Java ClassPath Add addToClassPath(String s)

Description

add To Class Path

License

Open Source License

Declaration

public static void addToClassPath(String s) throws IOException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.File;

import java.io.IOException;

import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;

public class Main {
    public static void addToClassPath(String s) throws IOException {
        File f = new File(s);
        addToClassPath(f);/*w  ww . j a  v a 2  s. c  o m*/
    }

    public static void addToClassPath(File f) throws IOException {
        addToClassPath(f.toURL());
    }

    public static void addToClassPath(URL u) throws IOException {

        URLClassLoader sysloader = (URLClassLoader) ClassLoader.getSystemClassLoader();
        Class sysclass = URLClassLoader.class;

        try {
            Method method = sysclass.getDeclaredMethod("addURL", new Class[] { URL.class });
            method.setAccessible(true);
            method.invoke(sysloader, new Object[] { u });
        } catch (Throwable t) {
            t.printStackTrace();
            throw new IOException("Error, could not add URL to system classloader");
        }

    }
}

Related

1. addDirToClasspath(File directory)
2. addPathToClassPath(String s)
3. addToClasspath(File f)
4. addToClassPath(File file)
5. addToClasspath(File file)
6. addToClassPath(Vector cpV, String dir)