext/backend/Classes/Form/Container/PaletteAndSingleContainer.php
@@ -45,7 +45,7 @@ class PaletteAndSingleContainer extends AbstractContainer
     {
         $languageService = $this->getLanguageService();
 
-        /**
+        /*
          * The first code block creates a target structure array to later create the final
          * HTML string. The single fields and sub containers are rendered here already and
          * other parts of the return array from children except html are accumulated in
diff --git a/typo3/sysext/core/Classes/DataHandling/DataHandler.php b/typo3/sysext/core/Classes/DataHandling/DataHandler.php
index 16811a8904b599077ccb5a5689bbdaa7b1601016..0d611578a927affee30dc15a919b337fa63cf3cc 100644
--- a/typo3/sysext/core/Classes/DataHandling/DataHandler.php
+++ b/typo3/sysext/core/Classes/DataHandling/DataHandler.php
@@ -705,7 +705,7 @@ class DataHandler
     protected $cachePrefixNestedElementCalls = 'core-datahandler-nestedElementCalls-';
 
     /**
-     *
+     * Sets up the data handler cache and some additional options, the main logic is done in the start() method.
      */
     public function __construct()
     {
diff --git a/typo3/sysext/core/Classes/Messaging/FlashMessageQueue.php b/typo3/sysext/core/Classes/Messaging/FlashMessageQueue.php
index cac6dde4a841222b900688ab46f2be4067455142..7500df42c5edea4a922fddbad9afcbf6cac0c2e4 100644
--- a/typo3/sysext/core/Classes/Messaging/FlashMessageQueue.php
+++ b/typo3/sysext/core/Classes/Messaging/FlashMessageQueue.php
@@ -79,6 +79,7 @@ class FlashMessageQueue extends \SplQueue
     }
 
     /**
+     * This method is empty, as it will not move any flash message (e.g. from the session)
      * @return void
      */
     public function dequeue()
diff --git a/typo3/sysext/core/Classes/Resource/Driver/DriverRegistry.php b/typo3/sysext/core/Classes/Resource/Driver/DriverRegistry.php
index ec56dfc1a15e1921f82f701252104f3993ccee82..5143b780314ff0fba742c14e0ab633135a5275a2 100644
--- a/typo3/sysext/core/Classes/Resource/Driver/DriverRegistry.php
+++ b/typo3/sysext/core/Classes/Resource/Driver/DriverRegistry.php
@@ -30,7 +30,7 @@ class DriverRegistry implements \TYPO3\CMS\Core\SingletonInterface
     protected $driverConfigurations = [];
 
     /**
-     * Creates this object.
+     * Creates this object by detecting all available drivers registered in $TYPO3_CONF_VARS.
      */
     public function __construct()
     {
@@ -83,6 +83,9 @@ class DriverRegistry implements \TYPO3\CMS\Core\SingletonInterface
     }
 
     /**
+     * Adds the TCA information so the registered drivers can be selected when creating a sys_file_storage
+     * in the TYPO3 Backend.
+     *
      * @return void
      */
     public function addDriversToTCA()
diff --git a/typo3/sysext/core/Classes/Resource/ProcessedFile.php b/typo3/sysext/core/Classes/Resource/ProcessedFile.php
index 808abc73f04feb94edf46b9e4de5a2acbbae9a10..1ba8b0f9c266addfd7f68ec9d4e5143b64963cd4 100644
--- a/typo3/sysext/core/Classes/Resource/ProcessedFile.php
+++ b/typo3/sysext/core/Classes/Resource/ProcessedFile.php
@@ -388,6 +388,8 @@ class ProcessedFile extends AbstractFile
     }
 
