Create and use a wrapper class in java

[fredvs]

Hello ;-)
I have a very-well working Java application.
That application uses a native library.
That native library use callback methods from main java application.

I want to create a independent wrapper-class that could be used be other applications.

How can i do that and how to code for other application to use that wrapper-class ?

PS : Note that the callback methods from main java application do call to native methods...

Here the working code :

    public class test {
    
        // The native library declarations. //
    // => how to have a independant class ? //
      public static native void nativemethod1(String t);
      public static native void nativemethod2(int i, int j);
      public static native void nativemethod3();
      static {System.loadLibrary("mylib");}  
     ...
    
    // The callback methods used by library //
      public static void method1() // callback used by nativemethod1
       { nativemethod3() ; } 
      public static void method2() // callback used by nativemethod2
       { nativemethod1("Hello") ; } 
      public static void method3() // callback used by nativemethod3
       { nativemethod1(1,2) ; } 
     ...
    
    // The main application //
      public static void main(String[] args) 
      {
      nativemethod1();
      nativemethod2();
      nativemethod3();
     ...
      }
    }

I would do a separate class like that, that could be accessed by other Java application :

    public class TheWrapper {
    // The native library declarations. //
    // => how to have a independant class ? //
      public static native void nativemethod1(String t);
      public static native void nativemethod2(int i, int j);
      public static native void nativemethod3();
      static {System.loadLibrary("mylib");}  
     ...
    }

But how must i do to use that wrapper inside the other java applications ?

Many thanks.

Fred.