Ted Yu created HADOOP-15876:
-------------------------------
Summary: Use keySet().removeAll() to remove multiple keys from Map
in AzureBlobFileSystemStore
Key: HADOOP-15876
URL: https://issues.apache.org/jira/browse/HADOOP-15876
Project: Hadoop Common
Issue Type: Improvement
Reporter: Ted Yu
Looking at
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/AzureBlobFileSystemStore.java
, {{removeDefaultAcl}} in particular:
{code}
for (Map.Entry<String, String> defaultAclEntry :
defaultAclEntries.entrySet()) {
aclEntries.remove(defaultAclEntry.getKey());
}
{code}
The above operation can be written this way:
{code}
aclEntries.keySet().removeAll(defaultAclEntries.keySet());
{code}
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