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Test Fixes
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@ -37,7 +37,7 @@ import ghidra.util.datastruct.WeakSet;
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class DomainObjectChangeSupport {
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private WeakSet<DomainObjectListener> listeners =
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WeakDataStructureFactory.createThreadUnsafeWeakSet();
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WeakDataStructureFactory.createCopyOnWriteWeakSet();
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private List<EventNotification> notificationQueue = new ArrayList<>();
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private List<DomainObjectChangeRecord> recordsQueue = new ArrayList<>();
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@ -95,8 +95,6 @@ class DomainObjectChangeSupport {
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// a new set of listeners so that any events already posted to the Swing thread do not
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// see the newly added listener.
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Collection<DomainObjectListener> previousListeners = listeners.values();
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listeners = WeakDataStructureFactory.createThreadUnsafeWeakSet();
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listeners.addAll(previousListeners);
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listeners.add(listener);
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DomainObjectChangedEvent pendingEvent = createEventFromQueuedRecords();
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@ -112,6 +110,10 @@ class DomainObjectChangeSupport {
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return;
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}
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//
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// Note: any events posted to the Swing thread may still notify this listener after it has
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// been removed, since a copy of the set will be used.
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//
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withLock(() -> listeners.remove(listener));
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}
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@ -136,19 +138,14 @@ class DomainObjectChangeSupport {
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List<EventNotification> notifications = withLock(() -> {
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DomainObjectChangedEvent e = createEventFromQueuedRecords();
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if (e == null) {
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if (e != null) {
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notificationQueue.add(new EventNotification(e, listeners.values()));
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}
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if (notificationQueue.isEmpty()) {
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return Collections.emptyList();
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}
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//
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// Note: we do not copy the listeners that are used by the event notification. This
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// provides a couple benefits:
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// -if a listener is removed, it will no longer get the event, without us having to
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// processes the already posted event notifications, and
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// -we avoid excessive copying of relatively large listener sets for frequent event
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// notifications.
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//
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notificationQueue.add(new EventNotification(e, listeners.values()));
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List<EventNotification> existingNotifications = new ArrayList<>(notificationQueue);
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notificationQueue.clear();
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return existingNotifications;
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