Hey,
once in a while I get the following error when I fetch a connection from the
pool (using JBoss 3.2.6 and Oracle 9i)
[JBossManagedConnectionPool] Unable to fill pool
org.jboss.resource.JBossResourceException: Could not create connection; -
nested throwable: (java.lang.NullPointerException)
at
org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:168)
at
org.jboss.resource.connectionmanager.InternalManagedConnectionPool.createConnectionEventListener(InternalManagedConnectionPool.java:508)
at
org.jboss.resource.connectionmanager.InternalManagedConnectionPool.fillToMin(InternalManagedConnectionPool.java:455)
at
org.jboss.resource.connectionmanager.PoolFiller.run(PoolFiller.java:69)
at java.lang.Thread.run(Thread.java:534)
Caused by: java.lang.NullPointerException
at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:143)
at
org.jboss.mx.loading.UnifiedClassLoader3.loadClassImpl(UnifiedClassLoader3.java:186)
at
org.jboss.mx.loading.UnifiedClassLoader3.loadClass(UnifiedClassLoader3.java:136)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:141)
at oracle.net.ns.NetException.(Unknown Source)
at oracle.net.ano.Ano.e(Ano)
at oracle.net.ano.Ano.init(Ano)
at oracle.net.ns.NSProtocol.connect(Unknown Source)
at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:708)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:219)
at oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:344)
at oracle.jdbc.driver.T4CConnection.(T4CConnection.java:148)
at
oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:545)
at
org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:158)
... 4 more
15:52:38,148 WARN [JBossManagedConnectionPool] Unable to fill pool
org.jboss.resource.JBossResourceException: Could not create connection; -
nested throwable: (java.lang.NullPointerException)
at
org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:168)
at
org.jboss.resource.connectionmanager.InternalManagedConnectionPool.createConnectionEventListener(InternalManagedConnectionPool.java:508)
at
org.jboss.resource.connectionmanager.InternalManagedConnectionPool.fillToMin(InternalManagedConnectionPool.java:455)
at
org.jboss.resource.connectionmanager.PoolFiller.run(PoolFiller.java:69)
at java.lang.Thread.run(Thread.java:534)
Caused by: java.lang.NullPointerException
at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:143)
at
org.jboss.mx.loading.UnifiedClassLoader3.loadClassImpl(UnifiedClassLoader3.java:186)
at
org.jboss.mx.loading.UnifiedClassLoader3.loadClass(UnifiedClassLoader3.java:136)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:141)
at oracle.net.ns.NetException.(Unknown Source)
at oracle.net.ano.Ano.e(Ano)
at oracle.net.ano.Ano.init(Ano)
at oracle.net.ns.NSProtocol.connect(Unknown Source)
at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:708)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:219)
at oracle.jdbc.driver.PhysicalConnection.(PhysicalConnection.java:344)
at oracle.jdbc.driver.T4CConnection.(T4CConnection.java:148)
at
oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:545)
at
org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:158)
... 4 more
So my oracle-ds-xml look like this:
<?xml version="1.0" encoding="UTF-8"?>
<local-tx-datasource>
<jndi-name>jdbc/ignis/trinity/elsdemob</jndi-name>
<use-java-context>false</use-java-context>
<connection-url>jdbc:oracle:thin:@trinity:1521:elsdemob</connection-url>
<driver-class>oracle.jdbc.driver.OracleDriver</driver-class>
<...>
<min-pool-size>5</min-pool-size>
<max-pool-size>20</max-pool-size>
<blocking-timeout-millis>5000</blocking-timeout-millis>
<idle-timeout-minutes>15</idle-timeout-minutes>
<type-mapping>Oracle9i</type-mapping>
</local-tx-datasource>
<local-tx-datasource>
<jndi-name>jdbc/ignis/beryll/ignis_s</jndi-name>
<use-java-context>false</use-java-context>
<connection-url>jdbc:oracle:thin:@beryll:1521:ignis_s</connection-url>
<driver-class>oracle.jdbc.driver.OracleDriver</driver-class>
<...>
<min-pool-size>5</min-pool-size>
<max-pool-size>20</max-pool-size>
<blocking-timeout-millis>5000</blocking-timeout-millis>
<idle-timeout-minutes>15</idle-timeout-minutes>
<type-mapping>Oracle9i</type-mapping>
</local-tx-datasource>
If I access the JMX Management Console and stop and restart the
ManagedConnectionPool, then everything works fine again.
Any help?
Louis
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