Paolo Robertson

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since Oct 11, 2009
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Recent posts by Paolo Robertson

Hi everyone,

Can you recommend some tools for reading Java core dump files? The Java Dump Analyzer in http://alphaworks.ibm.com/tech/jca/download, looks quite outdated. Thanks in advance.

Regards,
Paolo
12 years ago
Hi guys, need your help here.

I have a simple Struts2 application, connecting to a DB2 database. I'm using db2jcc.jar. I'm able to connect to the DB successfully using iBATIS, however I get this intermittent problem once in a while. Any input would be appreciated. Thanks so much in advance.


Hi everyone, it's been a while. I have setup log4j in our application. It's working fine with appender DailyRollingFileAppender and layout PatternLayout. The problem is that we have a requirement to write a header and footer for every file created.

I've Googled this and tried subclassing PatternLayout. I created override methods of getHeader() and getFooter() inside the child class. The header writes correctly - after every roll, it's always there. But the footer is never written at all... Can you please help me?
Hi everyone, need your help please.

Can someone give me a background on how to implement multi-language support in a Java web application? For this specific problem, my application needs to display and accept Hungarian special characters.

1. How does multi-language support work in general?

2. What things in the web application do I have to configure to support this feature? Config file changes? Any jar to import?

3. Do I have to put some changes in the individual JSPs?

Thanks so much for any response.
14 years ago

Your question is vague Ashok.

Garbage collection is a way to free up unwanted resources and is being done automatically in Java. If you intend to manually call it, you issue System.gc() - however, take note that the JVM can choose to ignore this command altogether, it merely alerts the JVM that you think it's a good time to do the garbage collection.
14 years ago

I'll try to reply as layman and as short as possible. Because I think you don't really intend to go into the detail of these technologies, but more into a general understanding, so that you'll get a hang of the jargon.

EJB pertains to the architecture created by Sun to support enterprise-level software development. You don't really "see" an EJB. It's more of a concept (a very complex concept). Normal beans on the other hand are regular classes that are comprised of member fields plus the setters and getters for those fields.

Spring is a framework. In short, it is simply used to implement a standard structure while doing software development. Spring is a very popular framework that's why you hear it often.

Hibernate is a persistence framework. It simplifies saving data into databases by creating mappings of classes to the actual databases.
14 years ago