Skip to main content

Java EE 5 APIs now in a Maven repository...

Posted by ludo on January 16, 2007 at 8:58 PM PST

Bonjour, comment Java?



Finally, the Java EE 5 API jar has been published via a Maven
repository:  

Check href="https://maven-repository.dev.java.net/nonav/repository/javaee/">https://maven-repository.dev.java.net/nonav/repository/javaee/




So if you get this api jar file, you can compile the following class:

import javax.jms.Queue;
import javax.persistence.Entity;
import javax.mail.Session;
public class Foo {
    public static void main(String[] args) {       
Queue queue = null;       
Session.getInstance(null);
    }
}


In a Maven project defined by this pom file: (notice the scope value
which is 'provided')

? class="xml-pi-start">xml  class="xml-pi-content">version="1.0" encoding="UTF-8" class="xml-pi-start">?>
 class="xml-tag"><project  class="xml-attribute">xmlns class="xml-attribute">= class="xml-value">"http://maven.apache.org/POM/4.0.0"
 class="xml-attribute">xmlns:xsi class="xml-attribute">= class="xml-value">"http://www.w3.org/2001/XMLSchema-instance"
 class="xml-attribute">xsi:schemaLocation class="xml-attribute">= class="xml-value">"http://maven.apache.org/POM/4.0.0 " title="http://maven.apache.org/maven-v4_0_0.xsd"">http://maven.apache.org/maven-v4_0_0.xsd" class="xml-tag">>
 class="xml-tag">	<modelVersion class="xml-tag">>4.0.0 class="xml-tag"></modelVersion class="xml-tag">>
 class="xml-tag">	<groupId class="xml-tag">>foo class="xml-tag"></groupId class="xml-tag">>
 class="xml-tag">	<artifactId class="xml-tag">>bar class="xml-tag"></artifactId class="xml-tag">>
 class="xml-tag">	<version class="xml-tag">>1.0-SNAPSHOT class="xml-tag"></version class="xml-tag">>
 class="xml-tag">	<packaging class="xml-tag">>jar class="xml-tag"></packaging class="xml-tag">>
 class="xml-tag">	<description class="xml-tag">>Java source code generation library class="xml-tag"></description class="xml-tag">>  class="xml-tag">
	<dependencies class="xml-tag">>
 class="xml-tag">		<dependency class="xml-tag">>
 class="xml-tag">			<groupId class="xml-tag">>javaee class="xml-tag"></groupId class="xml-tag">>
 class="xml-tag">			<artifactId class="xml-tag">>javaee-api class="xml-tag"></artifactId class="xml-tag">>
 class="xml-tag">			<version class="xml-tag">>5 class="xml-tag"></version class="xml-tag">>
 class="xml-tag">			<scope class="xml-tag">>provided class="xml-tag"></scope class="xml-tag">>
 class="xml-tag">		</dependency class="xml-tag">>
 class="xml-tag">	</dependencies class="xml-tag">>
 class="xml-tag"></project>

You can compile you code with this jar, but of course you cannnot run
your application with it since it contains only the Java EE 5
APIs and does not contain any method bodies. If you try to
run, you would get this exception:



 
 Exception in thread "main" java.lang.ClassFormatError: style="font-style: italic;">
  Absent Code
attribute in method that is not native or abstract in class file
javax/mail/Session



In order to execute a Java EE 5 application, you'll still need a Java
EE 5 container, like for example the href="https://glassfish.dev.java.net">GlassFish application
server.

Ludo

Blog Links >>