check if the proxy setting has username/password set . concode_field_sep List<RemoteRepository> remoteRepositories concode_elem_sep Log log concode_elem_sep String DEFAULT_CONTENT_TYPE concode_elem_sep RepositorySystem repositorySystem concode_elem_sep MavenProperties properties concode_elem_sep Authentication authentication concode_field_sep FileSystemResource toResource concode_elem_sep Artifact toArtifact concode_elem_sep Resource resolve concode_elem_sep RepositorySystem newRepositorySystem concode_elem_sep DefaultRepositorySystemSession newRepositorySystemSession concode_elem_sep void validateCoordinates concode_elem_sep boolean isProxyEnabled