Converts the double argument to a long using the doubleToLongBits method in class Double, and then writes that long value to the bytes message stream as an 8-byte quantity, high byte first. 
double value to be written| Exception Type | Condition | 
|---|---|
| MessageException | if JMS fails to write the message due to some internal error. | 
| MessageNotWriteableException | if the message is in read-only mode. | 
IBytesMessage Interface | WebLogic.Messaging Namespace