/*
* Copyright (c) 2000, 2006, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*/
/*
* @author IBM Corp.
*
* Copyright IBM Corp. 1999-2000. All rights reserved.
*/
package javax.management.modelmbean;
import com.sun.jmx.mbeanserver.
GetPropertyAction;
import java.io.
IOException;
import java.io.
ObjectInputStream;
import java.io.
ObjectOutputStream;
import java.io.
ObjectStreamField;
import java.security.
AccessController;
/**
* Exception thrown when an invalid target object type is specified.
*
*
* <p>The <b>serialVersionUID</b> of this class is <code>1190536278266811217L</code>.
*
* @since 1.5
*/
@
SuppressWarnings("serial") // serialVersionUID not constant
public class
InvalidTargetObjectTypeException extends
Exception
{
// Serialization compatibility stuff:
// Two serial forms are supported in this class. The selected form depends
// on system property "jmx.serial.form":
// - "1.0" for JMX 1.0
// - any other value for JMX 1.1 and higher
//
// Serial version for old serial form
private static final long
oldSerialVersionUID = 3711724570458346634L;
//
// Serial version for new serial form
private static final long
newSerialVersionUID = 1190536278266811217L;
//
// Serializable fields in old serial form
private static final
ObjectStreamField[]
oldSerialPersistentFields =
{
new
ObjectStreamField("msgStr",
String.class),
new
ObjectStreamField("relatedExcept",
Exception.class)
};
//
// Serializable fields in new serial form
private static final
ObjectStreamField[]
newSerialPersistentFields =
{
new
ObjectStreamField("exception",
Exception.class)
};
//
// Actual serial version and serial form
private static final long
serialVersionUID;
/**
* @serialField exception Exception Encapsulated {@link Exception}
*/
private static final
ObjectStreamField[]
serialPersistentFields;
private static boolean
compat = false;
static {
try {
GetPropertyAction act = new
GetPropertyAction("jmx.serial.form");
String form =
AccessController.
doPrivileged(
act);
compat = (
form != null &&
form.
equals("1.0"));
} catch (
Exception e) {
// OK: No compat with 1.0
}
if (
compat) {
serialPersistentFields =
oldSerialPersistentFields;
serialVersionUID =
oldSerialVersionUID;
} else {
serialPersistentFields =
newSerialPersistentFields;
serialVersionUID =
newSerialVersionUID;
}
}
//
// END Serialization compatibility stuff
/**
* @serial Encapsulated {@link Exception}
*/
Exception exception;
/**
* Default constructor.
*/
public
InvalidTargetObjectTypeException ()
{
super("InvalidTargetObjectTypeException: ");
exception = null;
}
/**
* Constructor from a string.
*
* @param s String value that will be incorporated in the message for
* this exception.
*/
public
InvalidTargetObjectTypeException (
String s)
{
super("InvalidTargetObjectTypeException: " +
s);
exception = null;
}
/**
* Constructor taking an exception and a string.
*
* @param e Exception that we may have caught to reissue as an
* InvalidTargetObjectTypeException. The message will be used, and we may want to
* consider overriding the printStackTrace() methods to get data
* pointing back to original throw stack.
* @param s String value that will be incorporated in message for
* this exception.
*/
public
InvalidTargetObjectTypeException (
Exception e,
String s)
{
super("InvalidTargetObjectTypeException: " +
s +
((
e != null)?("\n\t triggered by:" +
e.
toString()):""));
exception =
e;
}
/**
* Deserializes an {@link InvalidTargetObjectTypeException} from an {@link ObjectInputStream}.
*/
private void
readObject(
ObjectInputStream in)
throws
IOException,
ClassNotFoundException {
if (
compat)
{
// Read an object serialized in the old serial form
//
ObjectInputStream.
GetField fields =
in.
readFields();
exception = (
Exception)
fields.
get("relatedExcept", null);
if (
fields.
defaulted("relatedExcept"))
{
throw new
NullPointerException("relatedExcept");
}
}
else
{
// Read an object serialized in the new serial form
//
in.
defaultReadObject();
}
}
/**
* Serializes an {@link InvalidTargetObjectTypeException} to an {@link ObjectOutputStream}.
*/
private void
writeObject(
ObjectOutputStream out)
throws
IOException {
if (
compat)
{
// Serializes this instance in the old serial form
//
ObjectOutputStream.
PutField fields =
out.
putFields();
fields.
put("relatedExcept",
exception);
fields.
put("msgStr", ((
exception != null)?
exception.
getMessage():""));
out.
writeFields();
}
else
{
// Serializes this instance in the new serial form
//
out.
defaultWriteObject();
}
}
}