3. Concurrency enthusiast

4. GPars @ Codehaus lead

5. Technology evangelist @ JetBrains

8. for(int i : collection) sum += i;

11. Live-locks

12. Race conditions

13. Starvation

14. Shared Mutable State

23. Tree traversal

24. File scan / search

30. No live-locks

34. df .y = 5

35. }

36. assert 15 == df .z

38. Fork/Join

39. Parallel collection processing

40. Dataflow variables/streams

41. Message Passing Communicating Sequential Processes (CSP) Dataflow Operators Actors

45. Send a message

51. case b:Breakfast=>

52. b.eat

54. ...

55. } } } }

56. me ! cake

58. case b:Breakfast=>

59. b.eat

61. ...

62. } } } }

63. me ! cake

66. public void onMessage(String msg ) {

67. String encripted = encrypt( msg );

68. reply( encripted );

69. }

70. public void onMessage(Integer number ) {

71. reply(2 * number );

72. }

73. public void onMessage(Money cash ) {

74. System.out.println( "Received a donation " + cash );

75. account .deposit( cash );

76. }

77. }

81. …

83. Software Transactional Memory

84. Locks

92. Jon Kerridge, Napier University

94. Multiverse, Jetlang, Kilim, Actorom, ActorFoundry, ...

98. http://www.jroller.com/vaclav

99. http://twitter.com/vaclav_pech