Arquillian should fail-fast when adding the same resource twice to an archive made with ExplodedImporter.class -------------------------------------------------------------------------------------------------------------- Key: SHRINKWRAP-329 URL: https://issues.jboss.org/browse/SHRINKWRAP-329 Project: ShrinkWrap Issue Type: Bug Reporter: Geoffrey De Smet Priority: Minor This didn't fail fast for me: {code} @Deployment public static WebArchive createDeployment() { WebArchive webArchive = ShrinkWrap.create(ExplodedImporter.class, "guvnor-webapp-5.3.0-SNAPSHOT.war") .importDirectory(new File("target/guvnor-webapp-5.3.0-SNAPSHOT/")) // already contains WEB-INF/classes/META-INF/beans.xml .as(WebArchive.class) .addAsResource(new File("target/test-classes/META-INF/test-beans.xml"), "WEB-INF/classes/META-INF/beans.xml") ... return webArchive; } {code} Surprisingly, the second beans.xml didn't even overwrite the first one either. The second beans.xml was just ignored.