afs opened a new issue, #2802:
URL: https://github.com/apache/jena/issues/2802
### Change
CacheSimple invalidates the hash slot when the key hash matches even if it
is a different key.
```
Object key1 = new Object() { @Override public int hashCode() {
return 0 ; } };
Object key2 = new Object() { @Override public int hashCode() {
return 0 ; } };
Cache<Object, String> cache = CacheFactory.createSimpleCache(16);
cache.put(key1, "object1");
cache.put(key2, null);
String s = cache.getIfPresent(key1);
System.out.println(s);
// s is null, should be "object1"
```
This is functionally safe - it just looses the cache entry unnecessarily.
### Are you interested in contributing a pull request for this task?
Yes
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