Constructs a new throwable with the specified cause and a detail
(cause==null ? null : cause.toString()) (which
typically contains the class and detail message of
This constructor is useful for throwables that are little more than
wrappers for other throwables (for example,
fillInStackTrace() method is called to initialize
the stack trace data in the newly created throwable.
| the cause (which is saved for later retrieval by the