Hi,
I got NullPointer Exception When try to create the Connection Poll
for MySQL DataBase, I have listed the changes what I made, whatz wrong
with my setup..Using JBoss2.2.2
Entries added to jboss.jcml
Step 1
<!-- JDBC -->
<mbean code="org.jboss.jdbc.JdbcProvider"
name="DefaultDomain:service=JdbcProvider">
<attribute
name="Drivers">org.gjt.mm.mysql.Driver,org.hsql.jdbcDriver,org.enhydra.instantdb.jdbc.idbDriver</attribute>
</mbean>
<mbean code="org.jboss.jdbc.XADataSourceLoader"
name="DefaultDomain:service=XADataSource,name=WebNmsDB">
<attribute name="PoolName">WebNmsDB</attribute>
<attribute
name="DataSourceClass">org.opentools.minerva.jdbc.xa.wrapper.XADataSourceImpl</attribute>
<attribute name="URL">jdbc:mysql://localhost/WebNmsDB</attribute>
<attribute name="JDBCUser">root</attribute>
<attribute name="Password"> </attribute>
<attribute name="MaxSize">10</attribute>
<attribute name="MinSize">1</attribute>
</mbean>
Step 2
Added driver mysql_comp.jar under ../lib/ext
Exception :
[WebNmsDB] Starting
[WebNmsDB] XA Connection pool WebNmsDB bound to java:/WebNmsDB
[WebNmsDB] Stopped
[WebNmsDB] java.lang.NullPointerException
[WebNmsDB] at
org.opentools.minerva.jdbc.xa.XAPoolDataSource.getConnection(XAPoolDataSource.java:165)
[WebNmsDB] at
org.jboss.jdbc.XADataSourceLoader.startService(XADataSourceLoader.java:330)
[WebNmsDB] at
org.jboss.util.ServiceMBeanSupport.start(ServiceMBeanSupport.java:93)
[WebNmsDB] at java.lang.reflect.Method.invoke(Native Method)
[WebNmsDB] at
com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1628)
[WebNmsDB] at
com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1523)
[WebNmsDB] at
org.jboss.util.ServiceControl.start(ServiceControl.java:97)
[WebNmsDB] at java.lang.reflect.Method.invoke(Native Method)
[WebNmsDB] at
com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1628)
[WebNmsDB] at
com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1523)
[WebNmsDB] at org.jboss.Main.<init>(Main.java:217)
[WebNmsDB] at org.jboss.Main$1.run(Main.java:121)
[WebNmsDB] at java.security.AccessController.doPrivileged(Native
Method)
[WebNmsDB] at org.jboss.Main.main(Main.java:117)
[Service Control] Could not start
DefaultDomain:service=XADataSource,name=WebNmsDB
[Service Control] java.lang.NullPointerException
[Service Control] at
org.opentools.minerva.jdbc.xa.XAPoolDataSource.getConnection(XAPoolDataSource.java:165)
[Service Control] at
org.jboss.jdbc.XADataSourceLoader.startService(XADataSourceLoader.java:330)
[Service Control] at
org.jboss.util.ServiceMBeanSupport.start(ServiceMBeanSupport.java:93)
[Service Control] at java.lang.reflect.Method.invoke(Native
Method)
[Service Control] at
com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1628)
[Service Control] at
com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1523)
[Service Control] at
org.jboss.util.ServiceControl.start(ServiceControl.java:97)
[Service Control] at java.lang.reflect.Method.invoke(Native
Method)
[Service Control] at
com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1628)
[Service Control] at
com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1523)
[Service Control] at org.jboss.Main.<init>(Main.java:217)
[Service Control] at org.jboss.Main$1.run(Main.java:121)
[Service Control] at
java.security.AccessController.doPrivileged(Native Method)
[Service Control] at org.jboss.Main.main(Main.java:117)
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