[jira] [Resolved] (JENA-1784) CacheSimple doesn't check keys for equality

["Andy Seaborne (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/JENA-1784?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Seaborne resolved JENA-1784.
---------------------------------
    Fix Version/s: Jena 3.14.0
       Resolution: Fixed

> CacheSimple doesn't check keys for equality 
> --------------------------------------------
>
>                 Key: JENA-1784
>                 URL: https://issues.apache.org/jira/browse/JENA-1784
>             Project: Apache Jena
>          Issue Type: Bug
>            Reporter: Pavel Mikhailovskii
>            Assignee: Andy Seaborne
>            Priority: Major
>             Fix For: Jena 3.14.0
>
>          Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> CacheSimple identifies keys solely by their hash codes, so that two keys with same hash code are treated as equal, and values stored with one key can be retrieved with another.
> A test that currently fails:
> {code:java}
> @Test
> public void testSameHash() {
>   Cache<String, Integer> cache = new CacheSimple<>(10);
>   assertEquals("Aa".hashCode(), "BB".hashCode());
>   cache.put("Aa", 1);
>   assertFalse("Keys with same hash code should not be considered equal", cache.containsKey("BB"));
> }
> {code}



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