Fix example class destruction

Author: SpaiR

imgui-lwjgl3/src/test/java/ImGuiGlfwExample.java

@@ -50,7 +50,7 @@ public final class ImGuiGlfwExample {
     private final double[] mousePosY = new double[1];
 
     // Mouse cursors provided by GLFW
-    private final long[] mouseCursors = new long[ImGuiMouseCursor.COUNT];
+    private final long[] mouseCursors = new long[ImGuiMouseCursor.COUNT - 1]; // Minus 1, because GLFW 3.4 doesn't provide GLFW_NOT_ALLOWED_CURSOR
 
     // LWJGL3 rendered itself (SHOULD be initialized)
     private final ImGuiImplGl3 imGuiGl3 = new ImGuiImplGl3();