EXECUTE: Create dynamic web project with EAP 5.1 as targeted runtime in fresh workspace EXECUTE: Create new variable pointing to jaxrs-api.jar located in EAP 5.1 (project Properties -> Java Build Path -> Libraries -> Add Variable) EXECUTE: Add this Variable/External Jar to the project class path EXECUTE: Add JAX-RS 1.1 support to the project ASSERT: JAX-RS 1.1 is correctly added to the project and JAX-RS explorer can be viewed in Project Explorer EXECUTE: Delete the project (also from workspace) EXECUTE: Create another project with the same way as the project before ASSERT: JAX-RS 1.1 is correctly added also to this second project and JAX-RS explorer can be viewed in Project Explorer FAIL: There is "Rebuilding" dialog that gets stuck => JAX-RS 1.1 support addition fails