assertEquals(engine1, scriptEngineFactory.getScriptEngine("engine1"));
        assertEquals(engine2, scriptEngineFactory.getScriptEngine("engine2"));
        assertEquals(customEngine, scriptEngineFactory.getScriptEngine("custom"));

        // Verify class name access - last added engine of same class wins
        assertEquals(engine2, scriptEngineFactory.getScriptEngine("testscriptengine"));

        final Map<String, Object> params = new HashMap<>();
        params.put("executor", this);

        return ComponentUtil.getScriptEngineFactory().getScriptEngine(scriptType).evaluate(script, params);
    }

    }

    /**
     * Gets a script engine.
     * @param name The name of the script engine.
     * @return The script engine.
     */
    public ScriptEngine getScriptEngine(final String name) {
        if (name == null) {
            throw new ScriptEngineException("Script engine name parameter is null. A valid script engine name must be provided.");
        }

            return StringUtil.EMPTY;
        }

        if (paramMap.containsKey(template)) {
            return paramMap.get(template);
        }

        return ComponentUtil.getScriptEngineFactory().getScriptEngine(scriptType).evaluate(template, paramMap);
    }

    /**
     * Get the read interval.
     * @param paramMap The parameters.
     * @return The read interval.
     */

            paramMap.put("url", u);
            paramMap.put("matcher", m);
            final Object value =
                    ComponentUtil.getScriptEngineFactory().getScriptEngine(Constants.DEFAULT_SCRIPT).evaluate(template, paramMap);
            if (value == null) {
                return u;
            }
            return value.toString();
        };
    }

    /**

        if (StringUtil.isEmpty(template)) {
            return StringUtil.EMPTY;
        }

        return ComponentUtil.getScriptEngineFactory().getScriptEngine(scriptType).evaluate(template, paramMap);
    }

    /**
     * Gets the maximum allowed length for site strings from configuration.
     *
     * @return the maximum site length as configured
     */