Hi
Using an ironjacamar.xml with 2 ConnectionDefinitions, IJ 1.4.6-Final is recognizing/parsing only the first one as displayed by the trace:
2018-01-04 09:36:47,642 DEBUG [org.jboss.as.connector.deployers.RADeployer] (MSC service thread 1-7) ConnectionDefinitions: 1

2018-01-04 09:36:47,580 TRACE [org.jboss.as.connector.deployers.RADeployer] (MSC service thread 1-7) Activation=<ironjacamar><transaction-support>LocalTransaction</transaction-support><connection-definitions><connection-definition class-name="com.scort.ctg.cics.eci.jca.EciManagedConnectionFactory" jndi-name="java:jboss/eis/dmconnectionFactory" enabled="true" use-java-context="true" pool-name="dmconnectionFactory" use-ccm="true" sharable="true" enlistment="true" connectable="false" enlistment-trace="false"><config-property name="connectionUrl">tcp://localhost:2006</config-property><config-property name="serverName">ECI111</config-property><pool><min-pool-size>0</min-pool-size><max-pool-size>100</max-pool-size><prefill>false</prefill><use-strict-min>false</use-strict-min><flush-strategy>FailingConnectionOnly</flush-strategy></pool><timeout><blocking-timeout-millis>0</blocking-timeout-millis><idle-timeout-minutes>0</idle-timeout-minutes></timeout><validation><background-validation>false</background-validation><use-fast-fail>false</use-fast-fail></validation></connection-definition><connection-definition class-name="com.scort.ctg.cics.eci.bridge3270.Bridge3270ManagedConnectionFactory" jndi-name="java:jboss/eis/ftconnectionFactory" enabled="true" use-java-context="true" pool-name="ftconnectionFactory" use-ccm="true" sharable="true" enlistment="true" connectable="false" enlistment-trace="false"><config-property name="connectionUrl">tcp://localhost:2006</config-property><config-property name="serverName">ECI111</config-property><xa-pool><min-pool-size>0</min-pool-size><max-pool-size>100</max-pool-size><prefill>false</prefill><use-strict-min>false</use-strict-min><flush-strategy>FailingConnectionOnly</flush-strategy><pad-xid>false</pad-xid><wrap-xa-resource>true</wrap-xa-resource></xa-pool><timeout><blocking-timeout-millis>0</blocking-timeout-millis><idle-timeout-minutes>0</idle-timeout-minutes></timeout><validation><background-validation>false</background-validation><use-fast-fail>false</use-fast-fail></validation></connection-definition></connection-definitions></ironjacamar>
2018-01-04 09:36:47,580 TRACE [org.jboss.as.connector.deployers.RADeployer] (MSC service thread 1-7) ActivateDeployment=true
2018-01-04 09:36:47,627 TRACE [org.jboss.as.connector.deployers.RADeployer] (MSC service thread 1-7) ResourceAdapter: com.scort.ctg.cics.eci.jca.EciResourceAdapter
2018-01-04 09:36:47,627 TRACE [org.jboss.as.connector.deployers.RADeployer] (MSC service thread 1-7) ResourceAdapter defined in classloader: ModuleClassLoader for Module "deployment.AcctFtCics-ear-1.0.0.ear.scortcicsecirar-3.1.0.rar" from Service Module Loader
2018-01-04 09:36:47,627 DEBUG [org.jboss.as.connector.deployers.RADeployer] (MSC service thread 1-7) CdMeta: <connection-definition><managedconnectionfactory-class>com.scort.ctg.cics.eci.jca.EciManagedConnectionFactory</managedconnectionfactory-class><config-property><description>URL of the CTG</description><config-property-name>connectionUrl</config-property-name><config-property-type>java.lang.String</config-property-type></config-property><config-property><description>Server (CICS) Name</description><config-property-name>serverName</config-property-name><config-property-type>java.lang.String</config-property-type></config-property><connectionfactory-interface>javax.resource.cci.ConnectionFactory</connectionfactory-interface><connectionfactory-impl-class>com.scort.ctg.cics.eci.jca.EciConnectionFactory</connectionfactory-impl-class><connection-interface>javax.resource.cci.Connection</connection-interface><connection-impl-class>com.scort.ctg.cics.eci.jca.EciConnection</connection-impl-class></connection-definition>
2018-01-04 09:36:47,642 DEBUG [org.jboss.as.connector.deployers.RADeployer] (MSC service thread 1-7) ConnectionDefinitions: 1

Below is a formatted Activation content extracted from the trace 2018-01-04 09:36:47,580 TRACE [org.jboss.as.connector.deployers.RADeployer] (MSC service thread 1-7) Activation=

<ironjacamar>
<transaction-support>LocalTransaction</transaction-support>
<connection-definitions>
<connection-definition
class-name="com.scort.ctg.cics.eci.jca.EciManagedConnectionFactory"
jndi-name="java:jboss/eis/dmconnectionFactory" enabled="true"
use-java-context="true" pool-name="dmconnectionFactory" use-ccm="true"
sharable="true" enlistment="true" connectable="false"
enlistment-trace="false">
<config-property name="connectionUrl">tcp://localhost:2006
</config-property>
<config-property name="serverName">ECI111</config-property>
<pool>
<min-pool-size>0</min-pool-size>
<max-pool-size>100</max-pool-size>
<prefill>false</prefill>
<use-strict-min>false</use-strict-min>
<flush-strategy>FailingConnectionOnly</flush-strategy>
</pool>
<timeout>
<blocking-timeout-millis>0</blocking-timeout-millis>
<idle-timeout-minutes>0</idle-timeout-minutes>
</timeout>
<validation>
<background-validation>false</background-validation>
<use-fast-fail>false</use-fast-fail>
</validation>
</connection-definition>
<connection-definition
class-name="com.scort.ctg.cics.eci.bridge3270.Bridge3270ManagedConnectionFactory"
jndi-name="java:jboss/eis/ftconnectionFactory" enabled="true"
use-java-context="true" pool-name="ftconnectionFactory" use-ccm="true"
sharable="true" enlistment="true" connectable="false"
enlistment-trace="false">
<config-property name="connectionUrl">tcp://localhost:2006
</config-property>
<config-property name="serverName">ECI111</config-property>
<xa-pool>
<min-pool-size>0</min-pool-size>
<max-pool-size>100</max-pool-size>
<prefill>false</prefill>
<use-strict-min>false</use-strict-min>
<flush-strategy>FailingConnectionOnly</flush-strategy>
<pad-xid>false</pad-xid>
<wrap-xa-resource>true</wrap-xa-resource>
</xa-pool>
<timeout>
<blocking-timeout-millis>0</blocking-timeout-millis>
<idle-timeout-minutes>0</idle-timeout-minutes>
</timeout>
<validation>
<background-validation>false</background-validation>
<use-fast-fail>false</use-fast-fail>
</validation>
</connection-definition>
</connection-definitions>
</ironjacamar>