WebSocketHandshakeException (Java SE 11 & JDK 11 )

java.lang.Object
- java.lang.Throwable
- - java.lang.Exception
  - - java.io.IOException
    - - java.net.http.WebSocketHandshakeException

All Implemented Interfaces:

Serializable
```
public final class WebSocketHandshakeException
extends IOException
```
Thrown when the opening handshake has failed.

Since:

11

See Also:

Serialized Form

- Constructor Summary
  
  Constructors
  Constructor Description
  
  WebSocketHandshakeException(HttpResponse<?> response)
  Constructs a WebSocketHandshakeException with the given HttpResponse.
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  HttpResponse<?> getResponse()
  Returns the server's counterpart of the opening handshake.
  - Methods declared in class java.lang.Throwable
    addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString
  - Methods declared in class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - WebSocketHandshakeException
```
public WebSocketHandshakeException(HttpResponse<?> response)
```
    Constructs a WebSocketHandshakeException with the given HttpResponse.
    
    Parameters:
    
    response - the HttpResponse that resulted in the handshake failure
- Method Detail
  - getResponse
```
public HttpResponse<?> getResponse()
```
    Returns the server's counterpart of the opening handshake.
    The value may be unavailable (null) if this exception has been serialized and then deserialized.
    
    API Note:
    
    The primary purpose of this method is to allow programmatic examination of the reasons behind the failure of the opening handshake. Some of these reasons might allow recovery.
    
    Returns:
    
    server response