Build: rewrite java code compilation recipe

Every jar sources are now in its respective folder to avoid clutters. Rewrote javac recipe to allow compiling simultaneously.

JavaApp/src/lwjgl/org/lwjgl/glfw/GLFW.java

@@ -815,6 +815,11 @@ public class GLFW
         return invokeP(__functionAddress);
     }
 
+    public static void nglfwGetFramebufferSize(@NativeType("GLFWwindow *") long window, @Nullable @NativeType("int *") long width, @Nullable @NativeType("int *") long height) {
+        memPutInt(width, internalGetWindow(window).width);
+        memPutInt(height, internalGetWindow(window).height);
+    }
+
     public static void glfwGetFramebufferSize(@NativeType("GLFWwindow *") long window, @Nullable @NativeType("int *") IntBuffer width, @Nullable @NativeType("int *") IntBuffer height) {
         if (CHECKS) {
             checkSafe(width, 1);