<BUG>builder.add(new SourcePathArg(libs.get(index)));</BUG><CONTEXT>throw new HumanReadableException("%s: ", target);}if (index < 0 || index >= libs.size()) {throw new HumanReadableException("%s: ", target);}<extra_id_0>} else {builder.add(StringArg.of(arg));}</CONTEXT>
builder.add(SourcePathArg.of(libs.get(index)));