Hai all,
        I am trying to create database pool for sql server using freetds
driver.I downloaded freetds_jdbc.jar from freetds.org site and I put this
jar in $JBOSSHOME/lib/ext  directory. I also added freetds driver i,e
"com.internetcds.jdbc.tds.Driver"  to Drivers list in Jboss.jcml file. My
pool code in jcml file is

<mbean code="org.jboss.jdbc.XADataSourceLoader"
name="DefaultDomain:service=XADataSource,name=EChequeBankPool">
    <attribute name="PoolName">EChequeBankPool</attribute>
    <attribute
name="DataSourceClass">org.opentools.minerva.jdbc.xa.wrapper.XADataSourceImp
l</attribute>
    <attribute name="Properties"></attribute>
    <attribute
name="URL">jdbc:freetds:sqlserver://172.16.16.251:1433/EChequeBank;TDS=7.0</
attribute>
    <attribute name="GCMinIdleTime">1200000</attribute>
    <attribute name="JDBCUser">bank</attribute>
    <attribute name="MaxSize">20</attribute>
    <attribute name="Password">bank</attribute>
    <attribute name="GCEnabled">false</attribute>
    <attribute name="InvalidateOnError">false</attribute>
    <attribute name="TimestampUsed">false</attribute>
    <attribute name="Blocking">true</attribute>
    <attribute name="GCInterval">120000</attribute>
    <attribute name="IdleTimeout">1800000</attribute>
    <attribute name="IdleTimeoutEnabled">false</attribute>
    <attribute name="LoggingEnabled">true</attribute>
    <attribute name="MaxIdleTimeoutPercent">1.0</attribute>
    <attribute name="MinSize">0</attribute>
  </mbean>


But if I start the server, it will hang while creating the pool (I,e
EChequeBankPool ). It will not  move further.The error which i am getting is



 [InstantDB] Started
[DefaultDS] Starting
[DefaultDS] XA Connection pool DefaultDS bound to java:/DefaultDS
[DefaultDS] Started
[EChequeBankPool] Starting
[EChequeBankPool] XA Connection pool EChequeBankPool bound to
java:/EChequeBankP
ool
[EChequeBankPool] Exception- java.lang.NullPointerException
[EChequeBankPool] java.sql.SQLException
[EChequeBankPool] Pool EChequeBankPool factory
org.opentools.minerva.jdbc.xa.XAC
onnectionFactory@6b2c1b unable to create new object!
[EChequeBankPool] Pool EChequeBankPool [0/0/20] waiting for a free object



Can any body give me the solution for this exception

Thanks
Rama Rao




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