According to previous article about SAP JCo 2.1.7 and Apache Tomcat, I later got some trouble to run real applications based on SAP JCo APIs. I'm sure that the code is absolutely correct. Anyway, I always got NullPointerException. There are several thread talking about this issue.

One of the most web application server in open source community is Apache Tomcat. The latest stable version is 5.5.20. It is possible to develop a web application that tightly interfaces to SAP R/3 or its components via SAP JCo aka SAP Java Connector. Its latest version is 2.1.7. It is a little bit tricky to run SAP JCo inside Apache Tomcat on Linux.

I'm going to try the latest trial version of SAP NetWeaver 2004s Java and ABAP on a virtual machine based on VMware Server. First of all, I have to download all packages from SDN.

It has been a while since Gaim 2.0.0 beta 5 came out. It works so great! Only one thing I really hate is the blank filename on file transfer. It is very annoying me everytime I got files from my friends. Fortunately, it was closed last week. It's the good news. The bad one is that this patch seems to be appeared in beta 6 and there is no tentative timeframe yet. However, the power of opensource is I don't have to wait. Everything I want, I might do it myself. Anyway, I don't have enough time to figure out where the problem is so I have to wait for the patch. Now, the patch is available. I may wait for beta 6 or compile it myself to make it work early. I have enough time to compile for sure!

SAP is such one of the most complex ERP on earth. It is designed for extensibility and scalability, especially in cluster environment. As a result, most services are accessible via internet protocol aka TCP/IP. So, you have to know IP address and port for such a service, e.g. J2EE. This is a bit funny. SAP uses wide range of TCP/IP ports.

My favorite e-mail reader is Thunderbird. Anyway, running Thunderbird all day all night is not funny at all especially when I have many thousand mails for a year. However, I would like to get a sort of notification as soon as possible to let me know about the incoming mails. I want to have light-weight mail notification tool for daily use.