garyrussell/spring-integration — comment on commit c9b1186233c1a91ee13fcf9b24fa902d1795f945
File: spring-integration-jms/src/main/java/org/springframework/integration/jms/config/JmsChannelParser.java line 121
By garyrussell:

Core

if (!"".equals(containerClass)) {
containerDef.setBeanClassName(containerClass);
}
else if ("".equals(containerType) || "default".equals(containerType)) {
containerDef.setBeanClassName("org.springframework.jms.listener.DefaultMessageListenerContainer");
}
...