[COLLECTIONS-559] Objects which are not of type V can be placed in a MultiValueMap<K,V>.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 4.0
• Component/s: KeyValue

Environment

java version "1.8.0_25"
Java(TM) SE Runtime Environment (build 1.8.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.25-b02, mixed mode)
OS X 10.10

• Assignee: Unassigned
• Reporter: Pétur Ingi Egilsson
• Created: 01/Apr/15 19:26
• Updated: 01/Apr/15 19:41
• Resolved: 01/Apr/15 19:41

Description

I declared a MultiValueMap as this:

MultiValueMap<Integer, Path> duplicates = new MultiValueMap<Integer, Path>();

Elsewhere in code I doing (by accident) something in this direction

duplicates.put(number, new LinkedList<Path>());

Exceptions were being thrown when values returned from the list could not be assigned to variables of type Path.

org.apache.commons.collections4.map.MultiValueMap.java

public Object put(final K key, final Object value) {
...

I propose that Object in the above decleration is changed to T.