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From "Nic Grounds (JIRA)" <>
Subject [jira] Commented: (AMQ-1457) Can't set properties on ActiveMQBytesMessage after a reset()
Date Wed, 10 Oct 2007 15:24:23 GMT


Nic Grounds commented on AMQ-1457:

As clarification, the property I need to set on the ActiveMQBytesMessage includes more information
than simple the message length (but it is important the the message length be embedded in
this other information).

> Can't set properties on ActiveMQBytesMessage after a reset()
> ------------------------------------------------------------
>                 Key: AMQ-1457
>                 URL:
>             Project: ActiveMQ
>          Issue Type: Improvement
>    Affects Versions: 4.1.1, 5.0.0
>            Reporter: Nic Grounds
>         Attachments: propertyAfterReset.patch
> Once the reset() method has been called on an ActiveMQBytesMessage object, properties
can no longer be set.  The use case is that I need to set a property to represent the message
length (number of bytes) but I can't determine that (using the getBodyLength() method) until
after a call to reset().
> A very crude patch is included which prevents the [unnecessary?] assumption that the
ActiveMQBytesMessage may be uninitialized when setting an object property.
> Note: the documentation for a JMS BytesMessage API documentation states that the reset()
method puts the BytesMessage into read-only mode but whether this applies to the body only
or to the body and properties is unclear.
> I marked this issue as an improvement because I'm not convinced whether it is a bug or
whether there is a another, better way to accomplish what I'm trying to do.

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