Get Generic Exception Types in Java

import static java.lang.System.out;
//  w w  w.j  a v  a  2s.  c om
import java.lang.reflect.Method;
import java.lang.reflect.Type;

public class Main {
  public static void main(String... args) throws Exception {
    String fmt = "%24s: %s%n";
    Class<?> c = MethodSpy.class;
    Method[] allMethods = c.getDeclaredMethods();
    for (Method m : allMethods) {
      if (!m.getName().equals(args[1])) {
        continue;
      }
      out.format("%s%n", m.toGenericString());

      Class<?>[] xType = m.getExceptionTypes();
      Type[] gxType = m.getGenericExceptionTypes();
      for (int i = 0; i < xType.length; i++) {
        out.format(fmt, "ExceptionType", xType[i]);
        out.format(fmt, "GenericExceptionType", gxType[i]);
      }
    }
  }
}

class MethodSpy {

  // for the morbidly curious
  <E extends RuntimeException> void genericThrow() throws E {
  }

}