Websphere 6.1 and above comes with in-built portlet container. Websphere load portlet api with all web application. There is no settings in adminstraive console to disable portlet container, it is an over-ahead on memory. This specifically make an problem or java based portal server e.g  jetspeed-2 , Liferay etc. There is only one way to [...]

Form validation in Wicket is very simple. Just add the feedback panel in your mark-up and put validation on your form fields. Wicket form can be summited by Ajax too, but in that case validation become different. Wicket Ajax is based on target rule, so need to pass on your request to next component. Same [...]

We all would faced the OutOfMemory error some times in our projects. Some times it make some confusion to us that we all thought  in college that Java manage it memory its own. Still there are some parameters by which you can tweak you memory. There are three basic reason which causes the OutOfMemory Heap [...]

Spring allows to you, to fall-back on system properties, if you not added any corresponding values with that. That is really a cool feature. If you need to look up,some system properties , you don’t need to do any thing just configure your bean and Spring will take care that. These are the some of [...]

Lot of times your eclipse get crashed while working, because of out of memory. I would suggest to increase your memory in-case your project is huge and keep on crashing. You can increase vm size of eclipse by changing eclipse.ini. There are memory argument for vm “-vmargs -Xms40m -Xmx256m” Even on increasing the memory, eclipse [...]

Spring LDAP 1.3.0.RELEASE This is a major release, containing more than 50 fixes compared to the 1.2.1 version; modifications varying in importance from internal modifications and minor fixes to important bug fixes and and significant functionality additions. Most importantly we now provide a means to perform simple LDAP authentication directly in LdapTemplate. Other useful improvements [...]

Since computer programming language is there, Developer are talking about standard conventions. All-though there recommended conventions are given by all Authors, but in practically it solely depends on Company. Lot of conventions are only talk about readable code. Conventions normally covers file Name, file organization, indentation, comments, declarations, statements, white space, naming conventions, programming practices [...]