@Test
    void resolveAbsolutelyWithRelativeParentPath() {
        String toResolve = join(SEP, DOT + DOT, RELATIVE_PATH); // ../relative/path

        // '/base/directory' and '../relative/path' to '/base/relative/path'
        Assertions.assertEquals(new File(new File(ABS_BASE_DIR).getParent(), RELATIVE_PATH),
            DockerPathUtil.resolveAbsolutely(toResolve, ABS_BASE_DIR));
    }
The supplied base directory is relative, but isn't used because the supplied path is absolute.
src/test/java/io/fabric8/maven/docker/util/DockerPathUtilTest.java