vi Java Concurrency In Practice Listing 3.15.Class at Risk of Failure if Not Properly Published. 34 Chapter 4.Composing objects 31 Listing 4.1.Simple Thread-safe Counter Using the Java Monitor Pattern. 31 Listing 4.2.Using Confinement to Ensure Thread Safety. 9 Listing 4.3.Guarding State with a Private Lock. 40 Listing 4.4.Monitor-based Vehicle Tracker Implementation. 42 Listing 4.5.Mutable Point Class Similar to Java.awt.Point. 42 Listing 4.6.Immutable Point class used by DelegatingvehicleTracker. 42 Listing 4.7.Delegating Thread Safety to a ConcurrentHashMap. 43 Listing 4.8.Returning a Static Copy of the Location Set Instead of a"Live"One. 43 Listing 4.9.Delegating Thread Safety to Multiple Underlying State Variables. 44 Listing 4.10.Number Range Class that does Not Sufficiently Protect Its Invariants.Don't Do this. 45 Listing 4.11.Thread-safe Mutable Point Class. 45 Listing 4.12.Vehicle Tracker that Safely Publishes Underlying State. 46 Listing 4.13.Extending Vector to have a Put-if-absent Method. A7 Listing 4.14.Non-thread-safe Attempt to Implement Put-if-absent.Don't Do this. 48 Listing 4.15.Implementing Put-if-absent with Client-side Locking. 48 Listing 4.16.Implementing Put-if-absent Using Composition 49 Chapter 5.Building Blocks 51 Listing 5.1.Compound Actions on a vector that may Produce Confusing Results. 51 Figure 5.1.Interleaving of Getlast and Deletelast that throws ArrayIndexoutofBoundsException. 51 Listing 5.2.Compound Actions on Vector Using Client-side Locking. 52 Listing 5.3.Iteration that may Throw ArrayIndexoutofBoundsException. 52 Listing 5.4.Iteration with Client-side Locking. 52 Listing 5.5.Iterating a List with an Iterator. 53 Listing 5.6.Iteration Hidden within String Concatenation.Don't Do this. 54 Listing 5.7.ConcurrentMap Interface. 56 Listing 5.8.Producer and Consumer Tasks in a Desktop Search Application. 58 Listing 5.9.Starting the Desktop Search. 58 Listing 5.10.Restoring the Interrupted Status so as Not to Swallow the Interrupt. 60 Listing 5.11.Using CountDownLatch for Starting and Stopping Threads in Timing Tests. 61 Listing 5.12.Using FutureTask to Preload Data that is Needed Later. 62 Listing 5.13.Coercing an Unchecked Throwable to a RuntimeException. 62 Listing 5.14.Using Semaphore to Bound a Collection. 64vi Java Concurrency In Practice Listing 3.15. Class at Risk of Failure if Not Properly Published. 34 Chapter 4. Composing Objects 37 Listing 4.1. Simple ThreadͲsafe Counter Using the Java Monitor Pattern. 37 Listing 4.2. Using Confinement to Ensure Thread Safety. 39 Listing 4.3. Guarding State with a Private Lock. 40 Listing 4.4. MonitorͲbased Vehicle Tracker Implementation. 42 Listing 4.5. Mutable Point Class Similar to Java.awt.Point. 42 Listing 4.6. Immutable Point class used by DelegatingVehicleTracker. 42 Listing 4.7. Delegating Thread Safety to a ConcurrentHashMap. 43 Listing 4.8. Returning a Static Copy of the Location Set Instead of a "Live" One. 43 Listing 4.9. Delegating Thread Safety to Multiple Underlying State Variables. 44 Listing 4.10. Number Range Class that does Not Sufficiently Protect Its Invariants. Don't Do this. 45 Listing 4.11. ThreadͲsafe Mutable Point Class. 46 Listing 4.12. Vehicle Tracker that Safely Publishes Underlying State. 46 Listing 4.13. Extending Vector to have a PutͲifͲabsent Method. 47 Listing 4.14. NonͲthreadͲsafe Attempt to Implement PutͲifͲabsent. Don't Do this. 48 Listing 4.15. Implementing PutͲifͲabsent with ClientͲside Locking. 48 Listing 4.16. Implementing PutͲifͲabsent Using Composition. 49 Chapter 5. Building Blocks 51 Listing 5.1. Compound Actions on a Vector that may Produce Confusing Results. 51 Figure 5.1. Interleaving of Getlast and Deletelast that throws ArrayIndexOutOfBoundsException. 51 Listing 5.2. Compound Actions on Vector Using ClientͲside Locking. 52 Listing 5.3. Iteration that may Throw ArrayIndexOutOfBoundsException. 52 Listing 5.4. Iteration with ClientͲside Locking. 52 Listing 5.5. Iterating a List with an Iterator. 53 Listing 5.6. Iteration Hidden within String Concatenation. Don't Do this. 54 Listing 5.7. ConcurrentMap Interface. 56 Listing 5.8. Producer and Consumer Tasks in a Desktop Search Application. 58 Listing 5.9. Starting the Desktop Search. 58 Listing 5.10. Restoring the Interrupted Status so as Not to Swallow the Interrupt. 60 Listing 5.11. Using CountDownLatch for Starting and Stopping Threads in Timing Tests. 61 Listing 5.12. Using FutureTask to Preload Data that is Needed Later. 62 Listing 5.13. Coercing an Unchecked Throwable to a RuntimeException. 62 Listing 5.14. Using Semaphore to Bound a Collection. 64