Solved

runFinalizersOnExit

Posted on 1998-01-19
5
217 Views
Last Modified: 2012-06-27
Is there anyway to hardwire runFinalizersOnExit
into a class?

Can you make an object that absolutely will run its
its finalize method?  If you can't insure it how do
you note it in the javadoc page.  Is there a standard
BEWARE gif I haven't seen?  Is there a compiler way to
change the default of not running finalizers.  (Does
java have a "pragma" way of controlling the compiler?)
Oh, just questions questions questions.

Comments only for a few days unless your believe your
answer is truly a definitive.
0
Comment
Question by:hank1
[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
  • 2
5 Comments
 

Expert Comment

by:rjg2000
ID: 1232383
To the best of my knowledge.

not as such, you can call Runtime.runFinalizersOnExit(true) to force the VM to run the finalizers before collecting the object but there is not guarentee that this will be done immediately.  (It will be done at the time the object is actually freed which may be alot later than when thre reference was lost.  I belive you can force unreference objects to run their finalizers by calling Runtime.runFinalization().  There is no way to force this behaviour without user code.

The way I would approach this is if the finalizer is so important then I would explictly call your own finaliztion method when you throw the object away.  (you imply that you really need the locked resource back and this thus guarantees it).

0
 
LVL 1

Author Comment

by:hank1
ID: 1232384
Running a program normally allows runFinalizersOnExit(true)
to run the finalize methods.  'break'ing out of a program
defeats it.  Anyway to 'capture' this
abnormal program abort and let runFinalizersOnExit()
do it thing?
0
 

Expert Comment

by:rjg2000
ID: 1232385
Not to the best of my knowledge,

If it is really important to do this clean up you will have to do
the house keeping yourself.

If you are talking about breaking out if a program by an execption you can catch this using

try
{
      ..program
}
catch(Throwable t)
{
      cleanUp();
}
}
0
 
LVL 1

Author Comment

by:hank1
ID: 1232386
Ah yes, so right.  Just capture the exception ...  Dahhhh
Thanks.  Plop an answer in here and I'll give rjg2000 the points
PS - You ready for 1999 - 2000 xsistion ( which is still the
20th century by-the-way)
0
 

Accepted Solution

by:
rjg2000 earned 50 total points
ID: 1232387
Here it is,

Yes, I'm year 2000 complient but only cos all my normal aliases are already used.  Which is strange cos my name and normal username are quite unusual.
0

Featured Post

Secure Your Active Directory - April 20, 2017

Active Directory plays a critical role in your company’s IT infrastructure and keeping it secure in today’s hacker-infested world is a must.
Microsoft published 300+ pages of guidance, but who has the time, money, and resources to implement? Register now to find an easier way.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
ejb on wildfly 5 47
sql import cannot be resolved jsp 3 75
hashmap order 17 42
learn programming 8 70
Go is an acronym of golang, is a programming language developed Google in 2007. Go is a new language that is mostly in the C family, with significant input from Pascal/Modula/Oberon family. Hence Go arisen as low-level language with fast compilation…
Java functions are among the best things for programmers to work with as Java sites can be very easy to read and prepare. Java especially simplifies many processes in the coding industry as it helps integrate many forms of technology and different d…
Viewers learn about the scanner class in this video and are introduced to receiving user input for their programs. Additionally, objects, conditional statements, and loops are used to help reinforce the concepts. Introduce Scanner class: Importing…
This tutorial covers a step-by-step guide to install VisualVM launcher in eclipse.

733 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