diff --git a/bundles/org.eclipse.text.quicksearch/META-INF/MANIFEST.MF b/bundles/org.eclipse.text.quicksearch/META-INF/MANIFEST.MF
index 10968a2e4a0..a45f16b13a1 100644
--- a/bundles/org.eclipse.text.quicksearch/META-INF/MANIFEST.MF
+++ b/bundles/org.eclipse.text.quicksearch/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %pluginName
 Bundle-SymbolicName: org.eclipse.text.quicksearch;singleton:=true
-Bundle-Version: 1.3.200.qualifier
+Bundle-Version: 1.3.300.qualifier
 Bundle-Activator: org.eclipse.text.quicksearch.internal.ui.QuickSearchActivator
 Require-Bundle: org.eclipse.ui;bundle-version="[3.113.0,4.0.0)",
  org.eclipse.core.resources;bundle-version="[3.13.0,4.0.0)",
diff --git a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/LineItem.java b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/LineItem.java
index d51305e2e59..792f3d1082c 100644
--- a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/LineItem.java
+++ b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/LineItem.java
@@ -80,18 +80,22 @@ public int hashCode() {
 
 	@Override
 	public boolean equals(Object obj) {
-		if (this == obj)
+		if (this == obj) {
 			return true;
-		if (obj == null)
+		}
+		if (obj == null) {
 			return false;
-		if (getClass() != obj.getClass())
+		}
+		if (getClass() != obj.getClass()) {
 			return false;
+		}
 		LineItem other = (LineItem) obj;
 		if (!Objects.equals(f, other.f)) {
 			return false;
 		}
-		if (lineNumber != other.lineNumber)
+		if (lineNumber != other.lineNumber) {
 			return false;
+		}
 		return true;
 	}
 
diff --git a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/QuickTextQuery.java b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/QuickTextQuery.java
index 552912ab95c..1a33745c4d8 100644
--- a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/QuickTextQuery.java
+++ b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/QuickTextQuery.java
@@ -46,8 +46,8 @@ public int getOffset() {
 		}
 	}
 
-	private boolean caseInsensitive;
-	private String orgPattern; //Original pattern case preserved even if search is case insensitive.
+	private final boolean caseInsensitive;
+	private final String orgPattern; //Original pattern case preserved even if search is case insensitive.
 	final Pattern pattern;
 
 	/**
diff --git a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/QuickTextSearcher.java b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/QuickTextSearcher.java
index 31a1431c75f..87f963aefe0 100644
--- a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/QuickTextSearcher.java
+++ b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/QuickTextSearcher.java
@@ -53,7 +53,7 @@ public class QuickTextSearcher {
 	/**
 	 * Scheduling rule used by Jobs that work on the matches collection.
 	 */
-	private ISchedulingRule matchesRule = new LightSchedulingRule("QuickSearchMatchesRule"); //$NON-NLS-1$
+	private final ISchedulingRule matchesRule = new LightSchedulingRule("QuickSearchMatchesRule"); //$NON-NLS-1$
 
 	private final SearchInFilesWalker walker;
 	private IncrementalUpdateJob incrementalUpdate;
diff --git a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/preferences/QuickSearchPreferences.java b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/preferences/QuickSearchPreferences.java
index b10f3594bb3..952bbd64568 100644
--- a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/preferences/QuickSearchPreferences.java
+++ b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/preferences/QuickSearchPreferences.java
@@ -36,7 +36,7 @@ public class QuickSearchPreferences {
 	public static final String MAX_RESULTS = "QuickTextSearcher.MAX_RESULTS"; //$NON-NLS-1$
 	private static boolean initializedDefaults;
 
-	private IPreferenceStore store;
+	private final IPreferenceStore store;
 
 	public QuickSearchPreferences(IPreferenceStore preferenceStore) {
 		this.store = preferenceStore;
diff --git a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/priority/PrioriTree.java b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/priority/PrioriTree.java
index 5dadd818f1e..676d388533d 100644
--- a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/priority/PrioriTree.java
+++ b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/core/priority/PrioriTree.java
@@ -59,7 +59,7 @@ private static void debug(String string) {
 	 * <p>
 	 * Level is used to easily check whether a node lookup returned an exact matching node or an ancestor.
 	 */
-	private int level;
+	private final int level;
 
 	/**
 	 * Priority assigned to any path lookup that ends here.
diff --git a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/ui/QuickSearchContext.java b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/ui/QuickSearchContext.java
index 5c6b5e7a849..53856ccb985 100644
--- a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/ui/QuickSearchContext.java
+++ b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/ui/QuickSearchContext.java
@@ -54,7 +54,7 @@ public class QuickSearchContext {
 	 */
 	private static Collection<IFile> lastOpenFiles = Arrays.asList(); //Empty list to start with.
 
