修改部分 jsr305 注解的使用。

plusone-system/plusone-system-domain/src/main/java/xyz/zhouxy/plusone/system/domain/model/account/AccountStatus.java

@@ -31,7 +31,6 @@ public final class AccountStatus extends Enumeration<AccountStatus> implements I
         return VALUE_SET.get(id);
     }
 
-    @Nonnull
     public static Collection<AccountStatus> constants() {
         return VALUE_SET.getValues();
     }

plusone-system/plusone-system-domain/src/main/java/xyz/zhouxy/plusone/system/domain/model/account/Sex.java

@@ -26,12 +26,10 @@ public final class Sex extends Enumeration<Sex> implements IValueObject {
 
     private static final ValueSet<Sex> VALUE_SET = new ValueSet<>(UNSET, MALE, FEMALE);
 
-    @Nonnull
     public static Sex of(int value) {
         return VALUE_SET.get(value);
     }
 
-    @Nonnull
     public static Collection<Sex> constants() {
         return VALUE_SET.getValues();
     }