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HBASE-25776 Use Class.asSubclass to fix the warning in StochasticLoadBalancer.loadCustomCostFunctions (#3163) 

Signed-off-by: Duo Zhang <zhangduo@apache.org>
Signed-off-by: Viraj Jasani <vjasani@apache.org>
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xiaoyu 2021-04-16 02:04:06 +08:00 committed by Viraj Jasani
parent 69e93c8137
commit 22fd7d7f10
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hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.java
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@ -247,7 +247,7 @@ public class StochasticLoadBalancer extends BaseLoadBalancer {
costFunctions.addAll(Arrays.stream(functionsNames).map(c -> {
Class<? extends CostFunction> klass = null;
try {
klass = (Class<? extends CostFunction>) Class.forName(c);
klass = Class.forName(c).asSubclass(CostFunction.class);
} catch (ClassNotFoundException e) {
LOG.warn("Cannot load class " + c + "': " + e.getMessage());
}