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https://issues.apache.org/jira/browse/THRIFT-1203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13046940#comment-13046940
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Bryan Duxbury commented on THRIFT-1203:
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I think the ballpark is 3x longer for TreeMap vs HashMap.
However, even if they were the same performance, I'd be against the change. We
would end up trying to guarantee that the ordering itself is the same between
languages, which is, again, an exercise in helping a test pass. Not worth it.
> Java server returns JSON map items in the wrong order
> -----------------------------------------------------
>
> Key: THRIFT-1203
> URL: https://issues.apache.org/jira/browse/THRIFT-1203
> Project: Thrift
> Issue Type: Bug
> Components: Java - Compiler, Java - Library
> Affects Versions: 0.6, 0.7
> Reporter: Henrique Mendonca
> Priority: Minor
> Labels: java, test, test-server
>
> This is a old bug I have forgotten to register.
> lib/js/test uses a Java server to run its unit tests, and by doing so I could
> see that there is a small problem on the Java JSON map decoder.
> The unit test "testMap" should echo a map<int,int> back to the client without
> changing it, but it's messing up with the items order, e.g. {7=77, 8=88,
> 9=99} returns {8=88, 9=99, 7=77}
> To run the server:
> thrift-trunk/lib/java$ ant compile-test
> thrift-trunk/lib/js/test$ ant testserver
> and go to http://localhost:8088/test/test.html
> Java test server console output:
> [java] Incoming content:
> [1,"testMap",1,0,{"1":{"map":["i32","i32",3,{"7":77,"8":88,"9":99}]}}]
> [java] testMap({{8=88, 9=99, 7=77}})
> [java] Outgoing content:
> [1,"testMap",2,0,{"0":{"map":["i32","i32",3,{"8":88,"9":99,"7":77}]}}]
> It's minor but it would be nice if any Java developer could have a look on it.
> Thanks a lot.
> ps.: the same works with a cpp server
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