return ( RemoteCalculator ) context.lookup(ejb:/ejb-remote-stateless-1.0-SNAPSHOT//CalculatorBean!com.calculator.RemoteCalculator)

return ( RemoteCalculator ) context.lookup(java:/ejb-remote-stateless-1.0-SNAPSHOT//CalculatorBean!com.calculator.RemoteCalculator)

jndiProperties.put( Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory" );

jndiProperties.put( Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory" );

public class EJBClient {
	private static void invokeStatelessBean() throws NamingException {
		RemoteCalculator statelessRemoteCalculator = lookupRemoteStatelessCalculator();
		int sum = statelessRemoteCalculator.add( 3, 4 );
		System.out.println( "sum = " + sum );
	}

	private static RemoteCalculator lookupRemoteStatelessCalculator() throws NamingException {
		final Hashtable<String, String> p = new Hashtable<String, String>();
		p.put( Context.PROVIDER_URL, "remote://127.0.0.1:4447" );
		p.put( Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming" );

		//unnecessary initialization
		p.put( Context.SECURITY_PRINCIPAL, "client" );
		p.put( Context.SECURITY_CREDENTIALS, "client_pass" );
		p.put( Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory" );
		final Context context = new InitialContext( p );

		return ( RemoteCalculator ) context
				.lookup( "ejb:/ejb-remote-stateless-1.0-SNAPSHOT/CalculatorBean!" + RemoteCalculator.class.getName() );
	}

	public static void main( String... args ) {
		try {
			invokeStatelessBean();
		} catch ( NamingException e ) {
			e.printStackTrace();
		}
	}
}

ERROR: JBREM000200: Remote connection failed: javax.security.sasl.SaslException: Authentication failed: all available authentication mechanisms failed

jndiProperties.put( Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory" );

jndiProperties.put( Context.SECURITY_PRINCIPAL, "app_user_login" );
jndiProperties.put( Context.SECURITY_CREDENTIALS, "app_user_pass" );

@WebServlet( name = "CreteFileServlet", urlPatterns = "createCSV" )
public class CreateFileServlet extends javax.servlet.http.HttpServlet {
	@EJB
	FileCreatorBean bean;

	private boolean createFile( String URI ) throws IOException	{
		return bean.createFile( URI );
	}

	protected void doGet( javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response )
			throws javax.servlet.ServletException, IOException {
		response.getWriter().write( "<h1>" + ( createFile( "D:/test.txt" ) ? "True" : "False" ) + "</h1>" ) ;
	}
}

@Stateless( name = "FileCreatorEJB" )
public class FileCreatorBean {
	@PersistenceContext( unitName = "manager1")
	EntityManager entityManager;

	private File file;

	public boolean createFile( String URI ) throws IOException {
		file = File.getInstance( URI );
		entityManager.persist( file );

		return true;
	}
}

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0"
			 xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
			 xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
	<persistence-unit name="manager1" transaction-type="JTA">
		...
	</persistence-unit>
</persistence>

Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: JBAS011047: Component class com.bs.amg.test.session.FileCreatorBean for component FileCreatorEJB has errors: 
JBAS011440: Can't find a persistence unit named manager1 in subdeployment "web-1.0.war" of deployment "ear-1.0.ear"
	at org.jboss.as.ee.component.deployers.ModuleJndiBindingProcessor$1.handle(ModuleJndiBindingProcessor.java:169)
	at org.jboss.as.ee.component.ClassDescriptionTraversal.run(ClassDescriptionTraversal.java:54)
	at org.jboss.as.ee.component.deployers.ModuleJndiBindingProcessor.processClassConfigurations(ModuleJndiBindingProcessor.java:162)
	at org.jboss.as.ee.component.deployers.ModuleJndiBindingProcessor.deploy(ModuleJndiBindingProcessor.java:155)
	at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:113) [jboss-as-server-7.1.1.Final.jar:7.1.1.Final]
	... 5 more

<application version="5" 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/application_5.xsd">
	<module>
		<ejb>ejb-1.0.jar</ejb>
	</module>
	<module>
		<web>
			<web-uri>web-1.0.war</web-uri>
			<context-root>/</context-root>
		</web>
	</module>
</application>

<parent>
		<artifactId>root</artifactId>
		<groupId>com.bs.amg.test</groupId>
		<version>1.0</version>
	</parent>
	<modelVersion>4.0.0</modelVersion>

	<artifactId>ear</artifactId>
	<packaging>ear</packaging>

	<dependencies>
		<dependency>
			<groupId>com.bs.amg.test</groupId>
			<artifactId>ejb</artifactId>
			<version>${project.version}</version>
			<type>jar</type>
		</dependency>
		<dependency>
			<groupId>com.bs.amg.test</groupId>
			<artifactId>web</artifactId>
			<version>${project.version}</version>
			<type>war</type>
		</dependency>
	</dependencies>

<plugin>
	<groupId>org.apache.maven.plugins</groupId>
	<artifactId>maven-resources-plugin</artifactId>
	<version>2.6</version>
	<configuration>
		<resources>
			<resource>resources</resource>
		</resources>
	</configuration>
</plugin>

"urlPatterns = "createCSV"

@WebServlet