{"id":53599,"date":"2019-12-05T00:00:00","date_gmt":"2019-12-04T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/samyj-populyarnyj-primer-java-koda-na-stackoverflow-okazalsya-s-oshibkoj"},"modified":"2020-02-18T14:01:31","modified_gmt":"2020-02-18T11:01:31","slug":"samyj-populyarnyj-primer-java-koda-na-stackoverflow-okazalsya-s-oshibkoj","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/samyj-populyarnyj-primer-java-koda-na-stackoverflow-okazalsya-s-oshibkoj","title":{"rendered":"El ejemplo de c\u00f3digo Java m\u00e1s popular en StackOverflow result\u00f3 tener un error","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>El m\u00e1s popular <noindex><a rel=\"nofollow\" href=\"https:\/\/stackoverflow.com\/questions\/3758606\/how-to-convert-byte-size-into-human-readable-format-in-java\/3758880#3758880\">ejemplo de c\u00f3digo Java<\/a><\/noindex>, publicado en StackOverflow, <noindex><a rel=\"nofollow\" href=\"https:\/\/programming.guide\/worlds-most-copied-so-snippet.html\">result\u00f3<\/a><\/noindex> con un error que lleva a mostrar un resultado incorrecto bajo ciertas condiciones. El c\u00f3digo en cuesti\u00f3n fue publicado en 2010 y ha acumulado m\u00e1s de mil recomendaciones, y adem\u00e1s ha sido <noindex><a rel=\"nofollow\" href=\"https:\/\/arxiv.org\/pdf\/1802.02938.pdf\">copiado<\/a><\/noindex> en muchos proyectos y se encuentra en repositorios de GitHub aproximadamente 7 mil veces. Es notable que el error no fue encontrado por los usuarios que copiaron este c\u00f3digo en sus proyectos, sino por el autor original del consejo.<\/p>\n<p>El c\u00f3digo considerado convert\u00eda el tama\u00f1o en bytes a un formato legible, por ejemplo, transformando 110592 en \u00ab110.6 kB\u00bb o \u00ab108.0 KiB\u00bb. El c\u00f3digo fue propuesto como optimizado mediante logaritmos, a diferencia de un consejo anterior, donde el valor se determinaba dividiendo secuencialmente el valor original en un ciclo por 1018, 1015, 1012, 1019.<br \/>\n106, 103 y 100, hasta que el divisor fuera mayor que el valor original en bytes. Debido a c\u00e1lculos imprecisos en la variante optimizada (desbordamiento del valor long), el resultado del procesamiento de n\u00fameros muy grandes (exabytes) no era correcto. <\/p>\n<p>El autor tambi\u00e9n intent\u00f3 llamar la atenci\u00f3n sobre el problema de copiar ejemplos sin citar la fuente y sin indicar la licencia. Seg\u00fan un estudio anterior <noindex><a rel=\"nofollow\" href=\"https:\/\/empirical-software.engineering\/assets\/pdf\/icse19-snippets-slides.pdf\">realizado<\/a><\/noindex> el 46% de los desarrolladores copiaron c\u00f3digo de StackOverflow sin indicar el autor, el 75% no sab\u00eda que el c\u00f3digo se distribu\u00eda bajo la licencia CC BY-SA, y el 67% no sab\u00eda que esto implicaba la necesidad de atribuir la autor\u00eda.<\/p>\n<p>Por <noindex><a rel=\"nofollow\" href=\"https:\/\/arxiv.org\/pdf\/1910.01321.pdf\">los datos<\/a><\/noindex> En otro estudio, se destac\u00f3 que copiar ejemplos de c\u00f3digo no solo conlleva el riesgo de errores en el c\u00f3digo, sino tambi\u00e9n vulnerabilidades. Por ejemplo, al analizar en StackOverflow 72483 ejemplos de c\u00f3digo en C++, los investigadores identificaron vulnerabilidades graves en 69 ejemplos (lo que representa el 0.09%) que est\u00e1n entre las recomendaciones m\u00e1s populares. Luego, al analizar la presencia de este c\u00f3digo en GitHub, se encontr\u00f3 que el c\u00f3digo vulnerable copiado de StackOverflow estaba presente en 2859 proyectos.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fuente: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51982\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u0430\u043c\u044b\u0439 \u043f\u043e\u043f\u0443\u043b\u044f\u0440\u043d\u044b\u0439 \u043f\u0440\u0438\u043c\u0435\u0440 Java-\u043a\u043e\u0434\u0430, \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u043d\u0430 StackOverflow, \u043e\u043a\u0430\u0437\u0430\u043b\u0441\u044f \u0441 \u043e\u0448\u0438\u0431\u043a\u043e\u0439, \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0449\u0435\u0439 \u043a \u0432\u044b\u0432\u043e\u0434\u0443 \u043f\u0440\u0438 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u0445 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445 \u043d\u0435\u0432\u0435\u0440\u043d\u043e\u0433\u043e \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0430. \u0420\u0430\u0441\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u0435\u043c\u044b\u0439 \u043a\u043e\u0434 \u0431\u044b\u043b \u0440\u0430\u0437\u043c\u0435\u0449\u0451\u043d \u0432 2010 \u0433\u043e\u0434\u0443 \u0438 \u043d\u0430\u043a\u043e\u043f\u0438\u043b \u0431\u043e\u043b\u0435\u0435 \u0442\u044b\u0441\u044f\u0447\u0438 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0431\u044b\u043b \u0441\u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u043d \u0432\u043e \u043c\u043d\u043e\u0433\u0438\u0435 \u043f\u0440\u043e\u0435\u043a\u0442\u044b \u0438 \u0432\u0441\u0442\u0440\u0435\u0447\u0430\u0435\u0442\u0441\u044f \u0432 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u044f\u0445 \u043d\u0430 GitHub \u043e\u043a\u043e\u043b\u043e 7 \u0442\u044b\u0441\u044f\u0447 \u0440\u0430\u0437. \u041f\u0440\u0438\u043c\u0435\u0447\u0430\u0442\u0435\u043b\u044c\u043d\u043e, \u0447\u0442\u043e \u043e\u0448\u0438\u0431\u043a\u0443 \u043d\u0430\u0448\u043b\u0438 \u043d\u0435 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0438, \u043a\u043e\u043f\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0434\u0430\u043d\u043d\u044b\u0439 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-53599","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta 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