Few days ago, somebody (they wrote a MYjDUL utility) post a message on a public forum said that AUL/MyDUL is copied from jDUL open source project. This is not true, when I started to write AUL/MyDUL utility in 2004 Q4, I did not know this open source project at all, else I may not start to write this utility. The first version is also written in Java language, I spent a lot of time in AnySQL utility with Java programming, so Java is the language I know best at that time.
You can download the source code here, I redesigned and rewrote it with standard C language for self-protection and for high performance. There are three major files.
1, OracleBlock.java -- Interface Defination
2, OracleBlockV2Big.java -- Implemention for Big Edian
3, OracleBlockV2Little.java -- Implemention for Little Edian
But I don't remember how to get it work, but you can still get to know the Oracle data block format from the source code lines.
Although it's written in Java, but not a jDUL copy.