Hai ,
I am getting the error when i am configuring hibernate using Proxool connection pool...Please help me out..
I am mentioning the Hibernate and Proxool properties.

Hibernate Properties:------


######################
### Query Language ###
######################

## define query language constants / function names
hibernate.query.substitutions true 1, false 0, yes 'Y', no 'N'

## select the classic query parser
#hibernate.query.factory_class org.hibernate.hql.classic.ClassicQueryTranslatorFactory

#################
### Platforms ###
#################

## JNDI Datasource

#hibernate.connection.datasource jdbc/test
#hibernate.connection.username db2
#hibernate.connection.password db2

## MySQL

hibernate.dialect org.hibernate.dialect.MySQLInnoDBDialect
#hibernate.connection.driver_class org.gjt.mm.mysql.Driver
hibernate.connection.driver_class com.mysql.jdbc.Driver
hibernate.connection.url jdbc:mysql://127.0.0.1:3307/mydb
hibernate.connection.username root
hibernate.connection.password root

#################################
### Hibernate Connection Pool ###
#################################

#hibernate.connection.pool_size 20

###########################
### C3P0 Connection Pool###
###########################

#hibernate.c3p0.max_size 2
#hibernate.c3p0.min_size 2
#hibernate.c3p0.timeout 5000
#hibernate.c3p0.max_statements 100
#hibernate.c3p0.idle_test_period 3000
#hibernate.c3p0.acquire_increment 2
#hibernate.c3p0.validate false

###################################
### Apache DBCP Connection Pool ###
###################################

## connection pool

#hibernate.dbcp.maxActive 100
#hibernate.dbcp.whenExhaustedAction 1
#hibernate.dbcp.maxWait 120000
#hibernate.dbcp.maxIdle 10

## prepared statement cache

#hibernate.dbcp.ps.maxActive 100
#hibernate.dbcp.ps.whenExhaustedAction 1
#hibernate.dbcp.ps.maxWait 120000
#hibernate.dbcp.ps.maxIdle 10

## optional query to validate pooled connections:

#hibernate.dbcp.validationQuery select 1 from dual
#hibernate.dbcp.testOnBorrow true
#hibernate.dbcp.testOnReturn false

##############################
### Proxool Connection Pool###
##############################

## Properties for external configuration of Proxool

hibernate.proxool.pool_alias ptas_test

## Only need one of the following

#hibernate.proxool.existing_pool true
#hibernate.proxool.xml proxool.xml
hibernate.proxool.properties proxool.properties

#################################
### Plugin ConnectionProvider ###
#################################

## use a custom ConnectionProvider (if not set, Hibernate will choose a built-in ConnectionProvider using hueristics)

#hibernate.connection.provider_class org.hibernate.connection.DriverManagerConnectionProvider
#hibernate.connection.provider_class org.hibernate.connection.DatasourceConnectionProvider
#hibernate.connection.provider_class org.hibernate.connection.C3P0ConnectionProvider
#hibernate.connection.provider_class org.hibernate.connection.ProxoolConnectionProvider

#######################
### Transaction API ###
#######################

## Enable automatic flush during the JTA beforeCompletion() callback
## (This setting is relevant with or without the Transaction API)

#hibernate.transaction.flush_before_completion

## Enable automatic session close at the end of transaction
## (This setting is relevant with or without the Transaction API)

#hibernate.transaction.auto_close_session

## the Transaction API abstracts application code from the underlying JTA or JDBC transactions

#hibernate.transaction.factory_class org.hibernate.transaction.JTATransactionFactory
#hibernate.transaction.factory_class org.hibernate.transaction.JDBCTransactionFactory

## to use JTATransactionFactory, Hibernate must be able to locate the UserTransaction in JNDI
## default is java:comp/UserTransaction
## you do NOT need this setting if you specify hibernate.transaction.manager_lookup_class

#jta.UserTransaction jta/usertransaction
#jta.UserTransaction javax.transaction.UserTransaction
#jta.UserTransaction UserTransaction

## to use the second-level cache with JTA, Hibernate must be able to obtain the JTA TransactionManager

hibernate.transaction.manager_lookup_class org.hibernate.transaction.JBossTransactionManagerLookup
#hibernate.transaction.manager_lookup_class org.hibernate.transaction.WeblogicTransactionManagerLookup
#hibernate.transaction.manager_lookup_class org.hibernate.transaction.WebSphereTransactionManagerLookup
#hibernate.transaction.manager_lookup_class org.hibernate.transaction.OrionTransactionManagerLookup
#hibernate.transaction.manager_lookup_class org.hibernate.transaction.ResinTransactionManagerLookup

