Re: Inaccurate active session count in JavaMonitor (Solved)

On Jul 21, 2009, at 2:44 AM, Cheong Hee (Gmail) wrote:

> Yeap, exception found.
>
> lockManager.unlock() throws IllegalStateException when lock count is  
> zero.

Which says to me that it was not locked to begin with.  Try

if (lockManager.isLocked()) {
    lockManager.unlock();
}


> When the lock count is > 1, MultiEC lock manager is happier to  
> unlock all ECs, but not when lock count=0.  Try to relate why the  
> lock count=0 is handled by exception.  Is it acting like an  
> insurance to alert the users that probably error occur when multi- 
> ECs has registered (and assumed locked), but when no lock is found  
> when called unlock().  Should it or not throwing exception when lock  
> count = 0?

The throw is correct.  It ensures that your code has balanced calls to  
lock and unlock.


> Great thanks, Chuck and it clears doubt on my bad coding.


You are welcome.

Chuck


--
Chuck Hill             Senior Consultant / VP Development

Learn WO at WOWODC'09 East in Montréal this August!
http://www.wocommunity.org/wowodc09/east

http://arstechnica.com/apple/news/2009/07/webobjects-sliced-from-106but-prognosis-of-death-premature.ars

_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-deploy mailing list      (Webobjects-deploy@xxxxxxxxxxxxxxx)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/webobjects-deploy/maillists%40codeha.us

This email sent to maillists@xxxxxxxxx