1 /*

     2  * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 package javax.xml.stream;

    27 

    28 import java.security.*;

    29 import java.io.*;

    30 

    31 /**

    32  * This class is duplicated for each JAXP subpackage so keep it in sync.

    33  * It is package private and therefore is not exposed as part of the JAXP

    34  * API.

    35  *

    36  * Security related methods that only work on J2SE 1.2 and newer.

    37  */

    38 class SecuritySupport  {

    39 

    40 

    41     ClassLoader getContextClassLoader() throws SecurityException{

    42         return AccessController.doPrivileged((PrivilegedAction<ClassLoader>) () -> {

    43             ClassLoader cl = Thread.currentThread().getContextClassLoader();

    44 

    45             if (cl == null)

    46                 cl = ClassLoader.getSystemClassLoader();

    47 

    48             return cl;

    49         });

    50     }

    51 

    52     String getSystemProperty(final String propName) {

    53         return AccessController.doPrivileged((PrivilegedAction<String>) () ->

    54                 System.getProperty(propName));

    55     }

    56 

    57     FileInputStream getFileInputStream(final File file)

    58         throws FileNotFoundException

    59     {

    60         try {

    61             return AccessController.doPrivileged((PrivilegedExceptionAction<FileInputStream>) ()

    62                     -> new FileInputStream(file));

    63         } catch (PrivilegedActionException e) {

    64             throw (FileNotFoundException)e.getException();

    65         }

    66     }

    67 

    68     boolean doesFileExist(final File f) {

    69         return AccessController.doPrivileged((PrivilegedAction<Boolean>) () -> f.exists());

    70     }

    71 

    72 }