Kristian,
 
Since I was able to solve the problem using a different approach, I did not 
save all the old derby
log file or error messages, but here is some additional information.
 
When I tried to connect to the database with the usual URL similar to
 
     jdbc:derby://localhost:1527/K:\\ MyDB
 
it failed to connect, but when I used the real path name and not the 
substituted name similar to
 
     jdbc:derby://localhost:1527/C:\\SomeDIr\\MyDB
 
everything worked as expected.
 
The problem occurred in Windows Server 2008, 64-bit.
 
I suspect that the problem is easily duplicated, but if you can't, I can try to 
find the time to
duplicate it and send you the error messages.
 
 
From: Kristian Waagan [mailto:[email protected]] 
Sent: Tuesday, July 31, 2012 6:41 AM
To: [email protected]
Subject: Re: Derby 10.9.1.0 Incompatible with "Substituted" Drives on Windows
 
On 31.07.2012 12:32, John I. Moore, Jr. wrote: 
Derby Users and Developers,
 
I have an application that has used Derby (with the Network Server) for years, 
and overall I have
been extremely pleased.  However, I ran into a problem when trying to upgrade 
to 10.9.1.0.
 
I have three computing environments that I work in, which can be thought of a 
development, test, and
production.  For reasons not worth the trouble of explaining, these three 
environments are slightly
different, but until the latest release of Derby I could make them appear to be 
very similar by the
use of the Windows "subst" command, which associates a path with a drive 
letter.  For example, the
command "subst K: C:\SomeDir" makes the system appear to have a "K" drive, 
which in reality is
simply mapped to the directory SomeDir on the C drive.  All previous versions 
of Derby handled
databases on this substituted K drive without any problems, but version 
10.9.1.0 breaks on it.  I
was able to get around this problem by setting up a virtual drive using a 
different approach, so now
I have been able to upgrade Derby, but I wanted to point out the problem is 
case others have
encountered it.

Hi John,

Do you have any more information about what breaks?
I.e., are you able to boot the database?
Do you get an error message?
On which versions of Windows have you observed the problem?


Thanks,
-- 
Kristian



 
John Moore
 
 

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