[HADOOP-17726] Replace Sets#newHashSet() and newTreeSet() with constructors directly

• Type: Improvement
• Status: In Progress
• Priority: Trivial
• Resolution: Unresolved
• Affects Version/s: 3.3.5
• Labels: beginner beginner-friendly newbie
• Assignee: Samrat Deb
• Reporter: Viraj Jasani
• Created: 21/May/21 12:57
• Updated: 03/Jun/22 21:47

Description

 

As part of removing guava dependencies  HADOOP-17115, HADOOP-17721, HADOOP-17722 and HADOOP-17720 are fixed,

Currently the code call util function to create HashSet and TreeSet in the repo . These function calls dont have much importance as it is calling internally new HashSet<> / new TreeSet<> from java.utils 

This task is to clean up all the function calls to create sets which is redundant 

Issue Links

• is related to: HADOOP-17115 Replace Guava Sets usage by Hadoop's own Sets in hadoop-common and hadoop-tools
• is related to: HADOOP-17720 Replace Guava Sets usage by Hadoop's own Sets in hadoop-hdfs-project
• is related to: HADOOP-17721 Replace Guava Sets usage by Hadoop's own Sets in hadoop-yarn-project
• is related to: HADOOP-17722 Replace Guava Sets usage by Hadoop's own Sets in hadoop-mapreduce-project

Sub-Tasks

• replace with HashSet/TreeSet constructor directly in hadoop-hdfs-project: Resolved
• Replace with HashSet/TreeSet constructor in Hadoop-common-project: Resolved
• replace with HashSet/TreeSet constructor directly in hadoop-yarn-project: Open
• Replace Sets#newHashSet() and newTreeSet() with constructors directly in hadoop-client-modules: Resolved
• Replace Sets#newHashSet() and newTreeSet() with constructors directly in hadoop-cloud-storage-project: Resolved
• Replace Sets#newHashSet() and newTreeSet() with constructors directly hadoop-mapreduce: Open
• Replace Sets#newHashSet() and newTreeSet() with constructors directly hadoop-tool: Open