Announcing Cryostat 2.0: JDK Flight Recorder for Containers
Cryostat, a container-native JVM application developed by Red Hat, provides an API for monitoring and profiling Java containers using Java Flight Recorder (JFR).
Cryostat brings JFR to container age allowing analysis and profiling of multiple JVMs directly from a central hub.
By Andrea Messetti
Read: https://www.infoq.com/news/2021/11/cryostat-jvm-profiler-container/
Cryostat, a container-native JVM application developed by Red Hat, provides an API for monitoring and profiling Java containers using Java Flight Recorder (JFR).
Cryostat brings JFR to container age allowing analysis and profiling of multiple JVMs directly from a central hub.
By Andrea Messetti
Read: https://www.infoq.com/news/2021/11/cryostat-jvm-profiler-container/
Java News Roundup: Micronaut 3.2, Quarkus 2.5, JDK 18, Spring HATEOAS 1.4, JKDMon 17.0.14
It was a relatively quiet news week for the November 22nd, 2021 edition of the Java roundup featuring news from OpenJDK JEPs, JDK 18, Project Loom Build 18-loom+6-282, Spring HATEOAS 1.4, Micronaut 3.2, Quarkus 2.5.0, Apache Camel Quarkus 2.5.0 and JDKMon 17.0.14.
By Michael Redlich
Read: https://www.infoq.com/news/2021/11/java-news-roundup-nov22-2021/
It was a relatively quiet news week for the November 22nd, 2021 edition of the Java roundup featuring news from OpenJDK JEPs, JDK 18, Project Loom Build 18-loom+6-282, Spring HATEOAS 1.4, Micronaut 3.2, Quarkus 2.5.0, Apache Camel Quarkus 2.5.0 and JDKMon 17.0.14.
By Michael Redlich
Read: https://www.infoq.com/news/2021/11/java-news-roundup-nov22-2021/
Пример использования Java утилиты javap
JDK поставляется с рядом полезных утилит, размещенных в каталоге инструментов bin. Для тех, кто хочет декомпилировать байт-код, особый интерес представляет Java утилита javap.
Утилита командной строки javap, также известный как дизассемблер файлов классов Java, выводит соответствующую информацию о любом скомпилированном классе Java, который его просят проверить.
Читать: https://habr.com/ru/post/592161/?utm_campaign=592161
JDK поставляется с рядом полезных утилит, размещенных в каталоге инструментов bin. Для тех, кто хочет декомпилировать байт-код, особый интерес представляет Java утилита javap.
Утилита командной строки javap, также известный как дизассемблер файлов классов Java, выводит соответствующую информацию о любом скомпилированном классе Java, который его просят проверить.
Читать: https://habr.com/ru/post/592161/?utm_campaign=592161
Альтернатива Spring Security с использованием JJWT токена и Cookie, HttpServletRequest, HttpServletResponse
Коротко о главном. Конфигурации не нужны. На каждую страницу создаётся отдельный класс фильтр с методом аутентификации. Если к группе страниц доступ получает пользователь с одной и той же ролью, то используется один и тот же класс фильтр. Логично
Но страница авторизации устроена хитрее. Там аж 4 метода: авторизация если cookie полностью отсутствуют, аутентификация, обычная авторизация и получение изменённого cookie. Соответственно 1 и 3 методы похожи но на 1 стоит проверка cookie на null. В случае если 1 метод не отработал вызывается 2 и 3 соответственно. Можно было сделать 1 метод, но так он визуально более понятен.
Два последних метода были созданы из за невозможности возврата строки названия html страницы в стиле шаблонизатора Thymeleaf c изменённым куки. Ещё HttpServletResponse применим только внутри контроллера, поэтому в классах фильтрах только проверка Http запроса к серверу.
Читать: https://habr.com/ru/post/592257/?utm_campaign=592257
Коротко о главном. Конфигурации не нужны. На каждую страницу создаётся отдельный класс фильтр с методом аутентификации. Если к группе страниц доступ получает пользователь с одной и той же ролью, то используется один и тот же класс фильтр. Логично
Но страница авторизации устроена хитрее. Там аж 4 метода: авторизация если cookie полностью отсутствуют, аутентификация, обычная авторизация и получение изменённого cookie. Соответственно 1 и 3 методы похожи но на 1 стоит проверка cookie на null. В случае если 1 метод не отработал вызывается 2 и 3 соответственно. Можно было сделать 1 метод, но так он визуально более понятен.
Два последних метода были созданы из за невозможности возврата строки названия html страницы в стиле шаблонизатора Thymeleaf c изменённым куки. Ещё HttpServletResponse применим только внутри контроллера, поэтому в классах фильтрах только проверка Http запроса к серверу.
Читать: https://habr.com/ru/post/592257/?utm_campaign=592257
Top 15 Spring Cloud Interview Questions for Java Developers [with Answers]
Hello guys, If you are preparing for Java and Spring Boot Interview and looking for some Spring Cloud interview questions then you have come to the right place. Earlier, I have shared 15 Spring Boot...
