Spring Native构建中含HashMap的配置属性类绑定失败排查

我尝试使用GraalVM与Spring Boot 3.0构建原生可执行文件，但当配置属性类中包含HashMap时，应用启动失败。

配置属性类代码 #

@Validated
@Data
@Component
@ConfigurationProperties(prefix = "test-props")
@FieldDefaults(level = AccessLevel.PRIVATE)
public class TestProperties {

    @NotEmpty
    HashMap<String, PermissionsConfig> datagroups;

    @Data
    @Builder
    @AllArgsConstructor
    @NoArgsConstructor
    @FieldDefaults(level = AccessLevel.PRIVATE)
    public static class PermissionsConfig {
      // 字段
    }
}

配置文件内容 #

test-props:
  datagroups:
    data:
      read:
        code: READ_DATA
        urlPattern:
          - /some/pattern/

测试运行器代码 #

@Slf4j
@Component
@RequiredArgsConstructor
@FieldDefaults(makeFinal = true, level = AccessLevel.PRIVATE)
public class TestRunner implements ApplicationRunner {

    TestProperties testProperties;

    @Override
    public void run(ApplicationArguments args) throws Exception {

        if (testProperties.getDatagroups() == null) {
            throw new RuntimeException("property not binded");
        }

        log.info("property {}", testProperties);

    }
}

报错信息 #

---

APPLICATION FAILED TO START

---

Description:

Binding to target org.springframework.boot.context.properties.bind.BindException: Failed to bind properties under 'test-props' to test.properties.TestProperties failed:
Property: test-props.datagroups
Value: "null"

以普通Java应用启动时一切正常，但构建为原生可执行文件后启动报错。我已尝试为属性类添加额外的提示（hints），此前连验证都无法正常工作。我预期该功能在原生镜像中也能正常运行，请问我忽略了什么？

复现步骤 #

• 获取仓库代码
• 执行命令：./gradlew nativeCompile
• 运行可执行文件：./build/native/nativeCompile/app

内容的提问来源于stack exchange，提问作者Jonathan H