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https://issues.apache.org/jira/browse/FREEMARKER-67?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pu Zhongqiang resolved FREEMARKER-67.
-------------------------------------
       Resolution: Resolved
    Fix Version/s: 2.3.23
                   2.3.24-incubating
                   2.3.25-incubating
                   2.3.26-incubating

Since 2.3.22, explicitly set incompatible_improvements to at least 2.3.22, then 
the iteration order of all kind of Map-s will be exactly the same as in Java.

So this problem is resolved.

> Doesn't support org.bson.Document's correct order of keys.
> ----------------------------------------------------------
>
>                 Key: FREEMARKER-67
>                 URL: https://issues.apache.org/jira/browse/FREEMARKER-67
>             Project: Apache Freemarker
>          Issue Type: Bug
>          Components: engine
>    Affects Versions: 2.3.23, 2.3.24-incubating, 2.3.25-incubating, 
> 2.3.26-incubating
>         Environment: Windows7, jdk1.8.0_131 64bit, Tomcat 8.0.45, SpringMVC 
> 4.3.10.RELEASE, mongo-java-driver 3.4.2
>            Reporter: Pu Zhongqiang
>            Priority: Minor
>              Labels: features
>             Fix For: 2.3.26-incubating, 2.3.25-incubating, 2.3.24-incubating, 
> 2.3.23
>
>
> In mongodb's Java Driver 3.x, org.bson.Document is a representation of a bson 
> document as a Map. Although org.bson.Document is not a subclass of 
> LinkedHashMap, it really DOES maintain a meaningful order for its keys.
> It works good if I use LinkedHashMap to load data.
> {code:java}
> LinkedHashMap<String,Object> accepted_sorts = new LinkedHashMap<>();
> accepted_sorts.put("-favorite_time", "Hello");
> accepted_sorts.put("-publish_time", "Welcome");
> model.put("accepted_sorts", accepted_sorts);
> {code}
> {code:html}
> <#list accepted_sorts?keys as value>
>       ${value?string}
> </#list>
> <br>
> <#list accepted_sorts as key,value>
>       ${key?string},${value?string}
> </#list>
> {code}
> it rendered as: 
> {code:html}
> -favorite_time -publish_time 
> -favorite_time,Hello -publish_time,Welcome 
> {code}
> But Freemarker doesn't support  org.bson.Document's correct key order. You 
> can see my test below:
> {code:java}
> Document accepted_sorts = new Document();
> accepted_sorts.put("-favorite_time", "Hello");
> accepted_sorts.put("-publish_time", "Welcome");
> model.put("accepted_sorts", accepted_sorts);
> {code}
> {code:html}
> <#list accepted_sorts?keys as value>
>       ${value?string}
> </#list>
> <br>
> <#list accepted_sorts as key,value>
>       ${key?string},${value?string}
> </#list>
> {code}
> it rendered as wrong order: 
> {code:html}
> -publish_time -favorite_time 
> -publish_time,Welcome -favorite_time,Hello 
> {code}
> So, in the end, I wish freemarker can add support for org.bson.Document's 
> correct order of keys.



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