Re: ClassCastException at Derby EmbeddedDataSource

Lin Sun Wed, 10 Oct 2007 11:39:19 -0700

Hi,

You should see org.apache.geronimo.configs/system-database/{version}/carthere on the list of driver Jar. (I think it was there when I used itlast time on 2.0.1.) You want to select it instead oforg.apache.derby/derby/10.2.2.0/jar to avoid your ClassCastException.


Lin

Zakharov, Vasily M wrote:

Hi David,

Yes, this actually helped, thank you very much!

However, the deployment plan I provided was generated by database pool

wizard in the console, as follows:

Console Navigation - Services - Database Pools
Create a new database pool: Using the Geronimo database pool wizard
Database Type: Derby embedded XA
Driver JAR: org.apache.derby/derby/10.2.2.0/jar

This seems to be a logical and trivial way.
And org.apache.geronimo.configs is absent in the "Driver JAR" list.

So, maybe there's a problem with database pool wizard that generates a
deployment plan that doesn't work as expected?

Vasily


-----Original Message-----

From: David Jencks [mailto:[EMAIL PROTECTED]Sent: Wednesday, October 10, 2007 4:16 AM

To: dev@geronimo.apache.org
Subject: Re: ClassCastException at Derby EmbeddedDataSource

Hi Vasily,

when you use a derby datasource you have to make sure you get thederby classes from the same classloader as the embedded derbydatabase. You normally do this by replacing the derby dependency inyour plan with something like


             <dep:dependency>
                 <dep:groupId>org.apache.geronimo.configs</dep:groupId>
                 <dep:artifactId>system-database</dep:artifactId>
                 <dep:type>car</dep:type>
             </dep:dependency>

Hope this helps
david jencks



On Oct 9, 2007, at 2:16 PM, Zakharov, Vasily M wrote:

Hi, all,

I've come into a strange situation, that looks like maybe a bug, while
working on SPECjAppServer2004 deployment on G2.0.1.

When working with Embedded XA TranQL connector to internal Derby
database, class org.apache.geronimo.jdbc.DelegatingDriver (implements
java.sql.Driver) comes out in a place where either
org.apache.derby.jdbc.AutoloadedDriver (implements java.sql.Driver) or
org.apache.derby.jdbc.InternalDriver (implements
org.apache.derby.iapi.services.monitor.ModuleControl) is expected, and
this causes a ClassCastException on server side:

java.lang.ClassCastException:org.apache.geronimo.jdbc.DelegatingDriver

        at org.apache.derby.jdbc.EmbeddedDataSource.findDriver(Unknown
Source)
        at
org.apache.derby.jdbc.EmbeddedDataSource.getConnection(Unknown Source)
        at
org.apache.derby.jdbc.EmbeddedDataSource.getConnection(Unknown Source)
        at

org.apache.derby.jdbc.EmbeddedXADataSource.setupResourceAdapter(Unknown

Source)
        at
org.apache.derby.jdbc.EmbeddedXADataSource.getXAConnection(Unknown
Source)
        at
org.tranql.connector.jdbc.AbstractXADataSourceMCF.getPhysicalConnectio

n(
AbstractXADataSourceMCF.java:74)
        at
org.tranql.connector.derby.EmbeddedXAMCF.createManagedConnection(Embedde
dXAMCF.java:52)
        at
org.apache.geronimo.connector.outbound.MCFConnectionInterceptor.getCon

ne
ction(MCFConnectionInterceptor.java:48)
        at
org.apache.geronimo.connector.outbound.LocalXAResourceInsertionInterce

pt
or.getConnection(LocalXAResourceInsertionInterceptor.java:41)
        at
org.apache.geronimo.connector.outbound.SinglePoolConnectionInterceptor

.i
nternalGetConnection(SinglePoolConnectionInterceptor.java:67)
        at
org.apache.geronimo.connector.outbound.AbstractSinglePoolConnectionInt

er
ceptor.getConnection(AbstractSinglePoolConnectionInterceptor.java:78)
        at
org.apache.geronimo.connector.outbound.TransactionEnlistingInterceptor

.g
etConnection(TransactionEnlistingInterceptor.java:46)
        at
org.apache.geronimo.connector.outbound.TransactionCachingInterceptor.g

et
Connection(TransactionCachingInterceptor.java:88)
        at
org.apache.geronimo.connector.outbound.ConnectionHandleInterceptor.get

Co
nnection(ConnectionHandleInterceptor.java:43)
        at

org.apache.geronimo.connector.outbound.TCCLInterceptor.getConnection(TCC

LInterceptor.java:39)
        at
org.apache.geronimo.connector.outbound.ConnectionTrackingInterceptor.g

et
Connection(ConnectionTrackingInterceptor.java:66)
        at
org.apache.geronimo.connector.outbound.AbstractConnectionManager.alloc

at
eConnection(AbstractConnectionManager.java:87)
        at
org.tranql.connector.jdbc.DataSource.getConnection(DataSource.java:56)
        ...

The deployment plan for the connector can be found here:

http://cwiki.apache.org/confluence/download/attachments/64828/sjas-db.xm

l

This plan is deployed with

repository/org/tranql/tranql-connector-derby-embed-xa/1.3/tranql-connect

or-derby-embed-xa-1.3.rar

Vasily Zakharov
Intel ESSD


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Re: ClassCastException at Derby EmbeddedDataSource

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