gistfile1.java

    private Object invokeMethod(Method m, Object base, Object[] params) {

        Class[] parameterTypes = m.getParameterTypes();
        Object[] parameters = null;
        if (parameterTypes.length > 0) {
            ExpressionFactory exprFactory = ExpressionFactory.newInstance();
            if (m.isVarArgs()) {
                // TODO
            } else {
                parameters = new Object[parameterTypes.length];
                for (int i = 0; i < parameterTypes.length; i++) {
                    parameters[i] = exprFactory.coerceToType(params[i],
                                                           parameterTypes[i]);
                }
            }
        }
        try {
            return m.invoke(base, parameters);
        } catch (IllegalAccessException iae) {
            throw new ELException(iae);
        } catch (InvocationTargetException ite) {
            throw new ELException(ite.getCause());
        }
    }