Java Class Loader getCustomClassloader(List entries)

Description

get Custom Classloader

License

Apache License

Declaration

public static ClassLoader getCustomClassloader(List<String> entries) 

Method Source Code

//package com.java2s;
/*/*from  www.j  av  a2  s  . c o  m*/
 *  Copyright 2008 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.List;

public class Main {
    public static ClassLoader getCustomClassloader(List<String> entries) {
        List<URL> urls = new ArrayList<URL>();
        File file;

        if (entries != null) {
            for (String classPathEntry : entries) {
                file = new File(classPathEntry);
                if (!file.exists()) {
                    throw new RuntimeException(classPathEntry); //$NON-NLS-1$
                }

                try {
                    urls.add(file.toURI().toURL());
                } catch (MalformedURLException e) {
                    // this shouldn't happen, but just in case...
                    throw new RuntimeException(classPathEntry); //$NON-NLS-1$
                }
            }
        }

        ClassLoader parent = Thread.currentThread().getContextClassLoader();

        URLClassLoader ucl = new URLClassLoader(urls.toArray(new URL[urls.size()]), parent);

        return ucl;
    }
}

Related

1. getClassloaderRootDir(Class forClass)
2. getClassLoaders(ClassLoader baseClassLoader)
3. getClassLoaderStack(ClassLoader cl)
4. getClassLocation(Class clazz)
5. getClassLocation(String className)
6. getFileFromClassLoader(String fileName)
7. getFilesByPackgeName(String packageName, File _file, ClassLoader classLoader, List list)
8. getJvmExtClassLoader()
9. getLoadingDir(Class clazz)