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現代に求められるJavaコミュニティとは
 / What should be the Java Community of Today?

現代に求められるJavaコミュニティとは
 / What should be the Java Community of Today?

JJUG CCC 2019 Spring 基調講演
#JJUG #JJUG_CCC #ccc_e1

Shin Tanimoto

May 18, 2019
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  1. ݱ୅ʹٻΊΒΕΔ+BWBίϛϡχςΟͱ͸

    ʙ++6(جௐߨԋ
    DDD@F
    ೔ຊ+BWBϢʔβάϧʔϓϦʔμʔ

    "DSPRVFTU5FDIOPMPHZ$P -5%
    &WFSGPSUI$P -5%

    ୩ຊ৺ !DFSP@U

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  2. ࣗݾ঺հ
    w ୩ຊ৺ 4IJO5BOJNPUP

    w ࣾͰಇ͘ΤϯδχΞʢओʹΞʔΩςΫτʣ
    w "DSPRVFTU5FDIOPMPHZגࣜձࣾ
    w גࣜձࣾ&WFSGPSUI
    w +BWB$IBNQJPO
    w 0SBDMF(SPVOECSFBLFS"NCBTTBEPS
    w 5XJUUFS!DFSP@U
    w 'BDFCPPLTIJOUBOJNPUP

    View Slide

  3. ͖͞΄Ͳ

    ++6(Ϧʔμʔʹ

    ͳΓ·ͨ͠

    View Slide

  4. ͜Ε͔Β++6(ΛͲ͏͢Δͷ͔ʁ

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  5. ΞδΣϯμ
    ͜Ε͔Β++6(Ͱ΍Γ͍ͨ͜ͱ
    ͳͥ++6(ͱ$$$ͷ૊৫Λ෼͚ͨͷ͔


    ʢҎ߱ɺεϥΠυඇެ։ʣ
    ͍·ͷ೔ຊ΍*5ۀքͷঢ়گΛݟͭΊ௚͢
    ࠓޙͷίϛϡχςΟͷ͋ΓํΛߟ͑Δ
    ΈΜͳͷՁ஋؍Λଚॏ͢Δ

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  6. ͜Ε͔Β++6(Ͱ

    ΍Γ͍ͨ͜ͱ

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  7. ᶃ +BWBͷϦϦʔε΁ͷ௥ै
    ᶄ ւ֎ͷ+6(ͱͷ࿈ܞ
    ᶅ ஍ํ+BWBίϛϡχςΟͱͷ࿈ܞ
    ᶆ ॳ৺ऀ޲͚ίϯςϯπͷॆ࣮

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  8. ᶃ+BWBͷϦϦʔε΁ͷ௥ै
    w എܠ
    w ൒೥͝ͱͷϦϦʔεαΠΫϧ

    ʢֶͿεϐʔυ͕ૣ͘ͳΔʣ
    w ϥΠηϯεϞσϧͷมߋ

    ʢͦΕʹ൐͏ࠞཚʣ

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  9. ᶃ+BWBͷϦϦʔε΁ͷ௥ै
    w ࠓޙ΍Δ͜ͱ
    w ษڧձͰΞοϓσʔτ಺༰ͷڞ༗
    w άουϓϥΫςΟεͷڞ༗

    View Slide

  10. ᶄւ֎+6(ͱͷ࿈ܞ
    w എܠ
    w ৽͍ٕ͠ज़͸ւͷ޲͜͏͔Β΍ͬͯ͘Δ
    w ৽͍ٕ͠ज़ͷ৘ใΛಘΔબ୒ࢶΛ૿΍͢

    View Slide

  11. ᶄւ֎+6(ͱͷ࿈ܞ
    w ʢ༨ஊʣ
    w ৽͍͠৘ใΛಘΔ

    બ୒ࢶΛ૿΍͢ʢதʙ্ڃऀ޲͚ʣ
    w ࢖͍ࠐΜͩ৘ใΛڞ༗͢Δ

    બ୒ࢶΛݮΒ͢ʢॳʙதڃऀ޲͚ʣ

    View Slide

  12. ᶄւ֎+6(ͱͷ࿈ܞ
    w ૒ํ޲ͷ࿈ܞ
    w ւ֎ˠ೔ຊ
    w ৽͍͠৘ใΛಘΔ
    w ೔ຊˠւ֎
    w ೔ຊͷ։ൃݱ৔Ͱഓͬͨ஌ݟ΍޻෉ͳͲͷԠ༻ࣄྫ͸ɺ

