If for whatever reason you want to define the global default concurrency add this to your META-INF/ejb-jar.xml:
<?xml version="1.0"?> <ejb-jar xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_1.xsd" version="3.1"> <enterprise-beans> <session> <ejb-name>*</ejb-name> <concurrency-management-type>Bean</concurrency-management-type> </session> <enterprise-beans> </ejb-jar>
You may need to create the file if it does not exist.
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