diff --git a/src/main/java/org/olat/core/commons/editor/htmleditor/WysiwygFactory.java b/src/main/java/org/olat/core/commons/editor/htmleditor/WysiwygFactory.java
index 4ece1a0c8b59938fa53ace9e762fd2f97f5dade6..bbe50594acfa3a3d69d45149e527007c2dda9e0f 100644
--- a/src/main/java/org/olat/core/commons/editor/htmleditor/WysiwygFactory.java
+++ b/src/main/java/org/olat/core/commons/editor/htmleditor/WysiwygFactory.java
@@ -62,8 +62,8 @@ public class WysiwygFactory {
 	 *            true: check if file has been created with another tool and
 	 *            warn user about potential data loss; false: ignore other
 	 *            authoring tools
-	 * @param userActivityLogger
-	 *            the userActivity Logger if used
+	 * @param versions
+	 *
 	 * @return
 	 */
 	public static HTMLEditorController createWysiwygController(UserRequest ureq, WindowControl wControl,
@@ -74,17 +74,9 @@ public class WysiwygFactory {
 	public static HTMLEditorController createWysiwygController(UserRequest ureq, WindowControl wControl,
 			VFSContainer rootDir, String filePath, boolean editorCheckEnabled, boolean versions,
 			VFSEdusharingProvider edusharingProvider) {
-		return new HTMLEditorController(ureq, wControl, rootDir, filePath, null, null, editorCheckEnabled, versions,
-				edusharingProvider);
+		return createWysiwygController(ureq, wControl, rootDir, filePath, null, editorCheckEnabled,  versions, edusharingProvider);
 	}
-	
-	public static HTMLEditorController createWysiwygController(
-			UserRequest ureq, WindowControl wControl, VFSContainer rootDir,
-			String filePath, String mediaPath, boolean editorCheckEnabled, boolean versions) {
-		return new HTMLEditorController(ureq, wControl, rootDir, filePath,
-				null, mediaPath, editorCheckEnabled, versions, null);
-	}
-	
+
 	public static HTMLEditorController createWysiwygController(UserRequest ureq, WindowControl wControl,
 			VFSContainer rootDir, String filePath, String mediaPath, boolean editorCheckEnabled, boolean versions,
 			VFSEdusharingProvider edusharingProvider) {
diff --git a/src/main/java/org/olat/core/commons/services/doceditor/wopi/WopiRestHelper.java b/src/main/java/org/olat/core/commons/services/doceditor/wopi/WopiRestHelper.java
index 4642099a7ef1c56c7fba47d7e8f5e859370a7f80..7548b8a3eb2b6ab643e3cd5caddc968ced120968 100644
--- a/src/main/java/org/olat/core/commons/services/doceditor/wopi/WopiRestHelper.java
+++ b/src/main/java/org/olat/core/commons/services/doceditor/wopi/WopiRestHelper.java
@@ -39,11 +39,6 @@ public class WopiRestHelper {
 		return requestHeader != null && !requestHeader.isEmpty()? requestHeader.get(0): null;
 	}
 
-	public static String getLastModifiedAsIso8601(File file) {
-		long lastModified = file.lastModified();
-		return Instant.ofEpochMilli(lastModified).toString();
-	}
-	
 	public static String getAsIso8601(Date date) {
 		long lastModified = date.getTime();
 		return Instant.ofEpochMilli(lastModified).toString();
diff --git a/src/main/java/org/olat/core/gui/components/Window.java b/src/main/java/org/olat/core/gui/components/Window.java
index ae1568993509e105c60283f5d0e4eaebc6b720e0..601014bec2b65ebbc0d2c136bf745e6eab6e0c2e 100644
--- a/src/main/java/org/olat/core/gui/components/Window.java
+++ b/src/main/java/org/olat/core/gui/components/Window.java
@@ -195,7 +195,7 @@ public class Window extends AbstractComponent implements CustomCSSDelegate {
 	
