Takayoshi Kimura [http://community.jboss.org/people/tkimura] created the discussion "Cannot configure valid-connection-checker, causes ClassNotFoundException" To view the discussion, visit: http://community.jboss.org/message/616895#616895 -------------------------------------------------------------- I'm trying to implement JBJCA-634 and hit an issue. Support query timeout for check-valid-connection-sql https://issues.jboss.org/browse/JBJCA-634 https://issues.jboss.org/browse/JBJCA-634 When I configured valid-connection-checker with NullValidConnectionChecker for testing purpose, I got this exception: 12:01:35,859 WARN  [org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory] (JBossConnectionValidator) Exception trying to create connection checker (disabling):: java.lang.ClassNotFoundException: org.jboss.jca.adapters.jdbc.extensions.novendor.NullValidConnectionChecker from [Module "org.jboss.ironjacamar.impl:main" from local module loader @12b7eea (roots: /home/nekop/usr/src/as7/build/target/jboss-as-7.1.0.Alpha1-SNAPSHOT/modules)]     at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:191)     at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:358)     at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:307)     at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:101)     at org.jboss.jca.adapters.jdbc.BaseWrapperManagedConnectionFactory.isValidConnection(BaseWrapperManagedConnectionFactory.java:1034)     at org.jboss.jca.adapters.jdbc.BaseWrapperManagedConnection.checkValid(BaseWrapperManagedConnection.java:449)     at org.jboss.jca.adapters.jdbc.BaseWrapperManagedConnectionFactory.getInvalidConnections(BaseWrapperManagedConnectionFactory.java:918)     at org.jboss.jca.core.connectionmanager.pool.mcp.SemaphoreArrayListManagedConnectionPool.validateConnections(SemaphoreArrayListManagedConnectionPool.java:800) [ironjacamar-core-impl-1.0.0.Final.jar:1.0.0.Final]     at org.jboss.jca.core.connectionmanager.pool.validator.ConnectionValidator$JBossConnectionValidator.run(ConnectionValidator.java:269) [ironjacamar-core-impl-1.0.0.Final.jar:1.0.0.Final]     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) [:1.6.0_22]     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) [:1.6.0_22]     at java.lang.Thread.run(Thread.java:679) [:1.6.0_22] And here is my datasource config: <datasource jndi-name="java:jboss/datasources/ExampleDS" enabled="true" use-java-context="true" pool-name="H2DS" spy="true">   <connection-url>jdbc:h2:mem:test;DB_CLOSE_DELAY=-1</connection-url>   <driver>h2</driver>   <pool>     <min-pool-size>2</min-pool-size>     <max-pool-size>10</max-pool-size>     <prefill>true</prefill>   </pool>   <security>     <user-name>sa</user-name>     <password>sa</password>   </security>   <validation>     <valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.novendor.NullValidConnectionChecker"/> <!--     <valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.CheckValidConnectionSQL">       <config-property name="sql">SELECT 1</config-property>       <config-property name="queryTimeout">20</config-property>     </valid-connection-checker> -->     <validate-on-match>true</validate-on-match>     <background-validation>true</background-validation>     <background-validation-minutes>1</background-validation-minutes>   </validation>   <timeout></timeout>   <statement></statement> </datasource> I've tested this with both AS7 Final and AS7 upstream and got same result. Is this a config issue or a known bug? -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/616895#616895] Start a new discussion in IronJacamar Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]