diff --git a/jme3-examples/src/main/java/jme3test/light/TestIssue2209.java b/jme3-examples/src/main/java/jme3test/light/TestIssue2209.java
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+++ b/jme3-examples/src/main/java/jme3test/light/TestIssue2209.java
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2024 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package jme3test.light;
+
+import com.jme3.app.SimpleApplication;
+import com.jme3.light.DirectionalLight;
+import com.jme3.renderer.queue.RenderQueue;
+import com.jme3.scene.Node;
+import com.jme3.shadow.DirectionalLightShadowRenderer;
+import java.util.logging.Logger;
+import jme3test.bullet.TestIssue1125;
+
+/**
+ * Test case for JME issue #2209: AssertionError caused by shadow renderer.
+ *
+ * <p>For a valid test, assertions must be enabled.
+ *
+ * <p>If successful, the Oto model will appear. If unsuccessful, the application
+ * with crash with an {@code AssertionError} in {@code GLRenderer}.
+ *
+ * @author Stephen Gold sgold@sonic.net
+ */
+public class TestIssue2209 extends SimpleApplication {
+    /**
+     * message logger for debugging this class
+     */
+    final public static Logger logger
+            = Logger.getLogger(TestIssue1125.class.getName());
+
+    /**
+     * Main entry point for the TestIssue2209 application.
+     */
+    public static void main(String[] args) {
+        new TestIssue2209().start();
+    }
+
+    /**
+     * Initializes this application, adding Oto, a light, and a shadow renderer.
+     */
+    @Override
+    public void simpleInitApp() {
+        if (!areAssertionsEnabled()) {
+            throw new IllegalStateException(
+                    "For a valid test, assertions must be enabled.");
+        }
+
+        DirectionalLight dl = new DirectionalLight();
+        rootNode.addLight(dl);
+
+        DirectionalLightShadowRenderer dlsr
+                = new DirectionalLightShadowRenderer(assetManager, 4_096, 3);
+        dlsr.setLight(dl);
+        viewPort.addProcessor(dlsr);
+
+        Node player = (Node) assetManager.loadModel("Models/Oto/Oto.mesh.xml");
+        player.setShadowMode(RenderQueue.ShadowMode.Cast);
+        rootNode.attachChild(player);
+    }
+
+    /**
+     * Tests whether assertions are enabled.
+     *
+     * @return true if enabled, otherwise false
+     */
+    private static boolean areAssertionsEnabled() {
+        boolean enabled = false;
+        assert enabled = true; // Note: intentional side effect.
+
+        return enabled;
+    }
+}