Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.net.URL;
import java.security.CodeSource;
import java.security.ProtectionDomain;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2005, JBoss Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

public class Main {

    /**
     * Force the given class to be loaded fully.
     * 
     * <p>
     * This method attempts to locate a static method on the given class the
     * attempts to invoke it with dummy arguments in the hope that the virtual
     * machine will prepare the class for the method call and call all of the
     * static class initializers.
     * 
     * @param type
     *          Class to force load.
     * 
     * @throws NullArgumentException
     *           Type is <i>null</i>.
     */
    public static void forceLoad(final Class type) {
        if (type == null)
            System.out.println("Null Argument Exception");

        // don't attempt to force primitives to load
        if (type.isPrimitive())
            return;

        // don't attempt to force java.* classes to load
        String packageName = Classes.getPackageName(type);
        // System.out.println("package name: " + packageName);

        if (packageName.startsWith("java.") || packageName.startsWith("javax.")) {
            return;
        }

        // System.out.println("forcing class to load: " + type);

        try {
            Method methods[] = type.getDeclaredMethods();
            Method method = null;
            for (int i = 0; i < methods.length; i++) {
                int modifiers = methods[i].getModifiers();
                if (Modifier.isStatic(modifiers)) {
                    method = methods[i];
                    break;
                }
            }

            if (method != null) {
                method.invoke(null, (Object[]) null);
            } else {
                type.newInstance();
            }
        } catch (Exception ignore) {
            ignore.printStackTrace();
        }
    }
}