Hi David,
Yeah I ran into the following problem a few weeks ago:
I tried to deploy an ear file with tranql--derby-client-xa rar file. I
first tried to add the derbyclient along with system-database as the
dependencies of the ear file, but that didn't work (keeping getting CNF
error while I know the class is in the derbyclient.). Then I removed
the system-database off the dependency and it worked fine. That seems
to be the only way to get the derbyclient in the classloader without
modifying the system-database.
Lin
David Jencks wrote:
I haven't investigated this problem personally but from discussions with
Joe I think that the problem is a bizarre "feature" of DriverManager
that attempts to protect you from yourself and instead shoots you in the
foot. I don't remember the exact details but DriverManager won't supply
Drivers for a URL unless they are in a very specific classloader. I
think this gets the client driver in a classloader in which
DriverManager will allow you to use it, whereas in any other classloader
you cant get to the client driver.
Sorry I'm kind of vague on the details -- I last ran into this
personally about 3 years ago.
thanks
david jencks
On Mar 8, 2007, at 11:32 PM, Lin Sun wrote:
Hi Joe,
Just curious...why would we want to have derbyclient as a
system-database's dependency? IIUC geronimo is using derby as
embedded system database, I don't see a need to add derbyclient as a
dependency.
Thanks, Lin
[EMAIL PROTECTED] wrote:
Author: jbohn
Date: Thu Mar 8 11:14:58 2007
New Revision: 516152
URL: http://svn.apache.org/viewvc?view=rev&rev=516152
Log:
add missing derby client jar to SystemDatabase
Modified:
geronimo/server/trunk/configs/system-database/pom.xml
Modified: geronimo/server/trunk/configs/system-database/pom.xml
URL:
http://svn.apache.org/viewvc/geronimo/server/trunk/configs/system-database/pom.xml?view=diff&rev=516152&r1=516151&r2=516152
==============================================================================
--- geronimo/server/trunk/configs/system-database/pom.xml (original)
+++ geronimo/server/trunk/configs/system-database/pom.xml Thu Mar 8
11:14:58 2007
@@ -72,6 +72,11 @@
</dependency>
<dependency>
+ <groupId>org.apache.derby</groupId>
+ <artifactId>derbyclient</artifactId>
+ </dependency>
+
+ <dependency>
<groupId>org.tranql</groupId>
<artifactId>tranql-connector-derby-embed-xa</artifactId>
<type>rar</type>
