ctubbsii commented on a change in pull request #1779:
URL: https://github.com/apache/accumulo/pull/1779#discussion_r524440237
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File path: core/src/test/java/org/apache/accumulo/core/data/NamespaceIdTest.java
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@@ -79,12 +79,13 @@ public void testCacheIncreasesAndDecreasesAfterGC() {
assertEquals(namespaceString, nsId.canonical());
// create a bunch more and throw them away
- for (int i = 0; i < 999; i++) {
- NamespaceId.of(new String("namespace" + i));
+ long preGCSize = 0;
+ int i = 0;
+ while ((preGCSize = NamespaceId.cache.asMap().entrySet().stream().count())
< 100) {
Review comment:
We can't use `size()` (either on the `Map` or its `entrySet()`), because
that is only an approximation when working with Guava Cache objects. We need
the actual count, which we can get by iterating over the entry set. See
https://guava.dev/releases/21.0/api/docs/com/google/common/cache/Cache.html#size--
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