framework/src/main/java/org/osgi/util/tracker/AbstractTracked.java
scr/src/main/java/org/apache/felix/scr/impl/manager/ServiceTracker.java

framework/src/main/java/org/osgi/util/tracker/ServiceTracker.java
scr/src/main/java/org/apache/felix/scr/impl/manager/ServiceTracker.java

framework/src/main/java/org/osgi/util/tracker/BundleTracker.java
scr/src/main/java/org/apache/felix/scr/impl/manager/ServiceTracker.java