gcc/libjava/java/lang/VMSecurityManager.java
Tom Tromey 76508852a0 Makefile.in: Rebuilt.
* Makefile.in: Rebuilt.
	* Makefile.am (nat_source_files): Added natVMSecurityManager,
	natResourceBundle.
	* java/util/ResourceBundle.java (Security): Removed.
	(getCallingClassLoader): Now native.
	* java/util/natResourceBundle.cc: New file.
	* java/lang/natVMSecurityManager.cc: New file.
	* java/lang/VMSecurityManager.java (getClassContext): Now native.

From-SVN: r59840
2002-12-05 00:49:30 +00:00

68 lines
2.1 KiB
Java

/*
* java.lang.SecurityManager: part of the Java Class Libraries project.
* Copyright (C) 1998, 2001, 2002 Free Software Foundation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
package java.lang;
import java.net.*;
import java.util.*;
import java.io.*;
/**
** VMSecurityManager is a helper class for SecurityManager the VM must
** implement.
**
** @author John Keiser
** @version 1.1.0, 31 May 1998
**/
class VMSecurityManager
{
/** Get a list of all the classes currently executing
** methods on the Java stack. getClassContext()[0] is
** the currently executing method
** <STRONG>Spec Note:</STRONG> does not say whether
** the stack will include the getClassContext() call or
** the one just before it.
**
** @return an array containing all the methods on classes
** on the Java execution stack.
**/
static native Class[] getClassContext();
/** Get the current ClassLoader--the one nearest to the
** top of the stack.
** @return the current ClassLoader.
**/
static ClassLoader currentClassLoader()
{
// The docs above are wrong. See the online docs.
// FIXME this implementation is a bit wrong too -- the docs say we
// must also consider ancestors of the system class loader.
Class[] classStack = getClassContext ();
for (int i = 0; i < classStack.length; i++)
{
ClassLoader loader = classStack[i].getClassLoader();
if (loader != null)
return loader;
}
return null;
}
}