/**
 * This exception is thrown when a script engine error occurs.
 */
public class ScriptEngineException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /**
     * Constructor.
     * @param message The exception message.
     */
    public ScriptEngineException(final String message) {
        super(message);
    }

    /**
     * Constructor.

        // Test constructor with null message
        ScriptEngineException exception = new ScriptEngineException(null);

        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }

    public void test_constructor_withNullMessageAndCause() {
        // Test constructor with null message and null cause
        ScriptEngineException exception = new ScriptEngineException(null, null);

        // Try to execute with non-existent script type
        try {
            scriptExecutor.execute("nonexistent", "some script");
            fail("Expected ScriptEngineException");
        } catch (ScriptEngineException e) {
            assertTrue(e.getMessage().contains("nonexistent"));
        }
    }

    public void test_execute_withNullScriptType() {
        // Try to execute with null script type

    public void test_getScriptEngine_nullName() {
        try {
            scriptEngineFactory.getScriptEngine(null);
            fail("Should throw ScriptEngineException for null name");
        } catch (ScriptEngineException e) {
            assertEquals("script name is null.", e.getMessage());
        }
    }

    // Test getScriptEngine with non-existent name

        if (name == null) {
            throw new ScriptEngineException("script name is null.");
        }
        final ScriptEngine scriptEngine = scriptEngineMap.get(name.toLowerCase(Locale.ROOT));
        if (scriptEngine != null) {
            return scriptEngine;
        }
        throw new ScriptEngineException(name + " is not found.");
    }