framework/src/main/java/org/osgi/util/tracker/AbstractTracked.java [147:189]:
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	void trackInitial() {
		while (true) {
			S item;
			synchronized (this) {
				if (closed || (initial.size() == 0)) {
					/*
					 * if there are no more initial items
					 */
					return; /* we are done */
				}
				/*
				 * move the first item from the initial list to the adding list
				 * within this synchronized block.
				 */
				item = initial.removeFirst();
				if (tracked.get(item) != null) {
					/* if we are already tracking this item */
					if (DEBUG) {
						System.out.println("AbstractTracked.trackInitial[already tracked]: " + item); //$NON-NLS-1$
					}
					continue; /* skip this item */
				}
				if (adding.contains(item)) {
					/*
					 * if this item is already in the process of being added.
					 */
					if (DEBUG) {
						System.out.println("AbstractTracked.trackInitial[already adding]: " + item); //$NON-NLS-1$
					}
					continue; /* skip this item */
				}
				adding.add(item);
			}
			if (DEBUG) {
				System.out.println("AbstractTracked.trackInitial: " + item); //$NON-NLS-1$
			}
			trackAdding(item, null); /*
									 * Begin tracking it. We call trackAdding
									 * since we have already put the item in the
									 * adding list.
									 */
		}
	}
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scr/src/main/java/org/apache/felix/scr/impl/manager/ServiceTracker.java [809:852]:
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        void trackInitial() {
            while (true) {
                S item;
                synchronized (this) {
                    if (closed || (initial.size() == 0)) {
                        /*
                         * if there are no more initial items
                         */
                        return; /* we are done */
                    }
                    /*
                     * move the first item from the initial list to the adding list
                     * within this synchronized block.
                     */
                    item = initial.removeFirst();
                    if (tracked.get(item) != null) {
                        /* if we are already tracking this item */
                        if (DEBUG) {
                            System.out.println("AbstractTracked.trackInitial[already tracked]: " + item); //$NON-NLS-1$
                        }
                        continue; /* skip this item */
                    }
                    if (adding.contains(item)) {
                        /*
                         * if this item is already in the process of being added.
                         */
                        if (DEBUG) {
                            System.out.println("AbstractTracked.trackInitial[already adding]: " + item); //$NON-NLS-1$
                        }
                        continue; /* skip this item */
                    }
                    adding.add(item);
                }
                if (DEBUG) {
                    System.out.println("AbstractTracked.trackInitial: " + item); //$NON-NLS-1$
                }
                /*
                 * Begin tracking it. We call trackAdding
                 * since we have already put the item in the
                 * adding list.
                 */
                trackAdding(item, null); 
            }
        }
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