     /**
+     * Defines that the original file should be used.
+     *
      * @return void
      */
     public function setUsesOriginalFile()
diff --git a/typo3/sysext/core/Tests/Acceptance/Backend/Formhandler/ElementsBasicInputDateCest.php b/typo3/sysext/core/Tests/Acceptance/Backend/Formhandler/ElementsBasicInputDateCest.php
index ecd424c12632f868d765d938d73b3a58581fcc3d..5a212c171a93602ed9c86e8cac7c34dad33b5d7c 100644
--- a/typo3/sysext/core/Tests/Acceptance/Backend/Formhandler/ElementsBasicInputDateCest.php
+++ b/typo3/sysext/core/Tests/Acceptance/Backend/Formhandler/ElementsBasicInputDateCest.php
@@ -179,7 +179,7 @@ class ElementsBasicInputDateCest extends AbstractElementsBasicCest
     /**
      * @param Admin $I
      */
-    /**
+    /*
     public function checkThatValidationWorks_EvalDateTime_DbTypeDateTime(Admin $I)
     {
         // @todo fix these unstable test
diff --git a/typo3/sysext/extbase/Classes/Command/HelpCommandController.php b/typo3/sysext/extbase/Classes/Command/HelpCommandController.php
index 0f20eb7637ad5ff5324cd75de596855ad5fcf092..8886577a84129aa385b2f3dd3fb783ea36895e7b 100644
--- a/typo3/sysext/extbase/Classes/Command/HelpCommandController.php
+++ b/typo3/sysext/extbase/Classes/Command/HelpCommandController.php
@@ -82,6 +82,8 @@ class HelpCommandController extends \TYPO3\CMS\Extbase\Mvc\Controller\CommandCon
     }
 
     /**
+     * Builds an index of all commands that are available
+     *
      * @return void
      */
     protected function displayHelpIndex()
diff --git a/typo3/sysext/extbase/Classes/Persistence/Generic/QueryResult.php b/typo3/sysext/extbase/Classes/Persistence/Generic/QueryResult.php
index aa18658a8478c39a893abab121e0e824cea6d646..382a5d62865984ab210d3cf5c3585485f319ab19 100644
--- a/typo3/sysext/extbase/Classes/Persistence/Generic/QueryResult.php
+++ b/typo3/sysext/extbase/Classes/Persistence/Generic/QueryResult.php
@@ -254,6 +254,8 @@ class QueryResult implements QueryResultInterface
     }
 
     /**
+     * Ensures that the objectManager, persistenceManager and dataMapper are back when loading the QueryResult
+     * from the cache
      * @return void
      */
     public function __wakeup()
diff --git a/typo3/sysext/extensionmanager/Classes/Controller/DownloadController.php b/typo3/sysext/extensionmanager/Classes/Controller/DownloadController.php
index dcc40671b0a988c50d12f867c357b01043b16d94..ae2ee81955fc12491cfd045b262e62c697ace782 100644
--- a/typo3/sysext/extensionmanager/Classes/Controller/DownloadController.php
+++ b/typo3/sysext/extensionmanager/Classes/Controller/DownloadController.php
@@ -112,7 +112,7 @@ class DownloadController extends AbstractController
     }
 
     /**
-     *
+     * Defines which view object should be used for the installFromTer action
      */
     protected function initializeInstallFromTerAction()
     {
diff --git a/typo3/sysext/filelist/Classes/ViewHelpers/Link/ClickMenuOnIconViewHelper.php b/typo3/sysext/filelist/Classes/ViewHelpers/Link/ClickMenuOnIconViewHelper.php
index 82387e486b6a9e6080176b640a6243c6ba384240..a71ba87c842df0faea0f9a4e71ec69034e95da11 100644
--- a/typo3/sysext/filelist/Classes/ViewHelpers/Link/ClickMenuOnIconViewHelper.php
+++ b/typo3/sysext/filelist/Classes/ViewHelpers/Link/ClickMenuOnIconViewHelper.php
@@ -25,6 +25,7 @@ class ClickMenuOnIconViewHelper extends \TYPO3\CMS\Fluid\Core\ViewHelper\Abstrac
     protected $tagName = 'a';
 
     /**
+     * Defines additional arguments that are allowed for this view helper.
      * @return void
      */
     public function initializeArguments()
diff --git a/typo3/sysext/fluid/Classes/ViewHelpers/Be/Widget/Controller/PaginateController.php b/typo3/sysext/fluid/Classes/ViewHelpers/Be/Widget/Controller/PaginateController.php
index a551f4d94cb22ad76f51bf57f5be46cd26b2d038..24c14fbe02dc7fbedbf6d6c4df90eb63da7190cc 100644
--- a/typo3/sysext/fluid/Classes/ViewHelpers/Be/Widget/Controller/PaginateController.php
+++ b/typo3/sysext/fluid/Classes/ViewHelpers/Be/Widget/Controller/PaginateController.php
@@ -55,6 +55,8 @@ class PaginateController extends \TYPO3\CMS\Fluid\Core\Widget\AbstractWidgetCont
     protected $numberOfObjects = 0;
 