 	/**
 	 * @param name
-	 * @param chiefController
+	 * @param wbackoffice
 	 */
 	public Window(String name, String csrfToken, WindowBackOfficeImpl wbackoffice) {
 		super(name);
@@ -221,7 +221,7 @@ public class Window extends AbstractComponent implements CustomCSSDelegate {
 
 	/**
 	 * 
-	 * @param guiThemeBaseUri the URI of the base folder of the current Gui theme, r.g.  'http://www.myserver.com/olat/raw/themes/default/'
+	 * @param guiTheme the URI of the base folder of the current Gui theme, r.g.  'http://www.myserver.com/olat/raw/themes/default/'
 	 */
 	public void setGuiTheme(Theme guiTheme) {
 		this.guiTheme = guiTheme;
@@ -241,8 +241,9 @@ public class Window extends AbstractComponent implements CustomCSSDelegate {
 		return title;
 	}
 
-	/** 
-	 * @param title The new title of this window (for browser history)
+	/**
+	 * @param translator
+	 * @param newTitle The new title of this window (for browser history)
 	 */
 	public void setTitle(Translator translator, String newTitle) {
 		this.title = translator.translate("page.appname") + " - " + newTitle;
@@ -1159,9 +1160,7 @@ public class Window extends AbstractComponent implements CustomCSSDelegate {
 	 * 
 	 * @param win the window id the new url
 	 * @param timestampId
-	 * @param componentId
 	 * @param moduleUri
-	 * @param bc the businesscontrolpath
 	 * @return the new (relative) url as a string
 	 */
 	public String buildURIFor(Window win, String timestampId, String moduleUri) {
diff --git a/src/main/java/org/olat/core/gui/control/generic/wizard/WizardController.java b/src/main/java/org/olat/core/gui/control/generic/wizard/WizardController.java
index 2d0d3728bb491ead7d14061bd8d76d82a101ad73..c587030c742e44d6e6019bea316d0da65b44bbfc 100644
--- a/src/main/java/org/olat/core/gui/control/generic/wizard/WizardController.java
+++ b/src/main/java/org/olat/core/gui/control/generic/wizard/WizardController.java
@@ -75,12 +75,6 @@ public class WizardController extends BasicController {
 		wizardVC.put("wic", wic.getInitialComponent());
 		putInitialPanel(wizardVC);
 	}
-	
-	public String getAndRemoveWizardTitle() {
-		String wizardTitle = (String)wizardVC.contextGet("wizardTitle");
-		wizardVC.contextRemove("wizardTitle");
-		return wizardTitle;
-	}
 
 	/**
 	 * @param wizardTitle
@@ -89,15 +83,6 @@ public class WizardController extends BasicController {
 		wizardVC.contextPut("wizardTitle", wizardTitle);
 	}
 
