Question

JRun 4 caching problem

Asked by: todd_farmer

Hi,

I am using JRun 4 (updater 3) and am encountering a problem with JRun apparently caching deployed code.  I updated a SQL statement declared as a static String and redeployed the web application.  It immediately failed because the SQL string was incorrect (it lacked a closing parenthesis).  I corrected the SQL string, recompiled the WAR and redeployed, but it failed again.  When I look at the logs, I see that JRun is still using the incorrect SQL string.  I've now redeployed several times over, with the same results.  Here's what I have done so far:

1.  Redeployed the .WAR file.
2.  Restarted the server.
3.  Restarted JRun.
4.  Deleted the folders under SERVER-INF where the web app was deployed.
5.  Rebooted the machine.
6.  Opened the compiled .class files to validate that the string was correct in the deployed app (it was.).

I've tried pretty much all of these options in various combinations, and nothing is working.  Somehow, JRun is obtaining the bad SQL string, even though the deployed code is correct.

Any ideas what I need to do to make JRun recognize the changes that have been made?

Thanks!

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Asked On
2005-09-30 at 10:02:34ID21580024
Tags

caching

,

problem

,

updater

Topic

Java Server Pages (JSP)

Participating Experts
2
Points
0
Comments
3

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Answers

 

by: todd_farmerPosted on 2005-09-30 at 10:12:36ID: 14994145

Never mind, I figured it out.  Turns out that it was a compilation issue, not a JRun issue.  The SQL string was declared as a final static variable, and apparently the compiler optimized the calling classes by including the string in those classes directly.  When I changed the String value in the final static variable, but did not change the calling classes, they were not recompiled and retained the old SQL.  Time to update my ANT script to clean the build directory before every build.

 

by: actonwangPosted on 2005-09-30 at 10:51:43ID: 14994567

todd_farmer,

      I had the same problem before. I had to clean up everything as you did :)
      good one:)

Cheers!
Acton

 

by: LunchyPosted on 2005-09-30 at 13:53:13ID: 14996074

Closed, 500 points refunded.
Lunchy
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