-	private IWorkbenchWindow window;
+	private final IWorkbenchWindow window;
 
 	public QuickSearchContext(IWorkbenchWindow window) {
 		this.window = window;
@@ -163,16 +163,14 @@ private Collection<IResource> getSelectedResources() {
 		}
 		ISelectionService selectionService = window.getSelectionService();
 		ISelection selection = selectionService.getSelection();
-		if (selection instanceof IStructuredSelection) {
-			IStructuredSelection structuredSelection = (IStructuredSelection) selection;
+		if (selection instanceof IStructuredSelection structuredSelection) {
 			if (!structuredSelection.isEmpty()) {
 				Object[] elements = structuredSelection.toArray();
 				List<IResource> resources = new ArrayList<>(elements.length);
 				for (Object e : elements) {
 					if (e instanceof IResource) {
 						resources.add((IResource) e);
-					} else if (e instanceof IAdaptable) {
-						IAdaptable ae = (IAdaptable) e;
+					} else if (e instanceof IAdaptable ae) {
 						IResource r = ae.getAdapter(IResource.class);
 						if (r!=null) {
 							resources.add(r);
diff --git a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/ui/QuickSearchDialog.java b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/ui/QuickSearchDialog.java
index 61f692f8b30..a575f4c6ca9 100644
--- a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/ui/QuickSearchDialog.java
+++ b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/ui/QuickSearchDialog.java
@@ -157,7 +157,7 @@ public class QuickSearchDialog extends SelectionStatusDialog {
 
 	public static final Styler HIGHLIGHT_STYLE = org.eclipse.search.internal.ui.text.DecoratingFileSearchLabelProvider.HIGHLIGHT_STYLE;
 
-	private UIJob refreshJob = UIJob.create(Messages.QuickSearchDialog_RefreshJob,
+	private final UIJob refreshJob = UIJob.create(Messages.QuickSearchDialog_RefreshJob,
 			(ICoreRunnable) m -> refreshWidgets());
 
 	protected void openSelection() {
@@ -358,7 +358,7 @@ public void update(ViewerCell cell) {
 
 	private MenuManager contextMenuManager;
 
-	private boolean multi;
+	private final boolean multi;
 
 	private ToolBar toolBar;
 
@@ -366,7 +366,7 @@ public void update(ViewerCell cell) {
 
 	private Label progressLabel;
 
-	private ContentProvider contentProvider;
+	private final ContentProvider contentProvider;
 
 	private String initialPatternText;
 
@@ -393,14 +393,14 @@ public void update(ViewerCell cell) {
 	private ToggleKeepOpenAction toggleKeepOpenAction;
 
 
-	private QuickSearchContext context;
+	private final QuickSearchContext context;
 
 
 	private SashForm sashForm;
 
 	private Label headerLabel;
 
-	private IWorkbenchWindow window;
+	private final IWorkbenchWindow window;
 	private Combo searchIn;
 	private Label listLabel;
 
@@ -570,10 +570,12 @@ public boolean close() {
 			showViewHandler.getHandler().dispose();
 			showViewHandler = null;
 		}
-		if (menuManager != null)
+		if (menuManager != null) {
 			menuManager.dispose();
-		if (contextMenuManager != null)
+		}
+		if (contextMenuManager != null) {
 			contextMenuManager.dispose();
+		}
 		storeDialog(getDialogSettings());
 		if (searcher!=null) {
 			searcher.cancel();
@@ -956,7 +958,7 @@ public void keyPressed(KeyEvent e) {
 		});
 
 		createDetailsArea(sashForm);
-		sashForm.setWeights(new int[] {5,2});
+		sashForm.setWeights(5, 2);
 
 		applyDialogFont(content);
 
@@ -1512,7 +1514,7 @@ private void applyPathMatcher() {
 	 */
 	private class ContentProvider implements IStructuredContentProvider, ILazyContentProvider {
 
-		private List items;
+		private final List items;
 		private Comparator<LineItem> comparator;
 		/**
 		 * Creates new instance of <code>ContentProvider</code>.
diff --git a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/ui/QuickSearchQuickAccessComputer.java b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/ui/QuickSearchQuickAccessComputer.java
index 552bf46ccd4..ba16d65c99d 100644
--- a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/ui/QuickSearchQuickAccessComputer.java
+++ b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/ui/QuickSearchQuickAccessComputer.java
@@ -35,7 +35,7 @@ public class QuickSearchQuickAccessComputer extends QuickTextSearchRequestor imp
 
 	private static final int MAX_ENTRIES = 20;
 	private static final long TIMEOUT = 200;
-	private PriorityFunction priorities;
+	private final PriorityFunction priorities;
 
 	public QuickSearchQuickAccessComputer() {
 		priorities = new QuickSearchContext(PlatformUI.getWorkbench().getActiveWorkbenchWindow()).createPriorityFun();
diff --git a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/util/LineReader.java b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/util/LineReader.java
index b74a174982e..4a7151452d4 100644
--- a/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/util/LineReader.java
+++ b/bundles/org.eclipse.text.quicksearch/src/org/eclipse/text/quicksearch/internal/util/LineReader.java
@@ -48,7 +48,7 @@ public LineReader(Reader reader, int maxLineLength) {
 	}
 
 
-	private StringBuilder line = new StringBuilder(EXPECTED_LINE_LENGTH);
+	private final StringBuilder line = new StringBuilder(EXPECTED_LINE_LENGTH);
 
 	private final int maxLineLength;
 	private int lineOffset = -1; //Start pos of last line read.