String () { if (!isBranchInfoAvailable()) return null; String[] branchesWithHeads; try { branchesWithHeads = DvcsUtil.tryLoadFile(myBranchHeadsFile).split("\n"); } catch (RepoStateException e) { LOG.error(e); return null; } String head = branchesWithHeads[0]; Matcher matcher = HASH_NAME.matcher(head); if (matcher.matches()) { return (matcher.group(1)); } return null; }