private void addClassPath(final URL url) throws IOException {
final URLClassLoader sysloader = (URLClassLoader) ClassLoader.getSystemClassLoader();
final Class<URLClassLoader> sysclass = URLClassLoader.class;
try {
final Method method = sysclass.getDeclaredMethod("addURL", new Class[] {URL.class});
method.setAccessible(true);
method.invoke(sysloader, new Object[] {url});
} catch (final Throwable t) {
t.printStackTrace();
throw new IOException("Error adding " + url + " to system classloader");
}
}