     /**
+     * Initializes necessary variables for all actions.
+     *
      * @return void
      */
     public function initializeAction()
diff --git a/typo3/sysext/fluid/Classes/ViewHelpers/Debug/RenderViewHelper.php b/typo3/sysext/fluid/Classes/ViewHelpers/Debug/RenderViewHelper.php
index 035f37ef9bf40ac0ed3382a270a6666805dbc838..4cbd2c089c105ee7df89d561cf97d23f30ea2e47 100644
--- a/typo3/sysext/fluid/Classes/ViewHelpers/Debug/RenderViewHelper.php
+++ b/typo3/sysext/fluid/Classes/ViewHelpers/Debug/RenderViewHelper.php
@@ -38,6 +38,7 @@ class RenderViewHelper extends AbstractViewHelper
     protected $escapeOutput = false;
 
     /**
+     * Initializes additional arguments available for this view helper.
      * @return void
      */
     public function initializeArguments()
diff --git a/typo3/sysext/fluid/Classes/ViewHelpers/Form/Select/OptgroupViewHelper.php b/typo3/sysext/fluid/Classes/ViewHelpers/Form/Select/OptgroupViewHelper.php
index 1b2c60521dda74cb31e078e1c5548fc268825fca..e6f6938dc78828ca47b05aed1f488a2ee7ce1fc7 100644
--- a/typo3/sysext/fluid/Classes/ViewHelpers/Form/Select/OptgroupViewHelper.php
+++ b/typo3/sysext/fluid/Classes/ViewHelpers/Form/Select/OptgroupViewHelper.php
@@ -28,6 +28,7 @@ class OptgroupViewHelper extends \TYPO3\CMS\Fluid\ViewHelpers\Form\AbstractFormF
     protected $tagName = 'optgroup';
 
     /**
+     * Initialize additional arguments available for this tag view helper.
      * @return void
      */
     public function initializeArguments()
diff --git a/typo3/sysext/fluid/Classes/ViewHelpers/Form/Select/OptionViewHelper.php b/typo3/sysext/fluid/Classes/ViewHelpers/Form/Select/OptionViewHelper.php
index d09a5df85ae6509fef021b79aa7793fe891aba7e..37ac254a7689ebd149e73f4b2d03f2e04b26d5e9 100644
--- a/typo3/sysext/fluid/Classes/ViewHelpers/Form/Select/OptionViewHelper.php
+++ b/typo3/sysext/fluid/Classes/ViewHelpers/Form/Select/OptionViewHelper.php
@@ -28,6 +28,7 @@ class OptionViewHelper extends \TYPO3\CMS\Fluid\ViewHelpers\Form\AbstractFormFie
     protected $tagName = 'option';
 
     /**
+     * Initialize additional arguments available for this tag view helper.
      * @return void
      */
     public function initializeArguments()
diff --git a/typo3/sysext/fluid/Classes/ViewHelpers/Widget/Controller/AutocompleteController.php b/typo3/sysext/fluid/Classes/ViewHelpers/Widget/Controller/AutocompleteController.php
index 17d516d6c7e961b6b033af5e12fb77d51b1d2d80..a8c558389c34dda92b625fbca56190210a420aee 100644
--- a/typo3/sysext/fluid/Classes/ViewHelpers/Widget/Controller/AutocompleteController.php
+++ b/typo3/sysext/fluid/Classes/ViewHelpers/Widget/Controller/AutocompleteController.php
@@ -20,6 +20,8 @@ namespace TYPO3\CMS\Fluid\ViewHelpers\Widget\Controller;
 class AutocompleteController extends \TYPO3\CMS\Fluid\Core\Widget\AbstractWidgetController
 {
     /**
+     * Simply assigns the ID of the widget.
+     *
      * @return void
      */
     public function indexAction()
diff --git a/typo3/sysext/fluid/Classes/ViewHelpers/Widget/Controller/PaginateController.php b/typo3/sysext/fluid/Classes/ViewHelpers/Widget/Controller/PaginateController.php
index 55603593018344ee1c83fe7065b0bdb34da98b97..26f558a8e980a4ad1129c092baae64123256842c 100644
--- a/typo3/sysext/fluid/Classes/ViewHelpers/Widget/Controller/PaginateController.php
+++ b/typo3/sysext/fluid/Classes/ViewHelpers/Widget/Controller/PaginateController.php
@@ -66,6 +66,7 @@ class PaginateController extends AbstractWidgetController
     protected $displayRangeEnd = null;
 
