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jiatao.tao commented on KYLIN-3144: ----------------------------------- Thanks. > Adopt Collections.emptyList() for empty list values > --------------------------------------------------- > > Key: KYLIN-3144 > URL: https://issues.apache.org/jira/browse/KYLIN-3144 > Project: Kylin > Issue Type: Improvement > Reporter: Ted Yu > Assignee: jiatao.tao > Priority: Minor > > Use Collection.emptyList() for returning an empty list instead of returning > new ArrayList<>(). > The default constructor creates a buffer of size 10 for ArrayList . > Therefore, returning this static value saves some memory and lessens GC > pressure. > One candidate for replacement is in HybridService#listHybrids() -- This message was sent by Atlassian JIRA (v6.4.14#64029)