Oracle Streams AQ. session.getQueue throwing AQOracleSQLException: Exhausted Resultset

Using Oracle Streams AQ in a multithreaded/multi-app environment I received an AQOracleSQLException: Exhausted Resultset after about 10 minutes of operation in one thread only.

oracle.AQ.AQOracleSQLException: Exhausted Resultset
        at oracle.AQ.AQOracleSession.getQueue(AQOracleSession.java:751)
        at au.com.xxx.queue.OracleQueue$$anonfun$2.apply(OracleQueue.scala:53)

The AQOracleSession is pooled via Spring as follows:

<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
    <property name="jndiName" value="jdbc/MessageManagerDB"/>
</bean>

<bean id="aqSessionFactory" class="au.com.xxx.queue.AQSessionFactory">
    <constructor-arg ref="dataSource"/>
</bean>

<bean id="aqSessionTarget" factory-bean="aqSessionFactory" 
    factory-method="createAQSession" scope="prototype"/>

<bean id="aqSessionPoolTargetSource" 
    class="org.springframework.aop.target.CommonsPoolTargetSource">
    <property name="targetBeanName" value="aqSessionTarget"/>
    <property name="maxSize" value="25"/>
</bean>

<bean id="aqSession" class="org.springframework.aop.framework.ProxyFactoryBean">
    <property name="targetSource" ref="aqSessionPoolTargetSource"/>
</bean>

With the factory method createAQSession being (in Scala):

def createAQSession = {
  val wasConnection = dataSource.getConnection.asInstanceOf[WSJdbcConnection]
  val connection = WSCallHelper.getNativeConnection(wasConnection).asInstanceOf[Connection]
  SessionWithConnection(AQDriverManager.createAQSession(connection), connection)
  // SessionWithConnection is just a case class akin to 
  // Tuple2[AQOracleSession, Connection]
}

The exception was thrown from the final line of the this block:

def sessionAndConnection = {
  applicationContext.getBean("aqSession").asInstanceOf[SessionWithConnectionI]
}

def write(category: String, relatedId: Option[String], payload: String): Array[Byte] = {
  val (session, conn) = {
    val sc = sessionAndConnection
    (sc.session, sc.connection)
  }
  val queueDef = dao.queueForWriting(category, relatedId).map{_.name}
  val queue = queueDef.map{name => session.getQueue("QUSR", name)}

Obviously, I am not directly handling the ResultSet used within AQOracleSession.

I am using the Connection associated with the Session, but this is not until later in the same method, and so can't be at fault here:

val clob = CLOB.createTemporary(conn, true, CLOB.DURATION_SESSION)

Is it possible that the pooling config is not correct and there was some concurrent operations on the sa开发者_JS百科me session? There was nothing unusual in the other logs at all.

This is a defect with the v10 driver, which I was using by mistake. v11 RDBMS driver does not have this problem.