src/java.base/share/classes/java/io/ObjectInputStream.java

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rev 12972 : 8140606: Update library code to use internal Unsafe
Reviewed-by: duke


  23  * questions.
  24  */
  25 
  26 package java.io;
  27 
  28 import java.io.ObjectStreamClass.WeakClassKey;
  29 import java.lang.ref.ReferenceQueue;
  30 import java.lang.reflect.Array;
  31 import java.lang.reflect.Modifier;
  32 import java.lang.reflect.Proxy;
  33 import java.security.AccessControlContext;
  34 import java.security.AccessController;
  35 import java.security.PrivilegedAction;
  36 import java.security.PrivilegedActionException;
  37 import java.security.PrivilegedExceptionAction;
  38 import java.util.Arrays;
  39 import java.util.HashMap;
  40 import java.util.concurrent.ConcurrentHashMap;
  41 import java.util.concurrent.ConcurrentMap;
  42 import static java.io.ObjectStreamClass.processQueue;
  43 import sun.misc.Unsafe;
  44 import sun.reflect.misc.ReflectUtil;
  45 
  46 /**
  47  * An ObjectInputStream deserializes primitive data and objects previously
  48  * written using an ObjectOutputStream.
  49  *
  50  * <p>ObjectOutputStream and ObjectInputStream can provide an application with
  51  * persistent storage for graphs of objects when used with a FileOutputStream
  52  * and FileInputStream respectively.  ObjectInputStream is used to recover
  53  * those objects previously serialized. Other uses include passing objects
  54  * between hosts using a socket stream or for marshaling and unmarshaling
  55  * arguments and parameters in a remote communication system.
  56  *
  57  * <p>ObjectInputStream ensures that the types of all objects in the graph
  58  * created from the stream match the classes present in the Java Virtual
  59  * Machine.  Classes are loaded as required using the standard mechanisms.
  60  *
  61  * <p>Only objects that support the java.io.Serializable or
  62  * java.io.Externalizable interface can be read from streams.
  63  *




  23  * questions.
  24  */
  25 
  26 package java.io;
  27 
  28 import java.io.ObjectStreamClass.WeakClassKey;
  29 import java.lang.ref.ReferenceQueue;
  30 import java.lang.reflect.Array;
  31 import java.lang.reflect.Modifier;
  32 import java.lang.reflect.Proxy;
  33 import java.security.AccessControlContext;
  34 import java.security.AccessController;
  35 import java.security.PrivilegedAction;
  36 import java.security.PrivilegedActionException;
  37 import java.security.PrivilegedExceptionAction;
  38 import java.util.Arrays;
  39 import java.util.HashMap;
  40 import java.util.concurrent.ConcurrentHashMap;
  41 import java.util.concurrent.ConcurrentMap;
  42 import static java.io.ObjectStreamClass.processQueue;
  43 import jdk.internal.misc.Unsafe;
  44 import sun.reflect.misc.ReflectUtil;
  45 
  46 /**
  47  * An ObjectInputStream deserializes primitive data and objects previously
  48  * written using an ObjectOutputStream.
  49  *
  50  * <p>ObjectOutputStream and ObjectInputStream can provide an application with
  51  * persistent storage for graphs of objects when used with a FileOutputStream
  52  * and FileInputStream respectively.  ObjectInputStream is used to recover
  53  * those objects previously serialized. Other uses include passing objects
  54  * between hosts using a socket stream or for marshaling and unmarshaling
  55  * arguments and parameters in a remote communication system.
  56  *
  57  * <p>ObjectInputStream ensures that the types of all objects in the graph
  58  * created from the stream match the classes present in the Java Virtual
  59  * Machine.  Classes are loaded as required using the standard mechanisms.
  60  *
  61  * <p>Only objects that support the java.io.Serializable or
  62  * java.io.Externalizable interface can be read from streams.
  63  *