diff --git a/test/jdk/javax/swing/JColorChooser/Test4887836.java b/test/jdk/javax/swing/JColorChooser/Test4887836.java
index 4043dbdd88a..82a09c46085 100644
--- a/test/jdk/javax/swing/JColorChooser/Test4887836.java
+++ b/test/jdk/javax/swing/JColorChooser/Test4887836.java
@@ -26,10 +26,12 @@ import java.awt.Font;
 import javax.swing.JColorChooser;
 import javax.swing.UIManager;
 
+import jtreg.SkippedException;
+
 /*
  * @test
  * @bug 4887836
- * @library /java/awt/regtesthelpers
+ * @library /java/awt/regtesthelpers /test/lib
  * @build PassFailJFrame
  * @summary Checks for white area under the JColorChooser Swatch tab
  * @run main/manual Test4887836
@@ -38,6 +40,13 @@ import javax.swing.UIManager;
 public class Test4887836 {
 
     public static void main(String[] args) throws Exception {
+
+        // ColorChooser UI design is different for GTK L&F.
+        // There is no Swatches tab available for GTK L&F, skip the testing.
+        if (UIManager.getLookAndFeel().getName().contains("GTK")) {
+            throw new SkippedException("Test not applicable for GTK L&F");
+        }
+
         String instructions = """
                                 If you do not see white area under the \"Swatches\" tab,
                                 then test passed, otherwise it failed.""";
@@ -45,9 +54,7 @@ public class Test4887836 {
         PassFailJFrame.builder()
                 .title("Test4759306")
                 .instructions(instructions)
-                .rows(5)
                 .columns(40)
-                .testTimeOut(10)
                 .testUI(Test4887836::createColorChooser)
                 .build()
                 .awaitAndCheck();
diff --git a/test/jdk/javax/swing/plaf/basic/BasicSliderUI/bug4419255.java b/test/jdk/javax/swing/plaf/basic/BasicSliderUI/bug4419255.java
new file mode 100644
index 00000000000..eb23901f60d
--- /dev/null
+++ b/test/jdk/javax/swing/plaf/basic/BasicSliderUI/bug4419255.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2001, 2024, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.awt.Color;
+import javax.swing.JColorChooser;
+import javax.swing.UIManager;
+
+import jtreg.SkippedException;
+
+/*
+ * @test
+ * @bug 4419255
+ * @library /java/awt/regtesthelpers /test/lib
+ * @build PassFailJFrame
+ * @summary Tests if Metal Slider's thumb isn't clipped
+ * @run main/manual bug4419255
+ */
+
+public class bug4419255 {
+
+    public static void main(String[] args) throws Exception {
+
+        // ColorChooser UI design is different for GTK L&F.
+        // There is no RGB tab available for GTK L&F, skip the testing.
+        if (UIManager.getLookAndFeel().getName().contains("GTK")) {
+            throw new SkippedException("Test not applicable for GTK L&F");
+        }
+        String instructions = """
+                Choose RGB tab. If sliders' thumbs are painted correctly
+                (top is not clipped, black line is visible),
+                then test passed. Otherwise it failed.""";
+
+        PassFailJFrame.builder()
+                .title("bug4419255")
+                .instructions(instructions)
+                .columns(40)
+                .testUI(bug4419255::createColorChooser)
+                .build()
+                .awaitAndCheck();
+    }
+
+    private static JColorChooser createColorChooser() {
+        return new JColorChooser(Color.BLUE);
+    }
+}