# | Line 40 | Line 40 | import java.util.function.Predicate; | |
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40 | * perform some action upon state updates. | |
41 | * | |
42 | * <pre> {@code | |
43 | < | * class Handler { void handle(); ... } |
43 | > | * class Handler { void handle() { ... } } |
44 | * | |
45 | * class X { | |
46 | * private final CopyOnWriteArraySet<Handler> handlers |
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