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From Tim Watts <...@cliftonfarm.org>
Subject Re: Correct Derby software ?
Date Thu, 21 Jun 2012 13:31:01 GMT
On Thu, 2012-06-21 at 09:21 -0400, Tim Watts wrote:
> On Thu, 2012-06-21 at 13:54 +0200, Isabelle DASTUGUE wrote:
> > Hello,
> > 
> > I have a Derby database that works when I start it from Eclipse, but
> > when I try to run it from the. Jar of my application, it does not
> > work.
> > 
> > Here are two successive errors:
> > java.sql.SQLException: Failed to start database 'C:\Test\Base' with
> > class loader sun.misc.Launcher$AppClassLoader@35ce36, see the next
> > exception for details.
> > then
> > Caused by: java.sql.SQLException: Startup failed due to missing
> > functionality for org.apache.derby.iapi.store.access.AccessFactory.
> > Please ensure your classpath includes the correct Derby software.
> > 
> > I put the Derby access to my files in the classpath in environment
> > variables, but it's still not working.
> > 
> > My four files:
> > - Derby.jar,
> > - Derbyclient.jar,
> > - Derbynet.jar,
> > - Derbytools.jar.
> > Are exactly the same and on the same PC ...
> > 
> > Without the call to the base, my. Jar works.
> > With the base, I create the server, do I start Derby, I run the
> > instance but I cannot connect to the database at the address returned
> > is obviously good ...
> > 
> > Any idea?
> > 
> Check if there is a Class-Path entry in your jar's META-INF/MANIFEST.MF
> file.  If there is, then the dependent jars need to be specified there
> (space separated).  The jar locations must be specified relative to
> my.jar (IMPORTANT!).  So if my.jar and derbyclient.jar in the same dir
> then the entry should look like this:
> 
>         Class-Path: derbyclient.jar
> 
> But if my.jar is in base/ and derbyclient.jar is in home/libs then this:

TYPO:  meant base/libs not home/libs

> 
>         Class-Path: libs/derbyclient.jar
> 
> and base/ needs to be in CLASSPATH (so that my.jar will be found).
> 
> See: http://docs.oracle.com/javase/6/docs/technotes/guides/jar/jar.html
> for all details on jars and manifests.
> 
> (btw, if your app is using derby in client mode then I don't think you
> need all those jars, just derbyclient.jar).
> 
> > Cordially
> > 
> > Isabelle DASTUGUE
> > 
> 


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