     /**
+     * Initializes the current information on which page the visitor is.
      * @return void
      */
     public function initializeAction()
diff --git a/typo3/sysext/form/Classes/Domain/Model/FormElements/DatePicker.php b/typo3/sysext/form/Classes/Domain/Model/FormElements/DatePicker.php
index 3dc273c82dbbf22462cb1d14e239c6d82d0fa15b..ebf32ae1079728681e7bf07a6b34ce49ab24ba77 100644
--- a/typo3/sysext/form/Classes/Domain/Model/FormElements/DatePicker.php
+++ b/typo3/sysext/form/Classes/Domain/Model/FormElements/DatePicker.php
@@ -26,6 +26,7 @@ class DatePicker extends AbstractFormElement
 {
 
     /**
+     * Initializes the Form Element by setting the data type to "DateTime"
      * @return void
      * @internal
      */
diff --git a/typo3/sysext/form/Classes/Domain/Model/FormElements/FileUpload.php b/typo3/sysext/form/Classes/Domain/Model/FormElements/FileUpload.php
index f5885e3e28b0fd524358aa238839669a3b32d70f..480118fc177aea69c6ebe0ce417c9c540eb5b5b9 100644
--- a/typo3/sysext/form/Classes/Domain/Model/FormElements/FileUpload.php
+++ b/typo3/sysext/form/Classes/Domain/Model/FormElements/FileUpload.php
@@ -26,6 +26,7 @@ class FileUpload extends AbstractFormElement
 {
 
     /**
+     * Initializes the Form Element by setting the data type to a Extbase File Reference
      * @return void
      * @internal
      */
diff --git a/typo3/sysext/form/Classes/Domain/Runtime/FormRuntime.php b/typo3/sysext/form/Classes/Domain/Runtime/FormRuntime.php
index cd7a6a3db35e3bef5bc04c93bf353cc847eb5d42..501d5474315bf151b13202c7f6faf9120d7361dc 100644
--- a/typo3/sysext/form/Classes/Domain/Runtime/FormRuntime.php
+++ b/typo3/sysext/form/Classes/Domain/Runtime/FormRuntime.php
@@ -187,6 +187,7 @@ class FormRuntime implements RootRenderableInterface, \ArrayAccess
     }
 
     /**
+     * Initializes the current state of the form, based on the request
      * @return void
      */
     protected function initializeFormStateFromRequest()
@@ -201,6 +202,7 @@ class FormRuntime implements RootRenderableInterface, \ArrayAccess
     }
 
     /**
+     * Initializes the current page data based on the current request, also modifiable by a hook
      * @return void
      */
     protected function initializeCurrentPageFromRequest()
@@ -261,6 +263,8 @@ class FormRuntime implements RootRenderableInterface, \ArrayAccess
     }
 
     /**
+     * Checks if the honey pot is active, and adds a validator if so.
+     *
      * @return void
      */
     protected function initializeHoneypotFromRequest()
@@ -288,6 +292,8 @@ class FormRuntime implements RootRenderableInterface, \ArrayAccess
     }
 
     /**
+     * Renders a hidden field if the honey pot is active.
+     *
      * @return void
      */
     protected function renderHoneypot()
@@ -396,6 +402,7 @@ class FormRuntime implements RootRenderableInterface, \ArrayAccess
     }
 
     /**
+     * Runs throuh all validations
      * @return void
      */
     protected function processSubmittedFormValues()
diff --git a/typo3/sysext/frontend/Classes/DataProcessing/MenuProcessor.php b/typo3/sysext/frontend/Classes/DataProcessing/MenuProcessor.php
index f13320278ee4fb933a9cbab1ecee015dfcf86165..d95596a04b650047ccc09cd0d36f6d45d6104a77 100644
--- a/typo3/sysext/frontend/Classes/DataProcessing/MenuProcessor.php
+++ b/typo3/sysext/frontend/Classes/DataProcessing/MenuProcessor.php
@@ -292,6 +292,7 @@ class MenuProcessor implements DataProcessorInterface
     }
 
     /**
+     * Prepare configuration for a certain menu level in the hierarchy
      * @return void
      */
     public function prepareLevelConfiguration()
@@ -307,6 +308,7 @@ class MenuProcessor implements DataProcessorInterface
     }
 