    े෼ʹւ֎ʹग़͢Ձ஋͕͋Δ

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  13. ͦ͜ʹཱͪ͸͔ͩΔɺӳޠͷน

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  14. ᶄւ֎+6(ͱͷ࿈ܞ
    w ӳޠͷนΛ৐Γӽ͑Ζʂ
    w ʮӳޠ͕େࣄʯͬͯԯճ͘Γ͔͑͠ݴ͏ΑΓ

    ւ֎ΧϯϑΝϨϯεʹࢀՃ͢Δํ͕खͬऔΓૣ͍
    w ʮւ֎ΧϯϑΝϨϯεʹߦ͚ʯͬͯ

    ԯճ͘Γ͔͑͠ݴ͏ΑΓ

    ӳޠηογϣϯΛ૿΍͢΄͏͕खͬऔΓૣ͍

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  15. ᶄւ֎+6(ͱͷ࿈ܞ
    w $$$ͷӳޠηογϣϯ਺ʢ˞௨༁ͳ͠ʣ
    w ळ
    w य़
    w ळ ΞϯΧϯϑΝϨϯε

    w य़ ϋϯζΦϯ

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  16. ᶄւ֎+6(ͱͷ࿈ܞ
    w ࠓޙ΍Γ͍ͨ͜ͱ
    w ++6($$$ͷӳޠηογϣϯΛܧଓվળ
    w +0OTFO΍όΠΫπΞʔͷܧଓ
    w ւ֎ͷ+BWBΤϯδχΞ͕೔ຊʹཱྀߦ͢Δࡍɺ

    ཱྀߦઌͷίϛϡχςΟΠϕϯτʹࢀՃͯ͠΋Β͏
    w ೔ຊͷ+BWBΤϯδχΞ͕ւ֎Πϕϯτʹ

    ࢀՃొஃ͢ΔͷΛαϙʔτ͍ͨ͠ʢʂʣ

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  17. ৘ใΛಘΔ͜ͱൃ৴͢Δ͜ͱ

    ͍ͣΕʹ͓͍ͯ΋

    ࣗ෼ͨͪͷ΍ΓํΛʮ٬؍తʯʹ

    ݟͭΊΔػձͱͳΔ

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  18. ᶅ஍ํ+BWBίϛϡχςΟͱͷ࿈ܞ
    w എܠ
    w ஍ํͷ+BWBίϛϡχςΟ͕ొஃऀΛݺͿࡍͷ

    ౉ߤඅ॓ധඅαϙʔτΛଓ͚͍ͯΔ
    w ͲΕ͚ͩ໾ཱ͍ͬͯΔ͔෼͔Βͳ͍
    w ͦ΋ͦ΋஍ํͰԿʹࠔ͍ͬͯΔ͔Λ஌Βͳ͍

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  19. ᶅ஍ํ+BWBίϛϡχςΟͱͷ࿈ܞ
    w ࠓޙ΍Γ͍ͨ͜ͱ
    w ֤஍ͷ+BWBίϛϡχςΟͱͷ

    ఆظతͳΦϯϥΠϯձٞ
    w ίϛϡχςΟӡӦͷͨΊͷϦιʔεࢧԉ

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  20. ᶆॳ৺ऀ޲͚ίϯςϯπͷॆ࣮
    w എܠ
    w ++6($$$ͷ$BMMGPS1BQFSTʹ͸

    Ϩϕϧͷߴ͍Ԡื͕਺ଟ͘དྷΔ
    w ॳ৺ऀʹ͸೉͍͠ηογϣϯ͕΄ͱΜͲ
    w ++6(φΠτηϛφʔ΋ॳ৺ऀ޲͚͸

    ೥ʹʙճ͔͠Ͱ͖͍ͯͳ͍

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  21. ᶆॳ৺ऀ޲͚ίϯςϯπͷॆ࣮
    w ͦ͏ͳΔഎܠ
    w ਓ͸جຊతʹʮࣗ෼ֶ͕Μͩ͜ͱʯ΍

    ʮࣗ෼๊͕͍͑ͯͨ՝୊ʯΛத৺ʹ࿩͢
    w ొஃ͢ΔΤϯδχΞ͸Ϩϕϧ͕ߴ͍

    ֶΜͩ͜ͱ΍ɺ՝୊ͷϨϕϧ͕ߴ͍
    w ॳ৺ऀ޲͚ͷηογϣϯ͸

    ͦΕͱ͸ผͰ४උ͠ͳͯ͘͸ͳΒͳ͍

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  22. ʢืूʣ

    ॳ৺ऀ޲͚ͷ࿩Λ͍ͨ͠ਓ͸

    ʮͦΕ͚ͩͰوॏʯͳͷͰ

    ͥͻφΠτηϛφʔͰͷొஃ΍

    $BMMGPS1BQFSTఏग़Λ

    ͍ͯͩ͘͠͞ʂ

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  23. ᶆॳ৺ऀ޲͚ίϯςϯπͷॆ࣮
    w ࠓޙ΍Γ͍ͨ͜ͱ
    w ॳ৺ऀ޲͚ηογϣϯ΍ϋϯζΦϯͷॆ࣮
    w اۀͱ૊Ήʁ
    w ॳ৺ऀ޲͚ߨशΛߦ͏ΤϯδχΞʹରͯ͠