Read: http://www.java67.com/2021/01/spring-cloud-interview-questions-with-answers-java.html
Hello guys, If you are preparing for Java and Spring Boot Interview and looking for some Spring Cloud interview questions then you have come to the right place. Earlier, I have shared 15 Spring Boot...
Read: http://www.java67.com/2021/01/spring-cloud-interview-questions-with-answers-java.html
Top 5 Hibernate and Spring Data JPA Courses for Java Developers to Learn in 2022 - Best of Lot
Hello Java programmers, if you want to learn Hibernate and Spring Data JPA, two of the leading persistence framework for enterprise Java development, and need the best resources like books,...
Read: http://www.java67.com/2021/11/best-hibernate-and-spring-data-jpa-courses.html
Hello Java programmers, if you want to learn Hibernate and Spring Data JPA, two of the leading persistence framework for enterprise Java development, and need the best resources like books,...
Read: http://www.java67.com/2021/11/best-hibernate-and-spring-data-jpa-courses.html
Top 5 Free Courses to Learn Ruby on Rails for Beginners in 2022 - Best of Lot [UPDATED]
Hello guys, welcome to this post, here you will find some of the best free courses to learn Ruby programming language and Ruby on Rails framework online from Udemy. If you don't know what Ruby is...
Read: http://www.java67.com/2018/02/5-free-ruby-and-rails-courses-to-learn-online.html
Hello guys, welcome to this post, here you will find some of the best free courses to learn Ruby programming language and Ruby on Rails framework online from Udemy. If you don't know what Ruby is...
Read: http://www.java67.com/2018/02/5-free-ruby-and-rails-courses-to-learn-online.html
Top 5 Courses to become a Software Tester and QA Analyst in 2022 - Best of Lot
Hello guys, if you want to learn Software testing, both manual and automation testing, and looking for the best online courses to master this skill then you have come to the right place. In the past,...
Read: http://www.java67.com/2020/07/top-5-courses-to-learn-software-testing.html
Hello guys, if you want to learn Software testing, both manual and automation testing, and looking for the best online courses to master this skill then you have come to the right place. In the past,...
Read: http://www.java67.com/2020/07/top-5-courses-to-learn-software-testing.html
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Top 5 Free C++ Courses for Beginners to Learn Programming Online in 2022 - Best of Lot
Hello, guys, you might know that C++ is one of the most popular and powerful object-oriented programming languages, and if you want to do low-level stuff, then it's the best language to start...
Read: http://www.java67.com/2018/02/5-free-cpp-courses-to-learn-programming.html
Hello, guys, you might know that C++ is one of the most popular and powerful object-oriented programming languages, and if you want to do low-level stuff, then it's the best language to start...
Read: http://www.java67.com/2018/02/5-free-cpp-courses-to-learn-programming.html
5 Best Free Online Courses to learn Photoshop for Graphic Design in 2022 - Best of Lot
If you want to become a web designer or Graphics designer and want to learn Photoshop and looking for the best online courses to learn Photoshop from scratch on Udemy, Pluralsight, and Coursera, then...
Read: http://www.java67.com/2021/03/free-photoshop.html
If you want to become a web designer or Graphics designer and want to learn Photoshop and looking for the best online courses to learn Photoshop from scratch on Udemy, Pluralsight, and Coursera, then...
Read: http://www.java67.com/2021/03/free-photoshop.html
Top 5 Agile and Scrum Courses for Programmers in 2022 - Best of Lot
If you are a programmer, software developer, team lead, or project manager who wants to learn Agile and Scrum in 2022 and looking for the best Agile courses, then you have come to the right place....
Read: http://www.java67.com/2020/10/best-agile-and-scrum-courses-for-programmers-developers.html
If you are a programmer, software developer, team lead, or project manager who wants to learn Agile and Scrum in 2022 and looking for the best Agile courses, then you have come to the right place....
Read: http://www.java67.com/2020/10/best-agile-and-scrum-courses-for-programmers-developers.html
Top 5 Online Courses to Learn CSS Flexbox, Grid, and Sass in 2022 - Best of Lot
Along with HTML and JavaScript, CSS is one of the core technologies of the World Wide Web (WWW) and critical skills for anyone who wants to start their career in web design and web development. No...
Read: http://www.java67.com/2020/06/top-5-courses-to-learn-advanced-css.html
Along with HTML and JavaScript, CSS is one of the core technologies of the World Wide Web (WWW) and critical skills for anyone who wants to start their career in web design and web development. No...
Read: http://www.java67.com/2020/06/top-5-courses-to-learn-advanced-css.html
Top 5 Online Courses to Learn Natural Language Processing (NLP) in 2022 - Best of Lot
Hello guys, if you want to learn Natural Langauge Processing (NLP) and looking for the best online training courses then you have come to the right place. Earlier, I have shared the best courses to...