     /**
+     * Prepare the configuration when rendering a language menu
      * @return void
      */
     public function prepareLevelLanguageConfiguration()
@@ -338,6 +340,8 @@ class MenuProcessor implements DataProcessorInterface
     }
 
     /**
+     * Build the menu configuration so it can be treated by HMENU cObject
+     *
      * @return void
      */
     public function buildConfiguration()
diff --git a/typo3/sysext/impexp/Classes/Controller/ImportExportController.php b/typo3/sysext/impexp/Classes/Controller/ImportExportController.php
index 888bd1fbf424c1d5db418156db9f37b78777b630..b3f8e675ff3a7510f26272f2189c534cb15e01ae 100644
--- a/typo3/sysext/impexp/Classes/Controller/ImportExportController.php
+++ b/typo3/sysext/impexp/Classes/Controller/ImportExportController.php
@@ -156,6 +156,8 @@ class ImportExportController extends BaseScriptClass
     }
 
     /**
+     * Initializes the module and defining necessary variables for this module to run.
+     *
      * @return void
      */
     public function init()
diff --git a/typo3/sysext/indexed_search/Classes/ViewHelpers/Format/FlagValueViewHelper.php b/typo3/sysext/indexed_search/Classes/ViewHelpers/Format/FlagValueViewHelper.php
index a48216cc19cffb66a5394c67f67a959be0b24866..d036aed591e67ab9ed5339e64f5c0db133ead5b0 100644
--- a/typo3/sysext/indexed_search/Classes/ViewHelpers/Format/FlagValueViewHelper.php
+++ b/typo3/sysext/indexed_search/Classes/ViewHelpers/Format/FlagValueViewHelper.php
@@ -26,6 +26,7 @@ class FlagValueViewHelper extends AbstractViewHelper
     use CompileWithRenderStatic;
 
     /**
+     * Sets up the needed arguments for this View Helper.
      * @return void
      */
     public function initializeArguments()
diff --git a/typo3/sysext/install/Classes/Controller/Action/Step/AbstractStepAction.php b/typo3/sysext/install/Classes/Controller/Action/Step/AbstractStepAction.php
index d745366236b1d6b516794e32d6c3949e832d750b..7403dcc7ed6ffc86a9d5a057e6a768c416dc4ea2 100644
--- a/typo3/sysext/install/Classes/Controller/Action/Step/AbstractStepAction.php
+++ b/typo3/sysext/install/Classes/Controller/Action/Step/AbstractStepAction.php
@@ -63,6 +63,8 @@ abstract class AbstractStepAction extends \TYPO3\CMS\Install\Controller\Action\A
     }
 
     /**
+     * Define the steps to the view.
+     *
      * @return void
      */
     protected function assignSteps()
diff --git a/typo3/sysext/recordlist/Classes/Browser/DatabaseBrowser.php b/typo3/sysext/recordlist/Classes/Browser/DatabaseBrowser.php
index 72cd58aba875f66ef95c87604e1ec09f704a7e37..67c9ec91f61cfd3f0267714c95bac3d751c5a118 100644
--- a/typo3/sysext/recordlist/Classes/Browser/DatabaseBrowser.php
+++ b/typo3/sysext/recordlist/Classes/Browser/DatabaseBrowser.php
@@ -158,6 +158,7 @@ class DatabaseBrowser extends AbstractElementBrowser implements ElementBrowserIn
     }
 
     /**
+     * If the current Backend User has set a temporary DB mount, it is stored to her/his UC.
      * @return void
      */
     protected function setTemporaryDbMounts()
diff --git a/typo3/sysext/recordlist/Classes/Browser/FileBrowser.php b/typo3/sysext/recordlist/Classes/Browser/FileBrowser.php
index 472e87e8cc177548dd38959825282d738abee92a..6c866546222cbdfb98ae2a0713fa6720eb6901ff 100644
--- a/typo3/sysext/recordlist/Classes/Browser/FileBrowser.php
+++ b/typo3/sysext/recordlist/Classes/Browser/FileBrowser.php
@@ -67,6 +67,7 @@ class FileBrowser extends AbstractElementBrowser implements ElementBrowserInterf
     protected $fileRepository;
 
