ObjectMessage: handle objects with incorrect size ------------------------------------------------- Key: JGRP-2285 URL: https://issues.redhat.com/browse/JGRP-2285 Project: JGroups Issue Type: Enhancement Reporter: Bela Ban Assignee: Bela Ban Priority: Major Fix For: 5.1 An ObjectMessage accepts objects of type SizeStreamable. When such an object has an incorrect serializableSize() method, the following can happen: * Say the serialized size is 1000, but serializedSize() returns 1200 * When the ObjectMessage is serialized, a length of 1200 is written, but then only 1000 bytes are serialized onto the output stream * On the receiving side, length=1200 is read and a byte array of 1200 is created * DataInput.readFully() reads 1000 bytes, but then reaches the eof of the stream, trying to read an additional 200 bytes * An exception is thrown and the reading of the message fails If we caught the exception, things would work, however this would mask other errors in the object serialization/deserialization code. If the serialization code was able to mark the position of the output stream, then we could write the *actual number of bytes written* (especially if it differs from serializedSize()); however, DataOutput doesn't give us this option! Investigate whether simply catching (and ignoring) the EOFException would work.