[jira] Closed: (NUTCH-263) MapWritable.equals() doesn't work properly

["Andrzej Bialecki (JIRA)" <ji...@apache.org>]

     [ http://issues.apache.org/jira/browse/NUTCH-263?page=all ]
     
Andrzej Bialecki  closed NUTCH-263:
-----------------------------------

    Resolution: Fixed

Patch applied in rev. 405179. If further improvements are needed please re-open this issue.

> MapWritable.equals() doesn't work properly
> ------------------------------------------
>
>          Key: NUTCH-263
>          URL: http://issues.apache.org/jira/browse/NUTCH-263
>      Project: Nutch
>         Type: Bug

>     Versions: 0.8-dev
>     Reporter: Andrzej Bialecki 
>  Attachments: patch1.txt
>
> MapWritable.equals() is sensitive to the order in which map entries have been created. E.g. this fails but it should succeed:
>     MapWritable map1 = new MapWritable();
>     MapWritable map2 = new MapWritable();
>     map1.put(new UTF8("key1"), new UTF8("val1"));
>     map1.put(new UTF8("key2"), new UTF8("val2"));
>     map2.put(new UTF8("key2"), new UTF8("val2"));
>     map2.put(new UTF8("key1"), new UTF8("val1"));
>     assertTrue(map1.equals(map2));
> Users expect that this should not be the case, i.e. this class should follow the same rules as Map.equals() ("Returns true if the given object is also a map and the two Maps represent the same mappings").

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