Steps to Reproduce

Run sample "bugTreeDetachTime.zip"
(put zul + classes in project and run)

Click on "show data"
wait for page to load
Click on "clear tree"

Current Result

detaching all components is very long (>30s)

Expected Result

detaching component should be short, since we are just removing nodes.

Debug Information

During org.zkoss.zkmax.bind.impl.TrackerImplEx.removeAllReference(Set<TrackerNode>), the tracker node is removed from node LinkedHashMap using _sharableTrackerNodes.values().remove( ... MapEntryValue...);

This is less performant than using _sharableTrackerNodes.remove( ... MapEntryKey... ), and cause delays in some applications.

Workaround

Attached override class for TrackerImplEx
reduce processing time from ~30s to ~2s