if (id.getTags().getPositionalTags().isEmpty()) throw new UserException.BadInput("BAMs must be tagged with " + GENOTYPE_BAM_TAG + " and " + EVAL_BAM_TAG + " when running in array-free mode. Please see the ContEst documentation for more details"); for (String tag : id.getTags().getPositionalTags()) { if (GENOTYPE_BAM_TAG.equalsIgnoreCase(tag)) { try {