NationalSecurityAgency/ghidra · error · LSHException

Duplicate ${type} entry specified: ${name}

Error message

Duplicate ${type} entry specified: ${name}

What it means

checkStrings builds a Set and rejects any name already present (case-sensitive) with LSHException("Duplicate <type> entry specified: <name>").

Source

Thrown at Ghidra/Features/BSim/src/main/java/ghidra/features/bsim/query/elastic/ElasticDatabase.java:2903

			config.info.execats = query.info.execats;
		}
		generate(config);
		response.info = config.info;
	}

	private static void checkStrings(List<String> list, String type, int limit)
			throws LSHException {
		if (limit > 0 && list.size() > limit) {
			throw new LSHException("Too many " + type + " specified (limit=" +
				FunctionTagBSimFilterType.MAX_TAG_COUNT + "): " + list.size());
		}
		Set<String> names = new HashSet<>();
		for (String name : list) {
			if (!CategoryRecord.enforceTypeCharacters(name)) {
				throw new LSHException("Bad characters in one or more proposed " + type);
			}
			if (!names.add(name)) {
				throw new LSHException("Duplicate " + type + " entry specified: " + name);
			}
		}
	}

	/**
	 * Entry point for the InstallCategoryRequest command:
	 *   Install a new executable category to be managed by the database
	 * @param query is command parameters
	 * @throws LSHException if the command is misconfigured
	 * @throws ElasticException for communication problems with the server
	 */
	private void fdbInstallCategory(InstallCategoryRequest query)
			throws LSHException, ElasticException {
		ResponseInfo response = query.installresponse;
		if (!CategoryRecord.enforceTypeCharacters(query.type_name)) {
			throw new LSHException("Bad characters in proposed category type");
		}
		if (query.isdatecolumn) {

View on GitHub (pinned to d5f144c24d)

Solutions

1. Dedupe the list before submission.
2. Build the collection with a LinkedHashSet to preserve order while dropping duplicates.

Example fix

// before
List<String> cats = merge(cliCats, fileCats); // dupes present
query.info.execats = cats;
// after
List<String> cats = new ArrayList<>(new LinkedHashSet<>(merge(cliCats, fileCats)));
query.info.execats = cats;

// Detect dupes before sending.
Set<String> seen = new HashSet<>();
for (String n : list) if (!seen.add(n)) throw new IllegalArgumentException("Duplicate: " + n);

boolean noDupes = list.size() == new HashSet<>(list).size();

When it happens

Trigger: A category/tag list passed to checkStrings containing the same exact string more than once.

Common situations: Merging multiple config sources (CLI flags plus a file) without dedup; case-sensitive near-duplicates that look different but collide.

Related errors

• Executable
• Expecting privilege option (admin or user)
• host required
• Non-empty dbName required
• Invalid {} dbName: {}

AI-assisted analysis of NationalSecurityAgency/ghidra@d5f144c24d (2026-08-14). Data as JSON: /api/errors/fdf44b062382e0c0. Report an issue: GitHub.