release 3.6.2

- OpenRocket
- Warteschlangensimulator
- Nortantis
- QStudio
- Launch4j

.github/workflows/ci.yml

@@ -67,11 +67,10 @@ jobs:
           - 8
           - 17  # LTS
           - 21  # LTS
-          - 23  # latest
         toolchain: [""]
-#        include:
-#          - java: 21
-#            toolchain: 22  # latest
+        include:
+          - java: 21
+            toolchain: 25  # LTS
 
     steps:
       - uses: actions/checkout@v4

CHANGELOG.md

@@ -1,7 +1,7 @@
 FlatLaf Change Log
 ==================
 
-## 3.7-SNAPSHOT
+## 3.6.2
 
 #### New features and improvements
 
@@ -15,6 +15,8 @@ FlatLaf Change Log
 - Tree and List: Fixed painting of rounded drop backgrounds. (issue #1023)
 - Popup: Showing tooltip in inactive window brought that window to front (made
   it active) and potentially hid the previously active window. (issue #1037)
+- Popup: No longer reuse popup windows for menus to avoid immediately closing
+  dialogs on ChromeOS. (issue #1029)
 - macOS: Fixed window "flashing" when switching from a light to a dark theme (or
   vice versa). Especially when using animated theme changer (see
   [FlatLaf Extras](flatlaf-extras)).

README.md

@@ -196,6 +196,8 @@ Applications using FlatLaf
 - ![New](images/new.svg)
   [Zettelkasten](https://github.com/Zettelkasten-Team/Zettelkasten) - knowledge
   management tool
+- ![New](images/new.svg) [QStudio](https://www.timestored.com/qstudio/) - free
+  SQL editor
 
 ### Security
 
@@ -236,6 +238,8 @@ Applications using FlatLaf
   mobile & web platform
 - ![New](images/new.svg) [EduMIPS64](https://github.com/EduMIPS64/edumips64) -
   visual MIPS64 CPU simulator
+- ![New](images/new.svg) [Launch4j](https://launch4j.sourceforge.net/) -
+  cross-platform Java executable wrapper
 
 ### Electrical
 
@@ -281,9 +285,16 @@ Applications using FlatLaf
   from any webnovel and lightnovel site
 - [lectureStudio](https://www.lecturestudio.org/) - digitize your lectures with
   ease
+- ![New](images/new.svg) [Nortantis](https://jandjheydorn.com/nortantis) -
+  fantasy map generator and editor
 
 ### Modelling / Planning
 
+- ![New](images/new.svg) [OpenRocket](https://github.com/openrocket/openrocket) -
+  model-rocketry aerodynamics and trajectory simulation software
+- ![New](images/new.svg)
+  [Warteschlangensimulator](https://github.com/A-Herzog/Warteschlangensimulator) -
+  discrete-event stochastic simulator
 - ![New](images/new.svg) [Gephi](https://github.com/gephi/gephi) - the Open
   Graph Viz Platform
 - [Astah](https://astah.net/) (**commercial**) - create UML, ER Diagram,

flatlaf-core/flatlaf-core-sigtest.txt

@@ -1,5 +1,5 @@
 #Signature file v4.1
-#Version 3.6.1
+#Version 3.6.2
 
 CLSS public abstract interface com.formdev.flatlaf.FlatClientProperties
 fld public final static java.lang.String BUTTON_TYPE = "JButton.buttonType"
@@ -297,6 +297,7 @@ CLSS public abstract interface com.formdev.flatlaf.FlatSystemProperties
 fld public final static java.lang.String ANIMATION = "flatlaf.animation"
 fld public final static java.lang.String MENUBAR_EMBEDDED = "flatlaf.menuBarEmbedded"
 fld public final static java.lang.String NATIVE_LIBRARY_PATH = "flatlaf.nativeLibraryPath"
+fld public final static java.lang.String REUSE_VISIBLE_POPUP_WINDOW = "flatlaf.reuseVisiblePopupWindow"
 fld public final static java.lang.String UI_SCALE = "flatlaf.uiScale"
 fld public final static java.lang.String UI_SCALE_ALLOW_SCALE_DOWN = "flatlaf.uiScale.allowScaleDown"
 fld public final static java.lang.String UI_SCALE_ENABLED = "flatlaf.uiScale.enabled"

flatlaf-core/src/main/java/com/formdev/flatlaf/FlatSystemProperties.java

@@ -16,6 +16,7 @@
 
 package com.formdev.flatlaf;
 
+import javax.swing.JPopupMenu;
 import javax.swing.SwingUtilities;
 import com.formdev.flatlaf.util.UIScale;
 
@@ -147,6 +148,25 @@ public interface FlatSystemProperties
 	 */
 	String USE_ROUNDED_POPUP_BORDER = "flatlaf.useRoundedPopupBorder";
 
