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HBASE-22739 check bound where removeRegion #411

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HBASE-22739 check bound where removeRegion #411

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3 changes: 3 additions & 0 deletions hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -870,6 +870,9 @@ int[] removeRegion(int[] regions, int regionIndex) {
if (regions[i] == regionIndex) {
break;
}
if (i == regions.length - 1) {
return Arrays.copyOf(regions, regions.length);
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Here i think we can just return regions. No need to copy the entire array, unless you have a strong reason.

}
newRegions[i] = regions[i];
}
System.arraycopy(regions, i+1, newRegions, i, newRegions.length - i);
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