[INFO] Scanning for projects...
[WARNING]
[WARNING] Some problems were encountered while building the effective model for org.jvnet.hudson.plugins:greenballs:hpi:1.7-SNAPSHOT
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-resources-plugin is missing. @ line 90, column 15
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-compiler-plugin is missing. @ line 84, column 15
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-surefire-plugin is missing. @ org.jvnet.hudson.plugins:plugin:1.343, line 179, column 15
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-enforcer-plugin is missing. @ org.jvnet.hudson:hudson:1.7, line 69, column 15
[WARNING] 'distributionManagement.snapshotRepository.id' must not be 'local', this identifier is reserved for the local repository, using it for other repositories will corrupt your repository metadata. @ org.jvnet.hudson:hudson:1.7, line 52, column 11
[WARNING]
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING]
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING]