<p>Es ne feledkezzunk meg a legfontosabb fixrol: korrigaltak az evszamot a copyright-ban :-)</p>
<p>Garami Gábor<br>
<a href="mailto:gabor.garami@hron.me">gabor.garami@hron.me</a><br>
Skype: hron84<br>
Tel: +36 20 235 9621</p>
<p>Sent from my T-Mobile G2<br>
Ezt a levelet telefonról adták fel, ékezethibákat tartalmazhat.</p>
<div class="gmail_quote">2012.08.31. 11:44, "Auth Gábor (Confluence)" <<a href="mailto:wiki@javaforum.hu">wiki@javaforum.hu</a>> ezt írta:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<td rowspan="2" style="font-size:13px;text-align:left;vertical-align:top;width:56px"> <img src="cid:avatar_d7177d5506ab05ef431ea35647b597a3" border="0" height="48" width="48"> </td>
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<a href="http://wiki.javaforum.hu/display/~auth.gabor" style="color:#326ca6;text-decoration:none;color:#326ca6;text-decoration:none" target="_blank">Auth Gábor</a> wrote a blog post:
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<td valign="top" style="font-size:13px"> <h2 style="font-size:16px;line-height:20px;min-height:20px;margin:0;padding:0"> <a href="http://wiki.javaforum.hu/pages/viewpage.action?pageId=28442797" style="color:#326ca6;text-decoration:none" target="_blank"> <img src="cid:blogpost-icon" alt="" style="border:0;padding:0 2px 0 0;text-align:left"> <strong style="font-size:16px;line-height:20px;vertical-align:top">A Java 7 sebezhetőség javítása</strong> </a> </h2>
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<p style="font-size:13px">Tegnap este megjelent a hírhedt Java 7 sebezhetőség javítása: <a href="http://www.oracle.com/technetwork/topics/security/alert-cve-2012-4681-1835715.html" rel="nofollow" style="text-decoration:none;color:#326ca6;text-decoration:none" target="_blank">http://www.oracle.com/technetwork/topics/security/alert-cve-2012-4681-1835715.html</a></p>
<p style="font-size:13px">Kis kutakodással a források között találunk egy érdekességet a <a href="http://hg.openjdk.java.net/jdk7u/jdk7u/jdk/diff/dfffff29f870/src/share/classes/com/sun/beans/finder/ClassFinder.java" rel="nofollow" style="color:#326ca6;text-decoration:none" target="_blank">ClassFinder.java</a> osztály módosításai között:</p>
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<b>ClassFinder.java</b>
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<pre style="font-size:12px;font-size:13px">--- a/src/share/classes/com/sun/beans/finder/ClassFinder.java Tue May 25 15:58:33 2010 -0700
+++ b/src/share/classes/com/sun/beans/finder/ClassFinder.java Tue Jun 19 21:04:48 2012 +0400
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2006, 2008, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2006, 2012, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -23,6 +23,8 @@
* questions.
*/
package com.sun.beans.finder;
+
+import static sun.reflect.misc.ReflectUtil.checkPackageAccess;
/**
* This is utility class that provides {@code static} methods
@@ -54,6 +56,7 @@ public final class ClassFinder {
* @see Thread#getContextClassLoader()
*/
public static Class<?> findClass(String name) throws ClassNotFoundException {
+ checkPackageAccess(name);
try {
ClassLoader loader = Thread.currentThread().getContextClassLoader();
if (loader == null) {
@@ -94,6 +97,7 @@ public final class ClassFinder {
* @see Class#forName(String,boolean,ClassLoader)
*/
public static Class<?> findClass(String name, ClassLoader loader) throws ClassNotFoundException {
+ checkPackageAccess(name);
if (loader != null) {
try {
return Class.forName(name, false, loader);</pre>
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<p style="font-size:13px">Egyszerűen a problémát okozó metódusok elé bekerült egy <em>checkPackageAccess</em> hívás a <a href="http://hg.openjdk.java.net/jdk7u/jdk7u/jdk/file/00cd9dc3c2b5/src/share/classes/sun/reflect/misc/ReflectUtil.java" rel="nofollow" style="color:#326ca6;text-decoration:none" target="_blank">ReflectUtil</a> osztályból, amely leellenőrzi, hogy az adott osztály betölthető-e:</p>
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<b>ReflectionUtil.java</b>
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<pre style="font-size:12px;font-size:13px">public static void checkPackageAccess(String name) {
SecurityManager s = System.getSecurityManager();
if (s != null) {
String cname = name.replace('/', '.');
if (cname.startsWith("[")) {
int b = cname.lastIndexOf('[') + 2;
if (b > 1 && b < cname.length()) {
cname = cname.substring(b);
}
}
int i = cname.lastIndexOf('.');
if (i != -1) {
s.checkPackageAccess(cname.substring(0, i));
}
}
}</pre>
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<p style="font-size:13px">Amint láthatjuk, a javítás június 19-én került a forrásokba, az előző Java 7 update 6 kiadás augusztus 14-én kerül ki, jó kérdés, hogy egy ismert hiba javítása miért nem került bele ez utóbbi verzióba, amikor elegendő idő jutott volna a tesztelésére és javítására...</p>
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