Salomo's Blog spot

Anyone getting the "Disk Defragmenter Could not start" message and on Windows XP this is what worked for me. Go to Control Panel, Select System and select the Advance Tab. Now Select Settings Under Performance and again select the advance tab. Under Virtual Memory select Change. Make sure that the Paging File Size for selected Drive for the Drive partition you want to Defrag has either a custom at least 2 times the amount of installed RAM if the space is available or is set to System Managed Size. Once I did this Defrag started working again. I don't know how the Page file got turned off on my system but this has been driving me mad for months!! Hope it helps someone else out there !!!

In Tomcat 5 there was the famous ${catalina.home}/shared/classes which you could use for sharing class files, properties files etc. Tomcat 6 by default doesn't come with this directory. In a first glance it seems that you can't do it anymore :-(.. But that's not true :-).. You need to configure Tomcat to point to a directory which you want to be shared location so applications can pick up resources from the classpath. The configuration is very simple. Just go to ${catalina.home}/conf and open catalina.properties. Add the path to the  shared.loader property. It will look something like this: # # List of comma-separated paths defining the contents of the "shared"  # classloader. Prefixes should be used to define what is the repository type. # Path may be relative to the CATALINA_BASE path or absolute. If left as blank, # the "common" loader will be used as Catalina's "shared" loader. # Examples: #     "foo": Add this folder as a cla...

In most applications you need to do some XML parsing to either provide XML to external systems or parse XML from external systems or of course both. Since the systems I work on use a lot of XML and they need to be as fast as possible I did some tests on several XML parsers. I tested the following parsers/XML frameworks: JDom Piccolo StaxMate XStream JAXB 2.1 All parsers were tested in isolation with the following parameters: 25 threads running simultaniously Every thread calls the parser 100 times The results are as follows. JDom Avg. parsing time: 325.24 ms Avg. memory usage: 307 KB Piccolo Avg. parsing time: 88.08 ms Avg. memory usage: 454 KB StaxMate Avg. parsing time: 96.16 ms Avg. memory usage: 203 KB XStream Avg. parsing time: 77.04 ms Avg. memory usage: 319 KB Jaxb 2.1 Avg. parsing time: 1778.12 ms Avg. memory usage: 618 KB As you can see XStream is the fastest one of them all. The total ranking of the parsers you can find below: XStream Piccolo StaxMate JDom JAXB 2.1 ...

The 0.3 version of my cargo-itest project now also supports Tomcat. So now Tomcat users can also write integration tests with fairly little effort. I am also extending it with an AbstractDefaultHibernateDeploymentTest which can be used to easily generate your database schema from your annotated classes. Before it wasn't possible to execute SQL scripts for test data. Now I added the functionality to enable you to execute SQL scripts before the deployment tests are run and also after. The execution of the SQL scripts will be before and after transaction so it will not be rolled back by the test case itself. Internally it uses the AbstractTransactionalJUnit4SpringContextTests but you only need to configure a list of file names in your itest-context.xml file which in turn will automatically be picked up by the test. Also added support for applications that don't use a database at all with the AbstractDefaultNoDbDeploymentTest class. In the near future I will also implement containe...