Requirement: message.bytes.method.clearBody

When clearBody is called on a BytesMessage, the body of the message is in write-only mode.
If clearBody is called on a message in read-only mode, the message body is cleared and the message is in write-only mode.

See:

• http://java.sun.com/products/jms/javadoc-102a/javax/jms/BytesMessage.html