Download offline repository from https://access.redhat.com/solutions/1599973 . Run attached simple project with JBDS9 and java8 in offline environment. It try to download maven dependencies with version 2.0.7, ideally it should not as we are using offline repository. In offline environment, following error is received while building project: Unresolveable build extension: Plugin org.apache.felix:maven-bundle-plugin:2.3.7 or one of its dependencies could not be resolved: The following artifacts could not be resolved: org.apache.maven:maven-model:jar:2.0.7, org.apache.maven:maven-project:jar:2.0.7, org.apache.maven:maven-plugin-registry:jar:2.0.7, org.apache.maven:maven-plugin-api:jar:2.0.7: Could not transfer artifact org.apache.maven:maven-model:jar:2.0.7 from/to release.fusesource.org (http: //repo.fusesource.com/nexus/content/repositories/releases): repo.fusesource.com: unknown error: Unknown host repo.fusesource.com: unknown error -> [Help 2] [ERROR] Unknown packaging: bundle @ line 8, column 14 I checked in a system with internet availability and found that it tries to download following maven dependency: [root@dhcp3-200 maven]# cd /home/cpandey/.m2/repository/org/apache/maven/maven-project/2.0.7/ [root@dhcp3-200 2.0.7]# ls -ltr total 132 -rw-r--r--. 1 cpandey cpandey 40 Jun 4 2009 maven-project-2.0.7.pom.sha1 -rw-r--r--. 1 cpandey cpandey 2637 Jun 4 2009 maven-project-2.0.7.pom -rw-rw-r--. 1 cpandey cpandey 116546 Apr 20 12:05 maven-project-2.0.7.jar -rw-rw-r--. 1 cpandey cpandey 40 Apr 20 12:05 maven-project-2.0.7.jar.sha1 -rw-rw-r--. 1 cpandey cpandey 166 Apr 20 12:05 _remote.repositories [root@dhcp3-200 2.0.7]# ls -ltr total 104 -rw-r--r--. 1 cpandey cpandey 40 Jun 8 2009 maven-model-2.0.7.pom.sha1 -rw-r--r--. 1 cpandey cpandey 3047 Jun 8 2009 maven-model-2.0.7.pom -rw-rw-r--. 1 cpandey cpandey 86438 Apr 20 12:05 maven-model-2.0.7.jar -rw-rw-r--. 1 cpandey cpandey 40 Apr 20 12:05 maven-model-2.0.7.jar.sha1 -rw-rw-r--. 1 cpandey cpandey 164 Apr 20 12:05 _remote.repositories [root@dhcp3-200 2.0.7]# ls -ltr total 48 -rw-r--r--. 1 cpandey cpandey 40 Jun 8 2009 maven-plugin-registry-2.0.7.pom.sha1 -rw-r--r--. 1 cpandey cpandey 1946 Jun 8 2009 maven-plugin-registry-2.0.7.pom -rw-rw-r--. 1 cpandey cpandey 28925 Apr 20 12:05 maven-plugin-registry-2.0.7.jar -rw-rw-r--. 1 cpandey cpandey 40 Apr 20 12:05 maven-plugin-registry-2.0.7.jar.sha1 -rw-rw-r--. 1 cpandey cpandey 174 Apr 20 12:05 _remote.repositories [root@dhcp3-200 2.0.7]# ls -ltr total 32 -rw-r--r--. 1 cpandey cpandey 40 Nov 16 2009 maven-plugin-api-2.0.7.pom.sha1 -rw-r--r--. 1 cpandey cpandey 1455 Nov 16 2009 maven-plugin-api-2.0.7.pom -rw-rw-r--. 1 cpandey cpandey 12860 Apr 20 12:05 maven-plugin-api-2.0.7.jar -rw-rw-r--. 1 cpandey cpandey 40 Apr 20 12:05 maven-plugin-api-2.0.7.jar.sha1 -rw-rw-r--. 1 cpandey cpandey 169 Apr 20 12:05 _remote.repositories When checked with JBDS 8.1 and java7, I don't see these jar getting download and build is successful.