Nikhil,
Do you have a test case to prove this behaviour? What would like to see
as a solution - an update to the JavaDoc to explicitly indicate that
inserting a key with null value(s) into a MultiMap returns false, or a
code change?
Steve.
---
Stephen Smith, MEng (Wales).
http://www.stephen-smith.co.uk/
Nikhil G. Daddikar (JIRA) wrote:
containsKey on MultiHashMap seems incorrect
-------------------------------------------
Key: COLLECTIONS-250
URL: https://issues.apache.org/jira/browse/COLLECTIONS-250
Project: Commons Collections
Issue Type: Bug
Components: Map
Affects Versions: 3.2, 3.1
Reporter: Nikhil G. Daddikar
Priority: Critical
MultiHashMap m = new MultiHashMap();
m.putAll("key", Collections.EMPTY_LIST);
System.out.println(m.containsKey("key"))
It says false, when it should have printed true.
The problem is that the code in MultiHashMap and even MultiValueMap has in
putAll():
if (values == null || values.size() == 0)
{
return false;
}
This means that they key is never being entered into the Map. This is causing a
huge problem because the behaviour has changed.
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