Method findMethod

java/jakarta/el/Util.java:92–121

(ELContext context, Class<?> clazz, Object base, String methodName, Class<?>[] paramTypes,
            Object[] paramValues)

     * This method duplicates code in org.apache.el.util.ReflectionUtil. When making changes keep the code in sync.
     */
    static Method findMethod(ELContext context, Class<?> clazz, Object base, String methodName, Class<?>[] paramTypes,
            Object[] paramValues) {

        if (clazz == null || methodName == null) {
            throw new MethodNotFoundException(
                    message(null, "util.method.notfound", clazz, methodName, paramString(paramTypes)));
        }

        if (paramTypes == null) {
            paramTypes = getTypesFromValues(paramValues);
        }

        // Fast path: when no arguments exist, there can only be one matching method and no need for coercion.
        if (paramTypes.length == 0) {
            try {
                Method method = clazz.getMethod(methodName, paramTypes);
                return getMethod(clazz, base, method);
            } catch (NoSuchMethodException | SecurityException ignore) {
                // Fall through to broader, slower logic
            }
        }

        Method[] methods = clazz.getMethods();

        List<Wrapper<Method>> wrappers = Wrapper.wrap(methods, methodName);

        Wrapper<Method> result = findWrapper(context, clazz, wrappers, methodName, paramTypes, paramValues);

        return getMethod(clazz, base, result.unWrap());
    }

    /*
     * This method duplicates code in org.apache.el.util.ReflectionUtil. When making changes keep the code in sync.