I have similar experience: this package is slower than standard JDK 1.4.2 and consuming more memory. Is there something wrong on the following code snippet? --------------------- ByteArrayOutputStream bstream = new ByteArrayOutputStream(); org.jboss.serial.io.JBossObjectOutputStream out = new org.jboss.serial.io.JBossObjectOutputStream(bstream); out.writeObject(obj); out.close(); // Loading the memory block as an Object ByteArrayInputStream binstream = new ByteArrayInputStream(bstream.toByteArray()); org.jboss.serial.io.JBossObjectInputStream oin = new org.jboss.serial.io.JBossObjectInputStream(binstream); Object newobj = oin.readObject(); View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3984726#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...