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ListFlag#merge should not allow duplicates (Fixes #3157) (#3265)

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Pierre Maurice Schwang 2021-10-01 21:52:30 +02:00 committed by NotMyFault
parent 20c2f36f6c
commit 541255fe7e
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1 changed files with 12 additions and 2 deletions
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14
Core/src/main/java/com/plotsquared/core/plot/flag/types/ListFlag.java
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@ -43,8 +43,18 @@ public abstract class ListFlag<V, F extends PlotFlag<List<V>, F>> extends PlotFl
@Override @Override
public F merge(@NonNull List<V> newValue) { public F merge(@NonNull List<V> newValue) {
final List<V> mergedList = new ArrayList<>(); final List<V> mergedList = new ArrayList<>();
mergedList.addAll(getValue()); // If a server already used PS before this fix, we remove all present duplicates on an eventual merge
mergedList.addAll(newValue); for (final V v : getValue()) {
if (!mergedList.contains(v)) {
mergedList.add(v);
}
}
// Only add new values if not already present from #getValue()
for (final V v : newValue) {
if (!mergedList.contains(v)) {
mergedList.add(v);
}
}
return this.flagOf(mergedList); return this.flagOf(mergedList);
} }