< prev index next >

test/jdk/java/io/Serializable/superclassDataLoss/SuperclassDataLossTest.java

Print this page
rev 51881 : [mq]: 8211171
rev 51882 : [mq]: 8211171-1


   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 4325590
  27  * @library /lib/testlibrary
  28  * @build JarUtils A B
  29  * @run main SuperclassDataLossTest
  30  * @summary Verify that superclass data is not lost when incoming superclass
  31  *          descriptor is matched with local class that is not a superclass of
  32  *          the deserialized instance's class.
  33  */
  34 
  35 import java.io.ByteArrayInputStream;
  36 import java.io.ByteArrayOutputStream;
  37 import java.io.InputStream;
  38 import java.io.IOException;
  39 import java.io.ObjectInputStream;
  40 import java.io.ObjectOutputStream;
  41 import java.io.ObjectStreamClass;
  42 import java.net.URL;
  43 import java.net.URLClassLoader;
  44 import java.net.MalformedURLException;
  45 import java.nio.file.Files;
  46 import java.nio.file.Path;
  47 import java.nio.file.Paths;
  48 import java.nio.file.StandardCopyOption;
  49 


  50 class MixedSuperclassStream extends ObjectInputStream {
  51     private boolean ldr12A;
  52     private URLClassLoader ldr1;
  53     private URLClassLoader ldr2;
  54 
  55     MixedSuperclassStream(InputStream in, URLClassLoader ldr1,
  56             URLClassLoader ldr2, boolean ldr1First) throws IOException {
  57         super(in);
  58         this.ldr1 = ldr1;
  59         this.ldr2 = ldr2;
  60         this.ldr12A = ldr12A;
  61     }
  62 
  63     protected Class resolveClass(ObjectStreamClass desc)
  64         throws IOException, ClassNotFoundException
  65     {
  66         // resolve A's classdesc to class != B's superclass
  67         String name = desc.getName();
  68         if (ldr12A) {
  69             if (name.equals("A")) {




   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 4325590
  27  * @library /test/lib
  28  * @build jdk.test.lib.util.JarUtils A B
  29  * @run main SuperclassDataLossTest
  30  * @summary Verify that superclass data is not lost when incoming superclass
  31  *          descriptor is matched with local class that is not a superclass of
  32  *          the deserialized instance's class.
  33  */
  34 
  35 import java.io.ByteArrayInputStream;
  36 import java.io.ByteArrayOutputStream;
  37 import java.io.InputStream;
  38 import java.io.IOException;
  39 import java.io.ObjectInputStream;
  40 import java.io.ObjectOutputStream;
  41 import java.io.ObjectStreamClass;
  42 import java.net.URL;
  43 import java.net.URLClassLoader;
  44 import java.net.MalformedURLException;
  45 import java.nio.file.Files;
  46 import java.nio.file.Path;
  47 import java.nio.file.Paths;
  48 import java.nio.file.StandardCopyOption;
  49 
  50 import jdk.test.lib.util.JarUtils;
  51 
  52 class MixedSuperclassStream extends ObjectInputStream {
  53     private boolean ldr12A;
  54     private URLClassLoader ldr1;
  55     private URLClassLoader ldr2;
  56 
  57     MixedSuperclassStream(InputStream in, URLClassLoader ldr1,
  58             URLClassLoader ldr2, boolean ldr1First) throws IOException {
  59         super(in);
  60         this.ldr1 = ldr1;
  61         this.ldr2 = ldr2;
  62         this.ldr12A = ldr12A;
  63     }
  64 
  65     protected Class resolveClass(ObjectStreamClass desc)
  66         throws IOException, ClassNotFoundException
  67     {
  68         // resolve A's classdesc to class != B's superclass
  69         String name = desc.getName();
  70         if (ldr12A) {
  71             if (name.equals("A")) {


< prev index next >