    ΠϯηϯςΟϒΛઃ͚Δʁ

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  24. ͱɺ΍Γ͍ͨ͜ͱ͸༷ʑ͋Γ·͕͢

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  25. ӡӦͷख͕଍Γͳ͍ʂ

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  26. ͳͥ++6(ͱ$$$ͷ

    ૊৫Λ෼͚ͨͷ͔ʁ

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  27. γϯϓϧͳཧ༝ɿ
    ӡӦͷϦιʔεෆ଍

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  28. Ϧιʔεෆ଍Ͱʁ
    ૊৫Λ෼͚Δʁ
    അࣛͳͷʁࢮ͵ͷʁ

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  29. ͍··Ͱଧͬͨࡦ
    $$$ϘϥϯςΟΞͷืू
    Πϕϯτελοϑͷืू

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  30. ݁Ռ
    ΠϕϯτӡӦ͕େ෯ʹָʹͳͬͨ

    ʢװࣄ͕ർฐ͠ͳ͘ͳͬͨʣ

    View Slide

  31. ࣍ͷ՝୊
    ++6(װࣄͷෆ଍

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  32. ++6(͸ϘϥϯςΟΞͷװࣄ͕

    ࢓ࣄͷ߹ؒʹӡӦΛ͍ͯ͠Δ
    ϘϥϯςΟΞͳͷͰ

    ੵۃతͳਓ΄Ͳෛՙ͕ूத͢Δ

    ʢ๩͍͠ਓ͕શ෦΍Δʣ

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  33. ফۃతʹͳͬͯΔ࣌ͷ๻

    ʮ͋Ε΍Γ͍ͨɻ͜Ε΍Γ͍ͨʯ
    ੵۃతʹͳͬͯΔ࣌ͷ๻

    ʮφΠτηϛφʔͱ$$$ͷ४උͰ

    ๩ͯͦ͘͠ΕͲ͜Ζ͡Όͳ͍ʯ

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  34. ʮ΍Γ͍ͨ͜ͱʯͱ

    ʮ΍Δ΂͖͜ͱʯͷ

    όϥϯε

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  35. װࣄձͰͷ࿩୊͸͍͍͕ͩͨ

    ʮ࣍ͷʯ++6($$$ͷ࿩
    དྷ݄ɺ݄ͷװࣄձ͔Β

    ++6($$$'BMMͷ

    ४උ͕࢝·Δ

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  36. ʮ$$$͕ෛ୲ͳΒ

    $$$Λ೥ճʹ͢Ε͹

    ͍͍͡Όͳ͍ʁʯ

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  37. ൒೥ʹճ͔ͩΒͦ͜

    ӡӦεΩϧΛܧଓͰ͖Δ

    ʢ೥ճʹ͢Δͱɺ๨ΕΔʣ

    View Slide

  38. ʮ$$$͕ෛ୲ͳΒ

    ֎෦ʹҕୗ͢Ε͹

    ͍͍͡Όͳ͍ʁʯ

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  39. ͍·ͷ༧ࢉͰ͸গ͠ݫ͍͠ɻ

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  40. ʮ༧ࢉ͕଍Γͳ͍ͳΒ

    $$$Λ༗ঈԽ͢Ε͹

    ͍͍͡Όͳ͍ʁʯ

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  41. ༗ঈΠϕϯτΛߦ͏͜ͱʹΑΔ

    װࣄ΁ͷϓϨογϟʔ૿

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  42. ീํ࠹͕Γ͡ΌΜʂ

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  43. ʮ$$$͕ෛ୲Ͱ͋Ε͹

    $$$ͱ++6(Λ੾Γ཭ͤ͹

    ͦΕͧΕਐΉͷͰ͸ʁʯ

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  44. ͦ͏΍ͬͯɺࢼߦࡨޡΛ͠ͳ͕Β

    ΍Γ͍ͨ͜ͱΛ

    Ͱ͖ΔΑ͏ʹ͢ΔͨΊʹ

    ૊৫Λ࡞͍͖ͬͯ·͢ʂ

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  45. Ҏ্ʂ
    ʢҎ߱͸εϥΠυඇެ։ʣ

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