How to call main() method of a class using reflection in java

Question

When calling the main method of a Java class from another main method using reflection,

Class thisClass = loader.loadClass(packClassName);
Method thisMethod          


        

Answer 1

Perceptions answer looks correct; if you need load from a Jar not in the class path you can use a URL class loader

     try {
        URL[] urls;
        URLClassLoader urlLoader;

        urls = ...;

        urlLoader = new URLClassLoader(urls);

        @SuppressWarnings("rawtypes")
        Class runClass = urlLoader.loadClass(classToRun);

        Object[] arguments = new Object[]{args};
        Method mainMethod = runClass.getMethod("main", String[].class);
        mainMethod.invoke(null, arguments);
      } catch (Exception e) {
        e.printStackTrace();
      }