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Diffstat (limited to 'java/util/concurrent/CopyOnWriteArrayList.java')
| -rw-r--r-- | java/util/concurrent/CopyOnWriteArrayList.java | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/java/util/concurrent/CopyOnWriteArrayList.java b/java/util/concurrent/CopyOnWriteArrayList.java index 0e76625c6..1ac5b956d 100644 --- a/java/util/concurrent/CopyOnWriteArrayList.java +++ b/java/util/concurrent/CopyOnWriteArrayList.java @@ -452,7 +452,12 @@ public class CopyOnWriteArrayList<E> public synchronized boolean remove(Object element) { E[] snapshot = this.data; - E[] newData = (E[]) new Object[snapshot.length - 1]; + int len = snapshot.length; + + if (len == 0) + return false; + + E[] newData = (E[]) new Object[len - 1]; // search the element to remove while filling the backup array // this way we can run this method in O(n) |