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8019292: Better Attribute Value Exceptions

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Reviewed-by: dfuchs, dholmes, ahgross
This commit is contained in:
Shanliang Jiang 2013-08-06 10:33:42 +02:00
parent 10738dc298
commit a3b45465c6
1 changed files with 29 additions and 3 deletions
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32
jdk/src/share/classes/javax/management/BadAttributeValueExpException.java
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@ -25,6 +25,9 @@
package javax.management; package javax.management;
import java.io.IOException;
import java.io.ObjectInputStream;
/** /**
* Thrown when an invalid MBean attribute is passed to a query * Thrown when an invalid MBean attribute is passed to a query
@ -41,17 +44,19 @@ public class BadAttributeValueExpException extends Exception {
private static final long serialVersionUID = -3105272988410493376L; private static final long serialVersionUID = -3105272988410493376L;
/** /**
* @serial The attribute value that originated this exception * @serial A string representation of the attribute that originated this exception.
* for example, the string value can be the return of {@code attribute.toString()}
*/ */
private Object val; private Object val;
/** /**
* Constructs an <CODE>BadAttributeValueExpException</CODE> with the specified Object. * Constructs a BadAttributeValueExpException using the specified Object to
* create the toString() value.
* *
* @param val the inappropriate value. * @param val the inappropriate value.
*/ */
public BadAttributeValueExpException (Object val) { public BadAttributeValueExpException (Object val) {
this.val = val; this.val = val == null ? null : val.toString();
} }
@ -62,4 +67,25 @@ public class BadAttributeValueExpException extends Exception {
return "BadAttributeValueException: " + val; return "BadAttributeValueException: " + val;
} }
private void readObject(ObjectInputStream ois) throws IOException, ClassNotFoundException {
ObjectInputStream.GetField gf = ois.readFields();
Object valObj = gf.get("val", null);
if (valObj == null) {
val = null;
} else if (valObj instanceof String) {
val= valObj;
} else if (System.getSecurityManager() == null
|| valObj instanceof Long
|| valObj instanceof Integer
|| valObj instanceof Float
|| valObj instanceof Double
|| valObj instanceof Byte
|| valObj instanceof Short
|| valObj instanceof Boolean) {
val = valObj.toString();
} else { // the serialized object is from a version without JDK-8019292 fix
val = System.identityHashCode(valObj) + "@" + valObj.getClass().getName();
}
}
} }