GrassField

Hi,

Developers who write JSP will face this problem. They will end up with a JasperException, they have to pull their hairs to find the actual reason, either by try-catch block or any other way. if you have used jsp usebean tag, thats end. you have to put traces inside the bean. So, we need a way to get the exact exception that was probagated. So here is the way.

if( e instanceof ServletException ) {
pw.println( "Root cause:" );
( (ServletException) e ).getRootCause().printStackTrace( sw );

}

yes. this will solve your problem. ofcourse, if we put this code inside errorPage, that will be very helpful for us to track the exceptions.

Hi,

I am sharing an instance of a Vector in two places, one is populating the vector and another one is iterating it. two codes are synchronized. Very frequently I got in to a problem saying ConcurrentModificationException while iterating the code. Ofcourse, while iterating we may not update the collection. But will it lead to this kind of exception while the code is inside a synchronized. On cloning the collection, I cud come out of the problem. But this may not be a solution!

Hi,

While hitting a jsp with list of parameters appended to its URL, It was working fine in Mozilla Firefox, Suddently it broke down in IE saying Error: Invalid Pointer .

Later we come to know that the length of the string becomes a problem. We have gone in alternate way and rectfied this problem. Is there anyway by which I can pass long string as parameter to a URL via XMLHttpRequest?

Hi,

Last week i came across a tool, called ELDUMP, (EventLog Dump). This is a tool to fetch your event log entries from windows machines. You can have a look at http://www.ibt.ku.dk/jesper/ELDump/default.htm

It is very faster in fetching the entries. More over, there are lot of arguments we can pass which makes our job very simpler.

The sample format of its output is as follows,

C:\Documents and Settings\pandian>eldump
070523 09:37:02 ISService Information None 27 NT AUTHORITY\SYSTEM ACS
070523 09:41:28 ccProxy Information None 26 NT AUTHORITY\SYSTEM ACS Application starting
070523 09:41:28 ccSetMgr Information None 26 NT AUTHORITY\SYSTEM ACS Application starting
070523 09:41:28 ISService Information None 26 NT AUTHORITY\SYSTEM ACS

I am currently testing this site. Soon, i will come here for blogging. At present, I am here at http://barathee.blogspot.com