import rename_pcre_encoder.*; public class rename_pcre_encoder_runme { static { System.loadLibrary("rename_pcre_encoder"); } public static void main(String argv[]) { SomeWidget w = new SomeWidget(); w.putBorderWidth(17); if ( w.getBorderWidth() != 17 ) throw new RuntimeException(String.format("Border with should be 17, not %d", w.getBorderWidth())); } }