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-rw-r--r--src/main/java/at/hannibal2/skyhanni/features/fishing/ChumBucketHider.kt10
-rw-r--r--src/main/java/at/hannibal2/skyhanni/utils/TimeLimitedCache.kt13
-rw-r--r--src/main/java/at/hannibal2/skyhanni/utils/TimeLimitedSet.kt2
3 files changed, 15 insertions, 10 deletions
diff --git a/src/main/java/at/hannibal2/skyhanni/features/fishing/ChumBucketHider.kt b/src/main/java/at/hannibal2/skyhanni/features/fishing/ChumBucketHider.kt
index 0bb98f8e4..5f64aba8c 100644
--- a/src/main/java/at/hannibal2/skyhanni/features/fishing/ChumBucketHider.kt
+++ b/src/main/java/at/hannibal2/skyhanni/features/fishing/ChumBucketHider.kt
@@ -66,15 +66,7 @@ object ChumBucketHider {
// Chum Bucket
if (config.hideBucket.get() && entity.inventory.any { it != null && (it.name == "§fEmpty Chum Bucket" || it.name == "§aEmpty Chumcap Bucket") }) {
val entityLocation = entity.getLorenzVec()
- val toSet = try {
- titleEntity.toSet()
- } catch (e: NoSuchElementException) {
- // Caught an NoSuchElementException in ChumBucketHider at CheckRenderEntityEvent: null
- // We know this happens, but we cant fix it, apparently.
- // TODO fix it anyway
- return
- }
- for (title in toSet) {
+ for (title in titleEntity.toSet()) {
if (entityLocation.equalsIgnoreY(title.getLorenzVec())) {
hiddenEntities.add(entity)
event.cancel()
diff --git a/src/main/java/at/hannibal2/skyhanni/utils/TimeLimitedCache.kt b/src/main/java/at/hannibal2/skyhanni/utils/TimeLimitedCache.kt
index 4c96c9b3c..a88db58e1 100644
--- a/src/main/java/at/hannibal2/skyhanni/utils/TimeLimitedCache.kt
+++ b/src/main/java/at/hannibal2/skyhanni/utils/TimeLimitedCache.kt
@@ -48,11 +48,24 @@ class TimeLimitedCache<K : Any, V : Any>(
* Modifications to the returned map are not supported and may lead to unexpected behavior.
* This method is intended for read-only operations such as iteration or retrieval of values.
*
+ * This returning map and any view into that map via [Map.keys], [Map.values] or [Map.entries],
+ * may return [Collection.size] values larger than the elements actually present during iteration.
+ * This can lead to problems with kotlins [Iterable.toSet], [Iterable.toList] (etc.) small collection
+ * optimizations. Those methods (and similar ones) have optimizations for single element collections.
+ * Since the [Collection.size] is checked first those methods will then not make any additional
+ * checks when accessing the elements of the collection. This can lead to rare [NoSuchElementException].
+ * Therefore, the direct constructors of [HashSet], [ArrayList] and similar are to be preferred,
+ * since they make no such optimizations.
+ *
* @return A read-only view of the cache's underlying map.
*/
private fun getMap(): ConcurrentMap<K, V> {
val asMap: ConcurrentMap<K, V>
+ // TODO: the returned map view here is live and is updated as the underlying cache is.
+ // the lock here is relatively pointless. i don't know why it was put here, but i
+ // can't imagine a good reason, since every access to the returned map would also
+ // need to be guarded by the same lock to be effective.
cacheLock.readLock().lock()
try {
asMap = cache.asMap()
diff --git a/src/main/java/at/hannibal2/skyhanni/utils/TimeLimitedSet.kt b/src/main/java/at/hannibal2/skyhanni/utils/TimeLimitedSet.kt
index 100bbbd10..710e7ee46 100644
--- a/src/main/java/at/hannibal2/skyhanni/utils/TimeLimitedSet.kt
+++ b/src/main/java/at/hannibal2/skyhanni/utils/TimeLimitedSet.kt
@@ -27,7 +27,7 @@ class TimeLimitedSet<T : Any>(
fun clear() = cache.clear()
- fun toSet(): Set<T> = cache.keys().toSet()
+ fun toSet(): Set<T> = HashSet(cache.keys())
override fun iterator(): Iterator<T> = toSet().iterator()
}