AMashenkov commented on a change in pull request #9246:
URL: https://github.com/apache/ignite/pull/9246#discussion_r667934747
##########
File path: modules/core/src/main/java/org/jsr166/ConcurrentLinkedHashMap.java
##########
@@ -1536,10 +1553,60 @@ public V replacex(K key, V oldVal, V newVal) {
}
/**
- * Removes all of the mappings from this map.
+ * Removes all of the mappings from this map. Performs recursive table
locking.
*/
@Override public void clear() {
- throw new UnsupportedOperationException();
+ int len = segments.length;
+
+ clear(0, len);
+ }
+
+ /**
+ * Recursively locks each segment in consistent order. When all segments
are locked method clears them
+ * all and releases locks in reverse order.
+ * @param segIndex segIndex of a segment to lock
+ * @param len length of segments array
+ */
+ private void clear(int segIndex, int len) {
+
Review comment:
```suggestion
private void clear(int segIndex, int len) {
```
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