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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?
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Shin Tanimoto
May 18, 2019
Technology
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760
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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Transcript
ݱʹٻΊΒΕΔ+BWBίϛϡχςΟͱ ʙ++6(جௐߨԋ DDD@F ຊ+BWBϢʔβάϧʔϓϦʔμʔ "DSPRVFTU5FDIOPMPHZ$P -5% &WFSGPSUI$P -5% ୩ຊ৺ !DFSP@U
ࣗݾհ w ୩ຊ৺ 4IJO5BOJNPUP w ࣾͰಇ͘ΤϯδχΞʢओʹΞʔΩςΫτʣ w "DSPRVFTU5FDIOPMPHZגࣜձࣾ w
גࣜձࣾ&WFSGPSUI w +BWB$IBNQJPO w 0SBDMF(SPVOECSFBLFS"NCBTTBEPS w 5XJUUFS!DFSP@U w 'BDFCPPLTIJOUBOJNPUP
͖͞΄Ͳ ++6(Ϧʔμʔʹ ͳΓ·ͨ͠
͜Ε͔Β++6(ΛͲ͏͢Δͷ͔ʁ
ΞδΣϯμ ͜Ε͔Β++6(ͰΓ͍ͨ͜ͱ ͳͥ++6(ͱ$$$ͷ৫Λ͚ͨͷ͔ ʢҎ߱ɺεϥΠυඇެ։ʣ ͍·ͷຊ*5ۀքͷঢ়گΛݟͭΊ͢
ࠓޙͷίϛϡχςΟͷ͋ΓํΛߟ͑Δ ΈΜͳͷՁ؍Λଚॏ͢Δ
͜Ε͔Β++6(Ͱ Γ͍ͨ͜ͱ
ᶃ +BWBͷϦϦʔεͷै ᶄ ւ֎ͷ+6(ͱͷ࿈ܞ ᶅ ํ+BWBίϛϡχςΟͱͷ࿈ܞ ᶆ ॳ৺ऀ͚ίϯςϯπͷॆ࣮
ᶃ+BWBͷϦϦʔεͷै w എܠ w ͝ͱͷϦϦʔεαΠΫϧ ʢֶͿεϐʔυ͕ૣ͘ͳΔʣ w ϥΠηϯεϞσϧͷมߋ ʢͦΕʹ͏ࠞཚʣ
ᶃ+BWBͷϦϦʔεͷै w ࠓޙΔ͜ͱ w ษڧձͰΞοϓσʔτ༰ͷڞ༗ w άουϓϥΫςΟεͷڞ༗
ᶄւ֎+6(ͱͷ࿈ܞ w എܠ w ৽͍ٕ͠ज़ւͷ͜͏͔Βͬͯ͘Δ w ৽͍ٕ͠ज़ͷใΛಘΔબࢶΛ૿͢
ᶄւ֎+6(ͱͷ࿈ܞ w ʢ༨ஊʣ w ৽͍͠ใΛಘΔ બࢶΛ૿͢ʢதʙ্ڃऀ͚ʣ w ͍ࠐΜͩใΛڞ༗͢Δ બࢶΛݮΒ͢ʢॳʙதڃऀ͚ʣ
ᶄւ֎+6(ͱͷ࿈ܞ w ํͷ࿈ܞ w ւ֎ˠຊ w ৽͍͠ใΛಘΔ w ຊˠւ֎ w
ຊͷ։ൃݱͰഓͬͨݟͳͲͷԠ༻ࣄྫɺ ेʹւ֎ʹग़͢Ձ͕͋Δ
ͦ͜ʹཱ͔ͪͩΔɺӳޠͷน
ᶄւ֎+6(ͱͷ࿈ܞ w ӳޠͷนΛΓӽ͑Ζʂ w ʮӳޠ͕େࣄʯͬͯԯճ͘Γ͔͑͠ݴ͏ΑΓ ւ֎ΧϯϑΝϨϯεʹࢀՃ͢Δํ͕खͬऔΓૣ͍ w ʮւ֎ΧϯϑΝϨϯεʹߦ͚ʯͬͯ ԯճ͘Γ͔͑͠ݴ͏ΑΓ ӳޠηογϣϯΛ૿͢΄͏͕खͬऔΓૣ͍
ᶄւ֎+6(ͱͷ࿈ܞ w $$$ͷӳޠηογϣϯʢ˞௨༁ͳ͠ʣ w ळ w य़ w ळ ΞϯΧϯϑΝϨϯε
w य़ ϋϯζΦϯ