-	/**
-	 * @param stepTitle
-	 * @param component
-	 */
-	public void setBackWizardStep(String stepTitle, Component component) {
-		this.currentStep--;
-		setWizardVcContent(stepTitle, component);
-	}
-	
 	/**
 	 * @param stepTitle
 	 * @param component
diff --git a/src/main/java/org/olat/core/util/ZipUtil.java b/src/main/java/org/olat/core/util/ZipUtil.java
index 12d2edbb0008de624c7a1098c1db958d6a2522cc..c34e63cb2b97dea5ede94b2f5cc4d12ae5d01cbe 100644
--- a/src/main/java/org/olat/core/util/ZipUtil.java
+++ b/src/main/java/org/olat/core/util/ZipUtil.java
@@ -431,76 +431,12 @@ public class ZipUtil {
 		}
 		vfsRepositoryService.updateMetadata(info);
 	}
-	
-	/**
-	 * Check if a file in the zip is already in the path
-	 * @param zipLeaf
-	 * @param targetDir
-	 * @param identity
-	 * @param isAdmin
-	 * @return the list of files which already exist
-	 */
-	public static List<String> checkLockedFileBeforeUnzip(VFSLeaf zipLeaf, VFSContainer targetDir, Identity identity) {
-		List<String> lockedFiles = new ArrayList<>();
-		VFSLockManager vfsLockManager = CoreSpringFactory.getImpl(VFSLockManager.class);
-		
-		try(InputStream in = zipLeaf.getInputStream();
-				ZipInputStream oZip = new ZipInputStream(in)) {
-			// unzip files
-			ZipEntry oEntr = oZip.getNextEntry();
-			while (oEntr != null) {
-				if (oEntr.getName() != null && !oEntr.getName().startsWith(DIR_NAME__MACOSX)) {
-					if (oEntr.isDirectory()) {
-						// skip MacOSX specific metadata directory
-						// directories aren't locked
-						oZip.closeEntry();
-						oEntr = oZip.getNextEntry();
-						continue;
-					} else {
-						// search file
-						VFSContainer createIn = targetDir;
-						String name = oEntr.getName();
-						// check if entry has directories which did not show up as
-						// directories above
-						int dirSepIndex = name.lastIndexOf('/');
-						if (dirSepIndex == -1) {
-							// try it windows style, backslash is also valid format
-							dirSepIndex = name.lastIndexOf('\\');
-						}
-						if (dirSepIndex > 0) {
-							// get subdirs
-							createIn = getAllSubdirs(targetDir, name.substring(0, dirSepIndex), identity, false);
-							if (createIn == null) {
-								//sub directories don't exist, and aren't locked
-								oZip.closeEntry();
-								oEntr = oZip.getNextEntry();
-								continue;
-							}
-							name = name.substring(dirSepIndex + 1);
-						}
-						
-						VFSLeaf newEntry = (VFSLeaf)createIn.resolve(name);
-						if(vfsLockManager.isLockedForMe(newEntry, identity, VFSLockApplicationType.vfs, null)) {
-							lockedFiles.add(name);
-						}
-					}
-				}
-				oZip.closeEntry();
-				oEntr = oZip.getNextEntry();
-			}
-		} catch (IOException e) {
-			return null;
-		}
 
-		return lockedFiles;
-	}
-	
 	/**
 	 * 
 	 * @param zipLeaf
 	 * @param targetDir
 	 * @param identity
-	 * @param roles
 	 * @return
 	 */
 	public static List<String> checkLockedFileBeforeUnzipNonStrict(VFSLeaf zipLeaf, VFSContainer targetDir, Identity identity) {
diff --git a/src/main/java/org/olat/core/util/xml/XMLParser.java b/src/main/java/org/olat/core/util/xml/XMLParser.java
index b237ae9b373f58504a32206cef4285813dfd7048..0f5a51d2c088651a8240280e1f48dd342703cdc8 100644
--- a/src/main/java/org/olat/core/util/xml/XMLParser.java
+++ b/src/main/java/org/olat/core/util/xml/XMLParser.java
@@ -77,18 +77,4 @@ public class XMLParser {
 		return document;
 	}
 
-	/**
-	 * @return entity resolver instance
-	 */
-	public EntityResolver getEntityResolver() {
-		return er;
-	}
-
-	/**
-	 * @param resolver
-	 */
-	public void setEntityResolver(EntityResolver resolver) {
-		er = resolver;
-	}
-
 }
\ No newline at end of file
diff --git a/src/main/java/org/olat/course/nodes/video/VideoEditController.java b/src/main/java/org/olat/course/nodes/video/VideoEditController.java
index 0f4c60e7721dd572a138e659e7828fbe9ca4191e..8306f361c1b5cd007d68052163c888a73c3cb502 100644
--- a/src/main/java/org/olat/course/nodes/video/VideoEditController.java
+++ b/src/main/java/org/olat/course/nodes/video/VideoEditController.java
@@ -361,10 +361,6 @@ class VideoOptionsForm extends FormBasicController{
 		initForm(ureq);
 	}
 
-	public boolean isVideoComments() {
-		return videoComments.isSelected(0);
-	}
-
 	@Override
 	protected void formOK(UserRequest ureq) {
 		config.setBooleanEntry(VideoEditController.CONFIG_KEY_COMMENTS, videoComments.isSelected(0));