Read: http://www.java67.com/2020/07/top-5-courses-to-learn-natural-language-processing-NLP.html
Hello guys, if you want to learn Natural Langauge Processing (NLP) and looking for the best online training courses then you have come to the right place. Earlier, I have shared the best courses to...
Read: http://www.java67.com/2020/07/top-5-courses-to-learn-natural-language-processing-NLP.html
JetBrains Launches Lightweight IDE Fleet, Cloud Workspaces for IntelliJ
Fleet is JetBrains' attempt to provide a polyglot, lightweight IDE, including support for remote workspaces. Additionally, the latest release of IntelliJ also brings support for remote development to JetBrains IDEs.
By Sergio De Simone
Read: https://www.infoq.com/news/2021/11/jetbrains-fleet-remote-workspace/
Fleet is JetBrains' attempt to provide a polyglot, lightweight IDE, including support for remote workspaces. Additionally, the latest release of IntelliJ also brings support for remote development to JetBrains IDEs.
By Sergio De Simone
Read: https://www.infoq.com/news/2021/11/jetbrains-fleet-remote-workspace/
String.format() в 3 раза быстрее в Java 17
Одним из самых удобных способов построения сложных строк является
Читать: https://habr.com/ru/post/592585/?utm_campaign=592585
Одним из самых удобных способов построения сложных строк является
String.format(). Раньше он был чрезмерно медленным, но в Java 17 стал примерно в 3 раза быстрее. В данном выпуске мы выясним, в чем разница и где это вам поможет. А также когда следует использовать format()вместо обычного сложения строк с помощью +.Читать: https://habr.com/ru/post/592585/?utm_campaign=592585
Top 5 Courses to Learn MySQL Database in 2022 - Best of Lot
Hello guys, if you want to learn MySQL and SQL in 2022 and looking for the best resources like online courses, tutorials, and books then you have come to the right place. Earlier, I have shared...
Read: http://www.java67.com/2021/11/top-5-courses-to-learn-mysql-database.html
Hello guys, if you want to learn MySQL and SQL in 2022 and looking for the best resources like online courses, tutorials, and books then you have come to the right place. Earlier, I have shared...
Read: http://www.java67.com/2021/11/top-5-courses-to-learn-mysql-database.html
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Тимлид компании «Центр 2М» расскажет о правильном выстраивании карьерного трека в Java-разработке и поделиться своим опытом в этой сфере. Минимум теории, максимальный фокус на практических советах.
Когда: 9 декабря
Регистрируйтесь, участие бесплатное: https://otus.pw/XTbkc/
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5 Free Online Courses for AWS Solution Architect Professional Exam in 2022 - Best of Lot
Hello folks, if you are preparing for the AWS Certified Solution Architect Professional exam and looking for some free online courses then you have come to the right place. In the past, I have shared...
Read: http://www.java67.com/2020/10/5-free-courses-for-aws-solution-architect-professional-exam.html
Hello folks, if you are preparing for the AWS Certified Solution Architect Professional exam and looking for some free online courses then you have come to the right place. In the past, I have shared...
Read: http://www.java67.com/2020/10/5-free-courses-for-aws-solution-architect-professional-exam.html
Top 6 Free Courses to Learn Microsoft Azure Cloud Platform in 2022 - Best of Lot
Hello guys, If you want to learn Microsoft Azure concepts and services and look for free online training courses and classes, you have come to the right place. In the past, I have shared both free...
Read: http://www.java67.com/2020/07/5-free-courses-to-learn-microsoft-azure-cloud.html
Hello guys, If you want to learn Microsoft Azure concepts and services and look for free online training courses and classes, you have come to the right place. In the past, I have shared both free...
Read: http://www.java67.com/2020/07/5-free-courses-to-learn-microsoft-azure-cloud.html
7 Top Paying Programming Languages You Can Learn in 2022 - Best of Lot
For the last couple of weeks, I have been doing some research about which programming languages beginners and experienced developers can learn in 2022 to increase their pay and packages when I...
Read: http://www.java67.com/2021/03/top-paying-programming-languages.html
For the last couple of weeks, I have been doing some research about which programming languages beginners and experienced developers can learn in 2022 to increase their pay and packages when I...
Read: http://www.java67.com/2021/03/top-paying-programming-languages.html
Top 10 Free Courses to become Fullstack Java Developer in 2022 - Best of Lot
Hello guys, if you want to become a full-stack Java developer and are looking for free online Java Full-stack development courses to kickstart your career, you have come to the right place. Earlier,...
Read: http://www.java67.com/2020/07/top10-free-courses-to-learn-full-stack.html
Hello guys, if you want to become a full-stack Java developer and are looking for free online Java Full-stack development courses to kickstart your career, you have come to the right place. Earlier,...
Read: http://www.java67.com/2020/07/top10-free-courses-to-learn-full-stack.html