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Merged gcj-eclipse branch to trunk.

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From-SVN: r120621
This commit is contained in:
Tom Tromey 2007-01-09 19:58:05 +00:00
parent c648dedbde
commit 97b8365caf
17478 changed files with 606493 additions and 100744 deletions
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55
libjava/classpath/java/security/SecureClassLoader.java
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@ -1,5 +1,5 @@
/* SecureClassLoader.java --- A Secure Class Loader
Copyright (C) 1999, 2004 Free Software Foundation, Inc.
Copyright (C) 1999, 2004, 2006 Free Software Foundation, Inc.
This file is part of GNU Classpath.
@ -37,6 +37,11 @@ exception statement from your version. */
package java.security;
import java.util.WeakHashMap;
import java.nio.ByteBuffer;
import java.util.HashMap;
/**
* A Secure Class Loader for loading classes with additional
* support for specifying code source and permissions when
@ -48,21 +53,16 @@ package java.security;
*/
public class SecureClassLoader extends ClassLoader
{
java.util.WeakHashMap protectionDomainCache = new java.util.WeakHashMap();
private final HashMap<CodeSource,ProtectionDomain> protectionDomainCache
= new HashMap<CodeSource, ProtectionDomain>();
protected SecureClassLoader(ClassLoader parent)
{
super(parent);
SecurityManager sm = System.getSecurityManager();
if(sm != null)
sm.checkCreateClassLoader();
}
protected SecureClassLoader()
{
SecurityManager sm = System.getSecurityManager();
if(sm != null)
sm.checkCreateClassLoader();
}
/**
@ -79,13 +79,38 @@ public class SecureClassLoader extends ClassLoader
*
* @exception ClassFormatError if the byte array is not in proper classfile format.
*/
protected final Class defineClass(String name, byte[] b, int off, int len,
protected final Class<?> defineClass(String name, byte[] b, int off, int len,
CodeSource cs)
{
return super.defineClass(name, b, off, len, getProtectionDomain(cs));
}
/**
* Creates a class using an ByteBuffer and a
* CodeSource.
*
* @param name the name to give the class. null if unknown.
* @param b the data representing the classfile, in classfile format.
* @param cs the CodeSource for the class or null when unknown.
*
* @return the class that was defined and optional CodeSource.
*
* @exception ClassFormatError if the byte array is not in proper classfile format.
*
* @since 1.5
*/
protected final Class defineClass(String name, ByteBuffer b, CodeSource cs)
{
return super.defineClass(name, b, getProtectionDomain(cs));
}
/* Lookup or create a protection domain for the CodeSource,
* if CodeSource is null it will return null. */
private ProtectionDomain getProtectionDomain(CodeSource cs)
{
ProtectionDomain protectionDomain = null;
if (cs != null)
{
ProtectionDomain protectionDomain;
synchronized (protectionDomainCache)
{
protectionDomain = (ProtectionDomain)protectionDomainCache.get(cs);
@ -105,10 +130,8 @@ public class SecureClassLoader extends ClassLoader
protectionDomain = domain;
}
}
return super.defineClass(name, b, off, len, protectionDomain);
}
else
return super.defineClass(name, b, off, len);
}
return protectionDomain;
}
/**
@ -117,7 +140,7 @@ public class SecureClassLoader extends ClassLoader
* java.security.Policy.getPermissions.
*
* This method is called by defineClass that takes a CodeSource
* arguement to build a proper ProtectionDomain for the class
* argument to build a proper ProtectionDomain for the class
* being defined.
*/
protected PermissionCollection getPermissions(CodeSource cs)