http://www.anandsekar.com ரெங்கசாமி ஆனந்த் சேகர் ராஜசேகர் Tue, 09 Feb 2010 15:37:29 +0000 http://backend.userland.com/rss092 en I have started using Timemachine to backup my computer. It was very simple to setup. One nice feature is that internally the incremental backups use links to refer to unchanged old files so opening the backup in finder shows the complete view. For my secondary backup snapshot I use pync which ... http://www.anandsekar.com/2010/02/09/timemachine-and-psync/ I have been using Microsoft's synctoy a lot. After moving all my computing to a Mac, I still have been running synctoy on parallels to get my backups done. When moving from Vista to Windows 7 I found so many quirks in synctoy that I have finally settled with SyncBack. ... http://www.anandsekar.com/2009/11/14/syncback-vs-synctoy/ I have finally moved all my computing to my MacBook. I used Parallels to run Windows Vista in Mac mostly to run Quicken. It was painfully slow. To speed up Windows Vista open up the display performance settings and set it to "Adjust for Best Performance". With this setting Windows ... http://www.anandsekar.com/2009/11/02/optimizing-windows-vista-for-parallels/ Untitled from Anand Rajasekar on Vimeo. http://www.anandsekar.com/2009/06/08/time-lapse-of-sunset-from-milpitas-hills/ A web application is configured using tomcat's server.xml and the context.xml. There some configurations that cause web applications to initialize twice like Duplicate definition of context in context.xml and server.xml Bugs in tomcat launchers for eclipse that create duplicate context definitions Duplicate definition of contexts when defining multiple hosts In my case I had ... http://www.anandsekar.com/2009/05/28/tomcat-initializing-servlet-twice/ Sometimes creating a collage of similar photographs adds a stunning effect. Here are three photographs of Aradhana stacking blocks. http://www.anandsekar.com/2009/05/18/three-makes-it-perfect/ Capturing a sharp photograph of a running child can be quite a challenge. Canon has a focusing mode called AI Servo that makes focusing moving objects very easy. This mode uses the auto focus motor to continuously focus on the object in the center of the view finder. This photograph ... http://www.anandsekar.com/2009/05/18/photographing-running-children/ Java Serialization is a easy way to persist the state of Java Objects. However if the structure of the class changes the serialized bytes is invalidated by the changes. This article suggest how one could implement serialization with Externalizable with support for versions. Consider a simple java class [code lang="java"] public class SimpleObject ... http://www.anandsekar.com/2008/10/22/java-serialization-versioning-with-externalizable/ A hackish way of modifying the classpath at runtime can be done in a way described at the java forums Modifying Classpath at Runtime A cleaner approach is to configure your own classloader and set it as the threads context classloader [code lang="java"] URL[] urls=new URL[2]; URLClassLoader classLoader=new URLClassLoader(urls); Thread.currentThread().setContextClassLoader(classLoader); [/code] This is extremely useful if your ... http://www.anandsekar.com/2008/08/27/modifying-classpath-at-runtime/ InheritableThreadLocal does not work with tomcat as tomcat thread pool does not clear the thread local contacts after a request has been executed. This results in no good way to share information information between the parent and the child threads that are created using thread local variables. One way to ... http://www.anandsekar.com/2008/05/08/inheritablethreadlocal-and-tomcat/