Solved

Jar file needs to be writeable?

Posted on 2006-11-16
9
266 Views
Last Modified: 2010-03-31
When I built the last installable the applet would not run on the test machine. The problem turned out to be that I had introduced a new jar file (Tablelayout.jar - layout manager) and the jar file needed to have the readonly flag _off_. I Made the jar writeable and it all worked.

Can someone explain this?
0
Comment
Question by:tomcorcoran
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
9 Comments
 
LVL 86

Accepted Solution

by:
CEHJ earned 25 total points
ID: 17954955
Sounds odd to me - a jar is inherently unwriteable
0
 

Author Comment

by:tomcorcoran
ID: 17955006
Indeed. Just to clarify, when I say I made it writeable, I simply removed the readonly attribute.
0
 
LVL 24

Assisted Solution

by:sciuriware
sciuriware earned 25 total points
ID: 17955279
I think that inside the .jar there is some code that tests from what .jar
the program is run and if it is set writeable. This is all well possible in JAVA.
Normally a running .jar is not writeable because it is in use, like CEHJ said.
I believe it is just some trick or weird programming to do so.

;JOOP!
0
Online Training Solution

Drastically shorten your training time with WalkMe's advanced online training solution that Guides your trainees to action. Forget about retraining and skyrocket knowledge retention rates.

 

Author Comment

by:tomcorcoran
ID: 18020870
If the 3rd party layout manager jar (tablelayout.jar) is not writeable my code will not work.  I just use tablelayout at normal. Anyone got any explanations?
0
 
LVL 24

Expert Comment

by:sciuriware
ID: 18025754
I gave you explanations.
Normally .jar's are not set to readonly, so that's the case.
Why not deploy it and ignore the state of the file?

;JOOP!
0
 

Author Comment

by:tomcorcoran
ID: 18038471
thanks. not finding it easy to follow your posts. i have deployed it. i was looking for an explanation. no one has given one. thanks.
0
 
LVL 24

Expert Comment

by:sciuriware
ID: 18043337
How could we explain what's hidden inside the .jar?

I think that the 3rd post is the best we could do.
Else, why not contact the originator of the .jar? If they know it .....
It could be nothing more than a mistake ....

;JOOP!
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction This article is the last of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers our test design approach and then goes through a simple test case example, how …
Basic understanding on "OO- Object Orientation" is needed for designing a logical solution to solve a problem. Basic OOAD is a prerequisite for a coder to ensure that they follow the basic design of OO. This would help developers to understand the b…
Video by: Michael
Viewers learn about how to reduce the potential repetitiveness of coding in main by developing methods to perform specific tasks for their program. Additionally, objects are introduced for the purpose of learning how to call methods in Java. Define …
Viewers will learn about arithmetic and Boolean expressions in Java and the logical operators used to create Boolean expressions. We will cover the symbols used for arithmetic expressions and define each logical operator and how to use them in Boole…

695 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question