loyi created KAFKA-12723:
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Summary: Potential NPE in SnapshottableHashTable.java
Key: KAFKA-12723
URL: https://issues.apache.org/jira/browse/KAFKA-12723
Project: Kafka
Issue Type: Bug
Affects Versions: 2.8.0
Reporter: loyi
The method mergeFrom of {color:#de350b}HashTier{color} maybe has potential NPE
, the attribute deltaTable in {color:#de350b}other{color} variable may be
null. Maybe we should add a check.
The following is the method:
public void mergeFrom(long epoch, Delta source) {
HashTier<T> other = (HashTier<T>) source;
List<T> list = new ArrayList<>();
Object[] otherElements = other.deltaTable.baseElements(); // Add a null
check
......
}
After fix:
public void mergeFrom(long epoch, Delta source) {
HashTier<T> other = (HashTier<T>) source;
List<T> list = new ArrayList<>();
BaseHashTable<T> otherDeltaTable = other.deltaTable;
if (otherDeltaTable != null) {
......
}
}
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