/**
* Sets the System security.
*
* <p>If there is a security manager already installed, this method first calls the security
* manager's <code>checkPermission</code> method with a <code>
* RuntimePermission("setSecurityManager")</code> permission to ensure it's ok to replace the
* existing security manager. This may result in throwing a <code>SecurityException</code>.
*
* <p>Otherwise, the argument is established as the current security manager. If the argument is
* <code>null</code> and no security manager has been established, then no action is taken and the
* method simply returns.
*
* @param s the security manager.
* @exception SecurityException if the security manager has already been set and its <code>
* checkPermission</code> method doesn't allow it to be replaced.
* @see #getSecurityManager
* @see SecurityManager#checkPermission
* @see java.lang.RuntimePermission
*/
public static void setSecurityManager(final SecurityManager s) {
try {
s.checkPackageAccess("java.lang");
} catch (Exception e) {
// no-op
}
setSecurityManager0(s);
}
