[HBASE-25776] Use Class.asSubclass to fix the warning in StochasticLoadBalancer.loadCustomCostFunctions

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1, 2.5.0, 2.4.3, 2.3.6
• Component/s: Balancer
• Labels: beginner trivial
• Hadoop Flags: Reviewed
• Assignee: Yu Xiao
• Reporter: Duo Zhang
• Created: 15/Apr/21 03:39
• Updated: 17/Apr/21 02:32
• Resolved: 15/Apr/21 18:13

Description

 klass = (Class<? extends CostFunction>) Class.forName(c);

This will generated a warning of unchecked casting, could simply use Class.forName(c).asSubclass(CostFunction.class).

Issue Links

• links to: GitHub Pull Request #3163