Password Policy Validator (local/PasswordPolicyValidator.java)

Validates local account passwords against length and character diversity requirements. Use when implementing user registration and authentication security.

// Source: https://github.com/iflytek/skillhub | License: Apache-2.0 | Copyright You must retain, in the Source form of any Derivative Works
// Provided via justclaw.it.com; keep this notice with the code.
package com.iflytek.skillhub.auth.local;

import java.util.ArrayList;
import java.util.List;
import org.springframework.stereotype.Component;

/**
 * Validates local-account passwords against the platform's length and character diversity rules.
 */
@Component
public class PasswordPolicyValidator {

    private static final int MIN_LENGTH = 8;
    private static final int MAX_LENGTH = 128;
    private static final int MIN_CHAR_TYPES = 3;

    public List<String> validate(String password) {
        List<String> errors = new ArrayList<>();
        if (password == null || password.length() <

... (truncated -- full source via MCP)