     /**
+     * Loads additional JavaScript
      * @return void
      */
     protected function initialize()
@@ -77,6 +78,7 @@ class FileBrowser extends AbstractElementBrowser implements ElementBrowserInterf
     }
 
     /**
+     * Checks additional GET/POST requests
      * @return void
      */
     protected function initVariables()
diff --git a/typo3/sysext/recordlist/Classes/Browser/FolderBrowser.php b/typo3/sysext/recordlist/Classes/Browser/FolderBrowser.php
index 304af25b211d3e319a241734121dbdc2ea8da180..07f70baf7946e11eb98ecd3646198cc3e4261b6d 100644
--- a/typo3/sysext/recordlist/Classes/Browser/FolderBrowser.php
+++ b/typo3/sysext/recordlist/Classes/Browser/FolderBrowser.php
@@ -38,6 +38,7 @@ class FolderBrowser extends AbstractElementBrowser implements ElementBrowserInte
     protected $expandFolder;
 
     /**
+     * Adds additional JavaScript modules
      * @return void
      */
     protected function initialize()
@@ -51,6 +52,7 @@ class FolderBrowser extends AbstractElementBrowser implements ElementBrowserInte
     }
 
     /**
+     * Checks for an additional request parameter
      * @return void
      */
     protected function initVariables()
diff --git a/typo3/sysext/recordlist/Classes/LinkHandler/AbstractLinkHandler.php b/typo3/sysext/recordlist/Classes/LinkHandler/AbstractLinkHandler.php
index af52262f2cc3207152f8889e57445f99275dc684..e7735acfd1d3bff0ee44b7c5999d1b7b917c7bd4 100644
--- a/typo3/sysext/recordlist/Classes/LinkHandler/AbstractLinkHandler.php
+++ b/typo3/sysext/recordlist/Classes/LinkHandler/AbstractLinkHandler.php
@@ -113,6 +113,7 @@ abstract class AbstractLinkHandler
     }
 
     /**
+     * Sets a DB mount and stores it in the currently defined backend user in her/his uc
      * @return void
      */
     protected function setTemporaryDbMounts()
diff --git a/typo3/sysext/recordlist/Classes/LinkHandler/PageLinkHandler.php b/typo3/sysext/recordlist/Classes/LinkHandler/PageLinkHandler.php
index 7f9231cdad0a5d2fad4b6dfa75d30a220c463b48..31561585cdcd6f27d0e3d5b1d0f0db45e87412d0 100644
--- a/typo3/sysext/recordlist/Classes/LinkHandler/PageLinkHandler.php
+++ b/typo3/sysext/recordlist/Classes/LinkHandler/PageLinkHandler.php
@@ -223,6 +223,7 @@ class PageLinkHandler extends AbstractLinkHandler implements LinkHandlerInterfac
     }
 
     /**
+     * Sets a DB mount and stores it in the currently defined backend user in her/his uc
      * @return void
      */
     protected function setTemporaryDbMounts()
diff --git a/typo3/sysext/rtehtmlarea/Classes/Controller/ParseHtmlController.php b/typo3/sysext/rtehtmlarea/Classes/Controller/ParseHtmlController.php
index 38c312d0956529cfe961c3ed3d3e86864c0e2195..d9461775a920777cfb4090c54dc8f89c5de229b7 100644
--- a/typo3/sysext/rtehtmlarea/Classes/Controller/ParseHtmlController.php
+++ b/typo3/sysext/rtehtmlarea/Classes/Controller/ParseHtmlController.php
@@ -68,6 +68,8 @@ class ParseHtmlController
     }
 
     /**
+     * Initializes necessary parameters before calling the actual main action.
+     *
      * @return void
      */
     public function init()
diff --git a/typo3/sysext/rtehtmlarea/Classes/Controller/UserElementsController.php b/typo3/sysext/rtehtmlarea/Classes/Controller/UserElementsController.php
index 32b82b21c9a6d9ba09dcd8059c041e3e87a1f123..c0f606d8bc6aa876f82cf110106189194c8f8571 100644
--- a/typo3/sysext/rtehtmlarea/Classes/Controller/UserElementsController.php
+++ b/typo3/sysext/rtehtmlarea/Classes/Controller/UserElementsController.php
@@ -63,6 +63,7 @@ class UserElementsController
     }
 
     /**
+     * Initializes necessary parameters before calling the actual main action.
      * @return void
      */
     public function init()