in qpid-jms-client/src/main/java/org/apache/qpid/jms/message/JmsBytesMessage.java [357:385]
public void writeObject(Object value) throws JMSException {
if (value == null) {
throw new NullPointerException();
}
initializeWriting();
if (value instanceof Boolean) {
writeBoolean(((Boolean) value).booleanValue());
} else if (value instanceof Character) {
writeChar(((Character) value).charValue());
} else if (value instanceof Byte) {
writeByte(((Byte) value).byteValue());
} else if (value instanceof Short) {
writeShort(((Short) value).shortValue());
} else if (value instanceof Integer) {
writeInt(((Integer) value).intValue());
} else if (value instanceof Long) {
writeLong(((Long) value).longValue());
} else if (value instanceof Float) {
writeFloat(((Float) value).floatValue());
} else if (value instanceof Double) {
writeDouble(((Double) value).doubleValue());
} else if (value instanceof String) {
writeUTF(value.toString());
} else if (value instanceof byte[]) {
writeBytes((byte[]) value);
} else {
throw new MessageFormatException("Cannot write non-primitive type:" + value.getClass());
}
}