NullPointerException.java revision 4116
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0N/A
0N/Apackage java.lang;
0N/A
0N/A/**
0N/A * Thrown when an application attempts to use {@code null} in a
0N/A * case where an object is required. These include:
0N/A * <ul>
0N/A * <li>Calling the instance method of a {@code null} object.
0N/A * <li>Accessing or modifying the field of a {@code null} object.
0N/A * <li>Taking the length of {@code null} as if it were an array.
0N/A * <li>Accessing or modifying the slots of {@code null} as if it
0N/A * were an array.
0N/A * <li>Throwing {@code null} as if it were a {@code Throwable}
0N/A * value.
0N/A * </ul>
0N/A * <p>
0N/A * Applications should throw instances of this class to indicate
0N/A * other illegal uses of the {@code null} object.
0N/A *
0N/A * {@code NullPointerException} objects may be constructed by the
0N/A * virtual machine as if {@linkplain Throwable#Throwable(String,
0N/A * Throwable, boolean, boolean) suppression were disabled and/or the
* stack trace was not writable}.
*
* @author unascribed
* @since JDK1.0
*/
public
class NullPointerException extends RuntimeException {
private static final long serialVersionUID = 5162710183389028792L;
/**
* Constructs a {@code NullPointerException} with no detail message.
*/
public NullPointerException() {
super();
}
/**
* Constructs a {@code NullPointerException} with the specified
* detail message.
*
* @param s the detail message.
*/
public NullPointerException(String s) {
super(s);
}
}