Local cache not working as expected when executing get, put and get operations on the same key

This is a extension of the issue #3966 because we could not reproduce the problem with the provided test. So, we are trying to provide a new test trying to reproduce the actual issue that we observed on our application.

Expected behavior

We execute these operations on a local cache that points to a redis map already initialized:

1. get initial value
2. put new value
3. get new value

We expect to receive the new value on the third operation.

Actual behavior

Sometimes we get the initial value on the third operation.

Steps to reproduce or test case

A test to reproduce the issue:

@Test
public void testLocalCacheGetAndPut() {
    int numberOfKeys = 5_000;

    initializeRedis(numberOfKeys);

    RMap<String, String> localCachedMap = redisson.getLocalCachedMap("test", LocalCachedMapOptions.defaults());
    for (int i = 0; i < numberOfKeys; i++) {
        localCachedMap.get("key" + i);
        localCachedMap.put("key" + i, "value-" + i);
        String cachedValue = localCachedMap.get("key" + i);
        assertThat(cachedValue).isEqualTo("value-" + i);
    }
}

private void initializeRedis(int numberOfKeys) {
    RMap<String, String> map = redisson.getMap("test");
    for (int i = 0; i < numberOfKeys; i++) {
        map.put("key" + i, "initial-value");
    }
}

It fails on different iterations when you execute the test more than once:

org.opentest4j.AssertionFailedError: 
expected: "value-377"
 but was: "initial-value"

(...)

org.opentest4j.AssertionFailedError: 
expected: "value-1109"
 but was: "initial-value"

(...)

org.opentest4j.AssertionFailedError: 
expected: "value-0"
 but was: "initial-value"

Redis version

Redis 5.0.7

Redisson version

3.16.5-SNAPSHOT

Redisson configuration

Default configuration

[mrniko]

Fixed! Thanks for report

[mrniko]

@ipalbeniz I’ll release it during next week.