Testing against Java EE 6 API

Question

I write an addition to JAX-RS and included the Java EE 6 API as a Maven dependency.

<dependency>     <groupId>javax</groupId>     <artifactId>javaee-api</artifactId>     <version>6.0</version>     <scope>provided</scope> </dependency> 

Then I have a little test case:

  @Test   public void testIsWriteable() {     class SpecialViewable extends Viewable {       public SpecialViewable() {         super("test");       }     }     FreeMarkerViewProcessor processor = new FreeMarkerViewProcessor(null);     assertTrue(processor.isWriteable(SpecialViewable.class, null, null,             MediaType.WILDCARD_TYPE));   } 

But I get an error:

java.lang.ClassFormatError: Absent Code attribute in method that is not native or abstract in class file javax/ws/rs/core/MediaType     ... 

If I include Jersey as a JAX-RS implementation instead of the Java EE API everything is fine.

Thanks to BalusC's hint I know what I had guessed: Java EE 6 is only an API without method bodies: From the java.net blog

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: 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 GlassFish application server.

I've tried to add Jersy with test scope but it didn't work.

<dependency>     <groupId>javax</groupId>     <artifactId>javaee-api</artifactId>     <version>6.0</version>     <scope>provided</scope> </dependency> <dependency>     <groupId>com.sun.jersey</groupId>     <artifactId>jersey-server</artifactId>     <version>${jersey-version}</version>     <scope>test</scope> </dependency> 

How can I test software that depends only on the official Java EE API?

Solution

The provider (Jersey) needs to be placed before the API (javeee-api) in the pom.xml.

<dependency>     <groupId>com.sun.jersey</groupId>     <artifactId>jersey-server</artifactId>     <version>${jersey-version}</version>     <scope>test</scope> </dependency> <dependency>     <groupId>javax</groupId>     <artifactId>javaee-api</artifactId>     <version>6.0</version>     <scope>provided</scope> </dependency> 

Answer 1

Not sure this will solve your problem but GlassFish Embedded provides a Java EE 6 implementation. Add this to your pom.xml:

<project>   ...   <repositories>     <repository>       <id>glassfish-extras-repository</id>       <url>http://download.java.net/maven/glassfish/org/glassfish/extras</url>     </repository>   </repositories>   ...   <dependencies>     <dependency>       <groupId>org.glassfish.extras</groupId>       <artifactId>glassfish-embedded-all</artifactId>       <version>3.0.1</version>       <scope>test</scope>     </dependency>     <dependency>       <groupId>javax</groupId>       <artifactId>javaee-api</artifactId>       <version>6.0</version>       <scope>provided</scope>     </dependency>     ...   </dependencies>   ... </project> 

It's important to declare the glassfish-embedded-all artifact before the javaee-api.