该问题通常出现在使用Spring Security配置跨域访问时。该错误表明，在对alloweOriginPatterns属性进行设置时，存在不合法的参数。

解决此问题的方法是通过正则表达式对alloweOriginPatterns属性进行合法性验证。以下是一个代码示例：

@Configuration @EnableWebSecurity public class SecurityConfig extends WebSecurityConfigurerAdapter {

@Override
protected void configure(HttpSecurity http) throws Exception {
    http.cors().configurationSource(corsConfigurationSource());
}

@Bean
CorsConfigurationSource corsConfigurationSource() {
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    CorsConfiguration config = new CorsConfiguration();
    config.setAllowedOrigins(Arrays.asList("*"));
    config.setAllowedMethods(Arrays.asList("*"));
    config.setAllowedHeaders(Arrays.asList("*"));
    config.setAllowCredentials(true);
    source.registerCorsConfiguration("/**", config);

    // 正则表达式验证
    String allowedOriginPatterns = "https://.*\\.example\\.com";
    if (!Pattern.matches("^https?://.*$|^\\*$/", allowedOriginPatterns)) {
        throw new IllegalArgumentException("allowedOriginPatterns is illegal!");
    }

    config.setAllowedOriginPatterns(Arrays.asList(allowedOriginPatterns));
    return source;
}

}