ᶄւ֎+6(ͱͷ࿈ܞ w ࠓޙΓ͍ͨ͜ͱ w ++6($$$ͷӳޠηογϣϯΛܧଓվળ w +0OTFOόΠΫπΞʔͷܧଓ w ւ֎ͷ+BWBΤϯδχΞ͕ຊʹཱྀߦ͢Δࡍɺ ཱྀߦઌͷίϛϡχςΟΠϕϯτʹࢀՃͯ͠Β͏
w ຊͷ+BWBΤϯδχΞ͕ւ֎Πϕϯτʹ ࢀՃొஃ͢ΔͷΛαϙʔτ͍ͨ͠ʢʂʣ
ใΛಘΔ͜ͱൃ৴͢Δ͜ͱ ͍ͣΕʹ͓͍ͯ ࣗͨͪͷΓํΛʮ٬؍తʯʹ ݟͭΊΔػձͱͳΔ
ᶅํ+BWBίϛϡχςΟͱͷ࿈ܞ w എܠ w ํͷ+BWBίϛϡχςΟ͕ొஃऀΛݺͿࡍͷ ߤඅ॓ധඅαϙʔτΛଓ͚͍ͯΔ w ͲΕཱ͚͍ͩͬͯΔ͔͔Βͳ͍ w ͦͦํͰԿʹࠔ͍ͬͯΔ͔ΛΒͳ͍
ᶅํ+BWBίϛϡχςΟͱͷ࿈ܞ w ࠓޙΓ͍ͨ͜ͱ w ֤ͷ+BWBίϛϡχςΟͱͷ ఆظతͳΦϯϥΠϯձٞ w ίϛϡχςΟӡӦͷͨΊͷϦιʔεࢧԉ
ᶆॳ৺ऀ͚ίϯςϯπͷॆ࣮ w എܠ w ++6($$$ͷ$BMMGPS1BQFSTʹ Ϩϕϧͷߴ͍Ԡื͕ଟ͘དྷΔ w ॳ৺ऀʹ͍͠ηογϣϯ͕΄ͱΜͲ w ++6(φΠτηϛφʔॳ৺ऀ͚
ʹʙճ͔͠Ͱ͖͍ͯͳ͍
ᶆॳ৺ऀ͚ίϯςϯπͷॆ࣮ w ͦ͏ͳΔഎܠ w ਓجຊతʹʮֶ͕ࣗΜͩ͜ͱʯ ʮ๊͕͍ࣗ͑ͯͨ՝ʯΛத৺ʹ͢ w ొஃ͢ΔΤϯδχΞϨϕϧ͕ߴ͍ ֶΜͩ͜ͱɺ՝ͷϨϕϧ͕ߴ͍ w
ॳ৺ऀ͚ͷηογϣϯ ͦΕͱผͰ४උ͠ͳͯ͘ͳΒͳ͍
ʢืूʣ ॳ৺ऀ͚ͷΛ͍ͨ͠ਓ ʮͦΕ͚ͩͰوॏʯͳͷͰ ͥͻφΠτηϛφʔͰͷొஃ $BMMGPS1BQFSTఏग़Λ ͍ͯͩ͘͠͞ʂ
ᶆॳ৺ऀ͚ίϯςϯπͷॆ࣮ w ࠓޙΓ͍ͨ͜ͱ w ॳ৺ऀ͚ηογϣϯϋϯζΦϯͷॆ࣮ w اۀͱΉʁ w ॳ৺ऀ͚ߨशΛߦ͏ΤϯδχΞʹରͯ͠ ΠϯηϯςΟϒΛઃ͚Δʁ
ͱɺΓ͍ͨ͜ͱ༷ʑ͋Γ·͕͢
ӡӦͷख͕Γͳ͍ʂ
ͳͥ++6(ͱ$$$ͷ ৫Λ͚ͨͷ͔ʁ
γϯϓϧͳཧ༝ɿ ӡӦͷϦιʔεෆ
ϦιʔεෆͰʁ ৫Λ͚Δʁ അࣛͳͷʁࢮ͵ͷʁ
͍··Ͱଧͬͨࡦ $$$ϘϥϯςΟΞͷืू Πϕϯτελοϑͷืू
݁Ռ ΠϕϯτӡӦ͕େ෯ʹָʹͳͬͨ ʢװࣄ͕ർฐ͠ͳ͘ͳͬͨʣ
࣍ͷ՝ ++6(װࣄͷෆ
++6(ϘϥϯςΟΞͷװࣄ͕ ࣄͷ߹ؒʹӡӦΛ͍ͯ͠Δ ϘϥϯςΟΞͳͷͰ ੵۃతͳਓ΄Ͳෛՙ͕ूத͢Δ ʢ͍͠ਓ͕શ෦Δʣ
ফۃతʹͳͬͯΔ࣌ͷ ʮ͋ΕΓ͍ͨɻ͜ΕΓ͍ͨʯ ੵۃతʹͳͬͯΔ࣌ͷ ʮφΠτηϛφʔͱ$$$ͷ४උͰ ͯͦ͘͠ΕͲ͜Ζ͡Όͳ͍ʯ
ʮΓ͍ͨ͜ͱʯͱ ʮΔ͖͜ͱʯͷ όϥϯε
װࣄձͰͷ͍͍͕ͩͨ ʮ࣍ͷʯ++6($$$ͷ དྷ݄ɺ݄ͷװࣄձ͔Β ++6($$$'BMMͷ ४උ͕࢝·Δ
ʮ$$$͕ෛ୲ͳΒ $$$Λճʹ͢Ε ͍͍͡Όͳ͍ʁʯ
ʹճ͔ͩΒͦ͜ ӡӦεΩϧΛܧଓͰ͖Δ ʢճʹ͢ΔͱɺΕΔʣ
ʮ$$$͕ෛ୲ͳΒ ֎෦ʹҕୗ͢Ε ͍͍͡Όͳ͍ʁʯ
͍·ͷ༧ࢉͰগ͠ݫ͍͠ɻ
ʮ༧ࢉ͕Γͳ͍ͳΒ $$$Λ༗ঈԽ͢Ε ͍͍͡Όͳ͍ʁʯ
༗ঈΠϕϯτΛߦ͏͜ͱʹΑΔ װࣄͷϓϨογϟʔ૿
ീํ࠹͕Γ͡ΌΜʂ
ʮ$$$͕ෛ୲Ͱ͋Ε $$$ͱ++6(ΛΓͤ ͦΕͧΕਐΉͷͰʁʯ
ͦ͏ͬͯɺࢼߦࡨޡΛ͠ͳ͕Β Γ͍ͨ͜ͱΛ Ͱ͖ΔΑ͏ʹ͢ΔͨΊʹ ৫Λ࡞͍͖ͬͯ·͢ʂ
Ҏ্ʂ ʢҎ߱εϥΠυඇެ։ʣ