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CASSANDRA-19605: Fix NPE in RangeDeps.forEach #86

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CASSANDRA-19605: Fix NPE in RangeDeps.forEach #86

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7 changes: 6 additions & 1 deletion accord-core/src/main/java/accord/primitives/RangeDeps.java
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Original file line number Diff line number Diff line change
Expand Up @@ -149,6 +149,11 @@ private RangeDeps(Range[] ranges, TxnId[] txnIds, int[] rangesToTxnIds, int[] tx
this.txnIdsToRanges = txnIdsToRanges;
}

public void forEach(RoutableKey key, Consumer<TxnId> forEach)
{
forEach(key, Consumer::accept, forEach, 0, null);
}

@Inline
public <P1, P2, P3, P4> int forEach(RoutableKey key, IndexedQuadConsumer<P1, P2, P3, P4> forEachScanOrCheckpoint, IndexedRangeQuadConsumer<P1, P2, P3, P4> forEachRange, P1 p1, P2 p2, P3 p3, P4 p4, int minIndex)
{
Expand Down Expand Up @@ -270,7 +275,7 @@ public <P1> void forEachUniqueTxnId(RoutableKey key, P1 p1, BiConsumer<P1, TxnId
*/
public void forEach(Range range, Consumer<TxnId> forEach)
{
forEach(range, forEach, 0, null);
forEach(range, Consumer::accept, forEach, 0, null);
}

/**
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13 changes: 11 additions & 2 deletions accord-core/src/test/java/accord/primitives/RangeDepsTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,7 @@
import java.util.*;

import static accord.primitives.Txn.Kind.Write;
import static org.assertj.core.api.Assertions.assertThat;

public class RangeDepsTest
{
Expand Down Expand Up @@ -96,8 +97,12 @@ Set<TxnId> canonicalOverlaps(Range range)

Set<TxnId> testOverlaps(Range range)
{
List<TxnId> uniq = new ArrayList<>();
test.forEachUniqueTxnId(range, uniq::add);
Set<TxnId> set = new TreeSet<>();
test.forEachUniqueTxnId(range, set::add);
test.forEach(range, set::add);
assertThat(uniq).doesNotHaveDuplicates()
.containsExactlyInAnyOrderElementsOf(set);
return set;
}

Expand All @@ -114,8 +119,12 @@ Set<TxnId> canonicalOverlaps(RoutableKey key)

Set<TxnId> testOverlaps(RoutableKey key)
{
List<TxnId> uniq = new ArrayList<>();
test.forEachUniqueTxnId(key, uniq::add);
Set<TxnId> set = new TreeSet<>();
test.forEachUniqueTxnId(key, set::add);
test.forEach(key, set::add);
assertThat(uniq).doesNotHaveDuplicates()
.containsExactlyInAnyOrderElementsOf(set);
return set;
}

Expand Down