JON triggers "Could not create connection" warnings in JBoss EAP 6

Issue

Warnings like the below appear with regular frequency (e.g. every five minutes) in the EAP server.log for connections configured with application managed security.

... IJ000604: Throwable while attempting to get a new connection: null: javax.resource.ResourceException: Could not create connection
        at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.getLocalManagedConnection(LocalManagedConnectionFactory.java:282) [ironjacamar-jdbc-1.0.13.Final-redhat-1.jar:1.0.13.Final-redhat-1]
        ...
        at org.jboss.jca.core.connectionmanager.pool.AbstractPool.internalTestConnection(AbstractPool.java:627) [ironjacamar-core-impl-1.0.13.Final-redhat-1.jar:1.0.13.Final-redhat-1]
        at org.jboss.jca.core.connectionmanager.pool.strategy.OnePool.testConnection(OnePool.java:88) [ironjacamar-core-impl-1.0.13.Final-redhat-1.jar:1.0.13.Final-redhat-1]
        ...
        at org.jboss.threads.JBossThread.run(JBossThread.java:122) [jboss-threads-2.0.0.GA-redhat-2.jar:2.0.0.GA-redhat-2]
Caused by: java.sql.SQLException: ORA-01017: invalid username/password; logon denied
        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:445)
        ...
        at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
        at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521)
        at org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.getLocalManagedConnection(LocalManagedConnectionFactory.java:254) [ironjacamar-jdbc-1.0.13.Final-redhat-1.jar:1.0.13.Final-redhat-1]
        ...