##############################
### Miscellaneous Settings ###
##############################

## print all generated SQL to the console

#hibernate.show_sql true

## add comments to the generated SQL

#hibernate.use_sql_comments true

## generate statistics

#hibernate.generate_statistics true

## auto schema export

#hibernate.hbm2ddl.auto create-drop
#hibernate.hbm2ddl.auto create
hibernate.hbm2ddl.auto update

## specify a default schema and catalog for unqualified tablenames

#hibernate.default_schema test
#hibernate.default_catalog test

## enable ordering of SQL UPDATEs by primary key

hibernate.order_updates true

## set the maximum depth of the outer join fetch tree

hibernate.max_fetch_depth 1

## set the default batch size for batch fetching

hibernate.default_batch_fetch_size 8


## rollback generated identifier values of deleted entities to default values

#hibernate.use_identifer_rollback true


## enable CGLIB reflection optimizer (enabled by default)

#hibernate.cglib.use_reflection_optimizer false



#####################
### JDBC Settings ###
#####################

## specify a JDBC isolation level

#hibernate.connection.isolation 4


## enable JDBC autocommit (not recommended!)

#hibernate.connection.autocommit true


## set the JDBC fetch size

#hibernate.jdbc.fetch_size 25


## set the maximum JDBC 2 batch size (a nonzero value enables batching)

#hibernate.jdbc.batch_size 5


## enable batch updates even for versioned data

hibernate.jdbc.batch_versioned_data true


## enable use of JDBC 2 scrollable ResultSets (specifying a Dialect will cause Hibernate to use a sensible default)

#hibernate.jdbc.use_scrollable_resultset true


## use streams when writing binary types to / from JDBC

hibernate.jdbc.use_streams_for_binary true


## use JDBC 3 PreparedStatement.getGeneratedKeys() to get the identifier of an inserted row

#hibernate.jdbc.use_get_generated_keys false


## choose a custom JDBC batcher

# hibernate.jdbc.factory_class


## enable JDBC result set column alias caching
## (minor performance enhancement for broken JDBC drivers)

# hibernate.jdbc.wrap_result_sets


## choose a custom SQL exception converter

#hibernate.jdbc.sql_exception_converter



##########################
### Second-level Cache ###
##########################

## optimize chache for minimal "puts" instead of minimal "gets" (good for clustered cache)

#hibernate.cache.use_minimal_puts true


## set a prefix for cache region names

hibernate.cache.region_prefix hibernate.test


## disable the second-level cache

#hibernate.cache.use_second_level_cache false


## enable the query cache

#hibernate.cache.use_query_cache true


## store the second-level cache entries in a more human-friendly format

#hibernate.cache.use_structured_entries true


## choose a cache implementation

#hibernate.cache.provider_class org.hibernate.cache.EhCacheProvider
#hibernate.cache.provider_class org.hibernate.cache.EmptyCacheProvider
hibernate.cache.provider_class org.hibernate.cache.HashtableCacheProvider
#hibernate.cache.provider_class org.hibernate.cache.TreeCacheProvider
#hibernate.cache.provider_class org.hibernate.cache.OSCacheProvider
#hibernate.cache.provider_class org.hibernate.cache.SwarmCacheProvider


## choose a custom query cache implementation

#hibernate.cache.query_cache_factory



############
### JNDI ###
############

## specify a JNDI name for the SessionFactory

#hibernate.session_factory_name hibernate/session_factory


## Hibernate uses JNDI to bind a name to a SessionFactory and to look up the JTA UserTransaction;
## if hibernate.jndi.* are not specified, Hibernate will use the default InitialContext() which
## is the best approach in an application server

#file system
#hibernate.jndi.class com.sun.jndi.fscontext.RefFSContextFactory
#hibernate.jndi.url file:/

#WebSphere
#hibernate.jndi.class com.ibm.websphere.naming.WsnInitialContextFactory
#hibernate.jndi.url iiop://localhost:900/








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Proxool.properties:---


jdbc-0.proxool.alias=property-test
jdbc-0.proxool.driver-url=jdbc:mysql://127.0.0.1:3307/mydb
jdbc-0.proxool.driver-class=com.mysql.jdbc.Driver
jdbc-0.user=root
jdbc-0.password=
jdbc-0.proxool.maximum-connection-count=10
jdbc-0.proxool.house-keeping-test-sql=select CURRENT_DATE