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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 35631] New: - Missing putAll(Map map) in MultiHashMap since 3.1
Date Wed, 06 Jul 2005 14:44:57 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=35631

           Summary: Missing putAll(Map map) in MultiHashMap since 3.1
           Product: Commons
           Version: 3.1
          Platform: PC
        OS/Version: Windows 2000
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Collections
        AssignedTo: commons-dev@jakarta.apache.org
        ReportedBy: sven.macke@rewe.de


I just upgraded to version 3.1 and noticed some errors in my application. The 
cause is the method putAll(Map map) I used to call on a MultiHashMap to copy to 
content of one to another. That method is not defined in MultiHashMap any more, 
so HashMap.putAll(Map map) is used. The result of that is a MultiHashMap that 
contains ONE value per key and the value itself is a Collection.

Here is some test code I would expect to work, but it fails:

public class MultiHashMapTest extends TestCase
{
    public void testIt()
    {
        MultiMap original = new MultiHashMap();
        original.put("key", "object1");
        original.put("key", "object2");

        MultiMap copy = new MultiHashMap();
        copy.putAll(original);

        assertEquals(original.values().size(), copy.values().size());
        assertTrue(copy.containsValue("object1"));
        assertTrue(copy.containsValue("object2"));
    }
}

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