virajjasani commented on a change in pull request #673: HBASE-23093 : Avoid
Optional Anti-Pattern where possible
URL: https://github.com/apache/hbase/pull/673#discussion_r333325144
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File path:
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerWrapperImpl.java
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@@ -275,7 +276,7 @@ public int getFlushQueueSize() {
@Override
public long getBlockCacheCount() {
- return this.blockCache.map(BlockCache::getBlockCount).orElse(0L);
+ return this.blockCache != null ? this.blockCache.getBlockCount() : 0L;
Review comment:
@Apache9 @petersomogyi I was just checking online and came across this:
https://stackoverflow.com/questions/31922866/why-should-java-8s-optional-not-be-used-in-arguments
Looks like we have tried to cover all that is mentioned in 1st ans
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