public void test_throwAndCatchWithCause() {
        // Test throwing and catching the exception with cause
        String expectedMessage = "System error occurred";
        Exception expectedCause = new IllegalStateException("Invalid state");

        try {
            throw new FessSystemException(expectedMessage, expectedCause);
        } catch (FessSystemException e) {
            assertEquals(expectedMessage, e.getMessage());

            if (logger.isDebugEnabled()) {
                logger.debug("Invalid query: {}", form.q, e);
            }
            throwValidationError(e.getMessageCode(), this::asListHtml);
        } catch (final ResultOffsetExceededException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Invalid offset: {}", form.offset, e);
            }

     * @param attributes the attributes attached to the element
     * @throws SAXException if a SAX error occurs or if the XML format is invalid
     */
    @Override
    public void startElement(final String uri, final String localName, final String qName, final Attributes attributes)
            throws SAXException {
        if (logger.isDebugEnabled()) {

     * Processes user, group, and role prefixes along with allow/deny prefixes.
     *
     * @param value the permission string to encode
     * @return the encoded permission string, or null if the input is blank or invalid
     */
    public String encode(final String value) {
        if (StringUtil.isBlank(value)) {
            return null;
        }

        String permission = value.trim();

                return OptionalEntity.of(permissionSet);
            }).orElseThrow(() -> new InvalidAccessTokenException("invalid_token", "Invalid token: " + token));
        }
        return OptionalEntity.empty();
    }

    }

    /**
     * Unblock an IP address.
     * @param ip the IP address to unblock
     */
    public void unblockIp(final String ip) {
        blockedIps.invalidate(ip);
        logger.info("IP unblocked: ip={}", ip);
    }

    /**
     * Get the number of currently blocked IPs.
     * Note: This may include expired entries not yet evicted.

        final PathInfo pi = convertToItem(id);
        if (StringUtil.isEmpty(pi.getName())) {
            throwValidationErrorApi(messages -> messages.addErrorsStorageAccessError(GLOBAL, "id is invalid"));
        }
        final String objectName = getObjectName(pi.getPath(), pi.getName());
        try {
            deleteObject(objectName);

        if (value != null) {
            try {
                boost = Float.parseFloat(value);
            } catch (final Exception e) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Invalid boost value, keeping current: value={}, error={}", value, e.getMessage());
                }
            }
        }
    }

    @Override
    public String getIndexingTarget(final String input) {

     * Test that generic exceptions are caught and null is returned
     */
    @Test
    public void test_evaluate_genericExceptionReturnsNull() {
        final Map<String, Object> params = new HashMap<>();
        // Invalid script that will cause an exception
        assertNull(groovyEngine.evaluate("return nonExistentVariable", params));
    }

    /**
     * Test that syntax errors return null
     */
    @Test

echo location of your Java installation. >&2
echo.
goto error

:OkJHome
if exist "%JAVA_HOME%\bin\java.exe" goto init

echo.
echo Error: JAVA_HOME is set to an invalid directory. >&2
echo JAVA_HOME = "%JAVA_HOME%" >&2
echo Please set the JAVA_HOME variable in your environment to match the >&2
echo location of your Java installation. >&2
echo.
goto error