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Old JAXB Runtime module. Contains sources required for runtime processing.
There is a newer version: 4.0.5
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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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package com.sun.xml.bind.v2.bytecode;

/**
 * Class defined for safe calls of getClassLoader methods of any kind (context/system/class
 * classloader. This MUST be package private and defined in every package which 
 * uses such invocations.
 * @author snajper
 */
class SecureLoader {

    static ClassLoader getContextClassLoader() {
        if (System.getSecurityManager() == null) {
            return Thread.currentThread().getContextClassLoader();
        } else {
            return (ClassLoader) java.security.AccessController.doPrivileged(
                    new java.security.PrivilegedAction() {
                        public java.lang.Object run() {
                            return Thread.currentThread().getContextClassLoader();
                        }
                    });
        }
    }

    static ClassLoader getClassClassLoader(final Class c) {
        if (System.getSecurityManager() == null) {
            return c.getClassLoader();
        } else {
            return (ClassLoader) java.security.AccessController.doPrivileged(
                    new java.security.PrivilegedAction() {
                        public java.lang.Object run() {
                            return c.getClassLoader();
                        }
                    });
        }
    }

    static ClassLoader getSystemClassLoader() {
        if (System.getSecurityManager() == null) {
            return ClassLoader.getSystemClassLoader();
        } else {
            return (ClassLoader) java.security.AccessController.doPrivileged(
                    new java.security.PrivilegedAction() {
                        public java.lang.Object run() {
                            return ClassLoader.getSystemClassLoader();
                        }
                    });
        }
    }
    
}