java.util.List to java.util.Optional

No. of Instances - 151

No. of Commits - 28

No. of Projects - {'sonarqube', 'javaparser', 'keywhiz', 'graylog2-server', 'junit5', 'flink', 'presto', 'james-project', 'aima-java'}

Hierarchy/Composition: -

Primitive Info: -

NameSpace: Jdk -> Jdk

Mapping: