KeyException (Java SE 9 & JDK 9 )

java.lang.Object
- java.lang.Throwable
- - java.lang.Exception
  - - java.security.GeneralSecurityException
    - - java.security.KeyException

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

InvalidKeyException, KeyManagementException
```
public class KeyException
extends GeneralSecurityException
```
This is the basic key exception.

Since:

1.1

See Also:

Key, InvalidKeyException, KeyManagementException, Serialized Form

Constructor Summary

Constructors
Constructor	Description
`KeyException()`	Constructs a KeyException with no detail message.
`KeyException(String msg)`	Constructs a KeyException with the specified detail message.
`KeyException(String message, Throwable cause)`	Creates a `KeyException` with the specified detail message and cause.
`KeyException(Throwable cause)`	Creates a `KeyException` with the specified cause and a detail message of `(cause==null ? null : cause.toString())` (which typically contains the class and detail message of `cause`).

Method Summary
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
- Methods inherited from class java.lang.Throwable
  addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

- Constructor Detail
  - KeyException
```
public KeyException()
```
    Constructs a KeyException with no detail message. A detail message is a String that describes this particular exception.
  - KeyException
```
public KeyException(String msg)
```
    Constructs a KeyException with the specified detail message. A detail message is a String that describes this particular exception.
    
    Parameters:
    
    msg - the detail message.
  - KeyException
```
public KeyException(String message,
                    Throwable cause)
```
    Creates a KeyException with the specified detail message and cause.
    
    Parameters:
    
    message - the detail message (which is saved for later retrieval by the Throwable.getMessage() method).
    
    cause - the cause (which is saved for later retrieval by the Throwable.getCause() method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)
    
    Since:
    
    1.5
  - KeyException
```
public KeyException(Throwable cause)
```
    Creates a KeyException with the specified cause and a detail message of (cause==null ? null : cause.toString()) (which typically contains the class and detail message of cause).
    
    Parameters:
    
    cause - the cause (which is saved for later retrieval by the Throwable.getCause() method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)
    
    Since:
    
    1.5