Using JBoss 4.0.5-GA with JDK 1.5.0_06 and getting this issue with JBossMQ when
the MDB is trying to acquire our business data object from the body of an
ObjectMessage
| javax.jms.MessageFormatException: IOException: Incorrect number of bytes
read.
| at
org.jboss.mq.SpyObjectMessage.getObject(SpyObjectMessage.java:158)
|
I did some groundwork looking for a solution and I can't seem to find any
posting regarding this issue. I also included the method that i believe to be
the culprit of this issue. On setObject(Serializable) the flush() method is not
called prior to extracting byte array from ByteArrayOutputStream. So I would
suspect that if the ObjectOutputStream did not by chance automatically flush to
the memory stream it would make sense why some bytes appear to be lost.
| public void setObject(Serializable object) throws JMSException
| {
| if (header.msgReadOnly)
| {
| throw new MessageNotWriteableException("setObject");
| }
| if (object == null)
| {
| objectBytes = null;
| return;
| }
| try
| {
| if (object instanceof byte[])
| {
| //cheat for byte arrays
| isByteArray = true;
| objectBytes = new byte[((byte[]) object).length];
| System.arraycopy(object, 0, objectBytes, 0, objectBytes.length);
| }
| else
| {
| isByteArray = false;
| ByteArrayOutputStream byteArray = new ByteArrayOutputStream();
| ObjectOutputStream objectOut = new
ObjectOutputStream(byteArray);
| objectOut.writeObject(object);
| objectBytes = byteArray.toByteArray();
| objectOut.close();
| }
| }
| catch (IOException e)
| {
| throw new MessageFormatException("Object cannot be serialized");
| }
| }
|
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