+	/**
+	 * Species whether popup windows may be reused without (temporary) hiding them.
+	 * E.g. if "moving" a tooltip to follow the mouse pointer, normally it is necessary
+	 * to hide the tooltip and show it again at the new location, which causes some
+	 * flicker with heavy-weight popup windows that FlatLaf uses on all platforms.
+	 * <p>
+	 * If {@code true}, hiding popup window is deferred for an event cycle,
+	 * which allows reusing still visible popup window and avoids flicker when "moving" the popup.
+	 * <p>
+	 * Note that {@link JPopupMenu} popup windows (menus and combobox lists) are newer reused.
+	 * <p>
+	 * <strong>Allowed Values</strong> {@code false} and {@code true}<br>
+	 * <strong>Default</strong> {@code true}
+	 *
+	 * @since 3.6.2
+	 */
+	String REUSE_VISIBLE_POPUP_WINDOW = "flatlaf.reuseVisiblePopupWindow";
+
+
 	/**
 	 * Specifies whether vertical text position is corrected when UI is scaled on HiDPI screens.
 	 * <p>

flatlaf-core/src/main/java/com/formdev/flatlaf/UIDefaultsLoader.java

@@ -205,30 +205,43 @@ class UIDefaultsLoader
 					if( classLoader != null && !addonClassLoaders.contains( classLoader ) )
 						addonClassLoaders.add( classLoader );
 
+					packageName = packageName.replace( '.', '/' );
 					if( classLoader == null )
 						classLoader = FlatLaf.class.getClassLoader();
 
-					// Get package URL using ClassLoader.getResource(...) because this works
-					// also in named Java modules, even without opening the package in module-info.java.
-					// This extra step is necessary because ClassLoader.getResource("<package>/<file>.properties")
-					// does not work for named Java modules.
-					URL url = classLoader.getResource( packageName.replace( '.', '/' ) );
-					if( url == null ) {
-						LoggingFacade.INSTANCE.logSevere( "FlatLaf: Failed to find package '"
-							+ packageName + "' to load properties files.", null );
-						continue;
-					}
-					String packageUrl = url.toExternalForm();
-					if( !packageUrl.endsWith( "/" ) )
-						packageUrl = packageUrl.concat( "/" );
-
+					boolean found = false;
 					for( Class<?> lafClass : lafClasses ) {
-						URL propertiesUrl = new URL( packageUrl + simpleClassName( lafClass ) + ".properties" );
+						String propertiesName = packageName + '/' + simpleClassName( lafClass ) + ".properties";
+						try( InputStream in = classLoader.getResourceAsStream( propertiesName ) ) {
+							if( in != null ) {
+								properties.load( in );
+								found = true;
+							}
+						}
+					}
 
-						try( InputStream in = propertiesUrl.openStream() ) {
-							properties.load( in );
-						} catch( FileNotFoundException ex ) {
-							// ignore
+					// fallback for named Java modules
+					if( !found ) {
+						// Get package URL using ClassLoader.getResource(...) because this works
+						// also in named Java modules, even without opening the package in module-info.java.
+						// This extra step is necessary because ClassLoader.getResource("<package>/<file>.properties")
+						// does not work for named Java modules.
+						URL url = classLoader.getResource( packageName );
+						if( url == null )
+							continue;
+
+						String packageUrl = url.toExternalForm();
+						if( !packageUrl.endsWith( "/" ) )
+							packageUrl = packageUrl.concat( "/" );
+
+						for( Class<?> lafClass : lafClasses ) {
+							URL propertiesUrl = new URL( packageUrl + simpleClassName( lafClass ) + ".properties" );
+
+							try( InputStream in = propertiesUrl.openStream() ) {
+								properties.load( in );
+							} catch( FileNotFoundException ex ) {
+								// ignore
+							}
 						}
 					}
 				} else if( source instanceof URL ) {

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatPopupFactory.java

@@ -676,8 +676,11 @@ public class FlatPopupFactory
 				return;
 			disposed = true;
 
-			// immediately hide non-heavy weight popups or combobox popups
-			if( !(popupWindow instanceof JWindow) || contents instanceof BasicComboPopup ) {
+			// immediately hide non-heavy weight popups, popup menus and combobox popups
+			// of if system property is false
+			if( !(popupWindow instanceof JWindow) || contents instanceof JPopupMenu ||
+				!FlatSystemProperties.getBoolean( FlatSystemProperties.REUSE_VISIBLE_POPUP_WINDOW, true ) )
+			{
 				hideImpl();
 				return;
 			}

gradle.properties

@@ -14,7 +14,7 @@
 # limitations under the License.
 #
 
-flatlaf.releaseVersion     = 3.6.1
+flatlaf.releaseVersion     = 3.6.2
 flatlaf.developmentVersion = 3.7-SNAPSHOT
 
 org.gradle.parallel = true