Ted Yu created KYLIN-3144:
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Summary: 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
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()
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