presentation video: https://www.youtube.com/watch?v=mhravU1HL4k
One of the lesser-known features coming with JDK 9 is experimental support for ahead-of-time (AOT) compilation. Compiling Java bytecode into ready-to-execute machine code before runtime means that many applications may benefit from quicker startup and, in the case of multiple JVM instances, even lower memory consumption. In this demo-heavy session, you will see what advantages AOT has to offer and, perhaps even more importantly, what its limitations are. You will also get the opportunity to see Java’s new AOT compilation in action and leave with the knowledge needed to experiment on your own later. Although Java’s AOT is not yet ready for production use, this is a great chance to get a sneak peek at one of HotSpot’s most exciting new technologies.
JavaCro'15 - HTTP2 Comes to Java! - David Delabassee
This document discusses the introduction of HTTP/2 support in Java and Java EE. It provides background on the limitations of HTTP/1.1 and why HTTP/2 was created, outlining key HTTP/2 features like binary framing and multiplexing. The document then explains how HTTP/2 will be supported in Java EE 8 and Java SE, allowing Java applications to take advantage of performance improvements from HTTP/2.
The document discusses the Servlet 4.0 specification led by Ed Burns and Dr. Shing-Wai Chan. It provides an overview of the major new features of HTTP/2 including request/response multiplexing, binary framing, stream prioritization, server push, and header compression. It then outlines how features like server push could potentially be exposed through the Servlet API in Servlet 4.0. It concludes with an invitation for the community to contribute to the JSR-369 page by providing a list of JIRA components, use cases for sessionless applications, and references to async and thread safety in the specification and documentation.
Presentation from JavaOne 2015.
This session, which covers use cases of JSR 356 (Java API for WebSocket) and some features of Oracle’s implementation related to enterprise applications, contains description of standard use cases and recommends optimizations and best practices for using the JSR 356 API. After that, it presents more-complex schemes involving authentication support, fallback support, and clustering.
The document discusses Oracle Cloud and its services, including Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). It describes Oracle's cloud database, Java, developer, and application services which provide fully managed services to developers. It emphasizes that Oracle Cloud can support applications both in cloud or on-premise environments.
The document discusses recent developments and future plans for JavaServer Faces (JSF). Key points include:
- JSF 2.2 introduced HTML5 friendly markup, flows for modularizing behavior, and resource library contracts for modularizing appearance.
- Emerging trends like mobile-first design, JavaScript frameworks, and statelessness need to be considered for JSF.
- JSF 2.3 planned updates include further CDI alignment, small new features like JSON ajax rendering, and ensuring compatibility with the new MVC specification.
The document introduces Oracle's Java Cloud Service. It provides a self-service application platform for running business applications in the cloud, allowing users to save time and costs through simplified provisioning. The Java Cloud Service offers three options: a SaaS extension for enriching Oracle SaaS apps; a virtual image with a hosted WebLogic instance controlled by Oracle; and a full-featured service. It is aimed at use cases like development/testing, new app development, and migrating or outsourcing apps to the cloud.
Server Side JavaScript on the Java Platform - David Delabassee
This document provides an overview of Project Avatar, which is Oracle's implementation of server-side JavaScript (Node.js) that runs on the Java Virtual Machine (JVM). It discusses how Avatar bridges Node.js and Java by allowing thousands of Node packages and Java libraries to be used together. It also describes Avatar's enterprise features like advanced multithreading, state sharing, persistence, and Java EE interoperability that allow building enterprise applications in JavaScript while leveraging existing Java infrastructure. The document concludes with a demo of Avatar's capabilities.
GraphPipe - Blazingly Fast Machine Learning Inference by Vish Abrams
GraphPipe is an open source protocol and collection of software designed to simplify machine learning model deployment and decouple it fromframework-specific model implementations.
JavaCro'15 - Java EE 8 - An instant snapshot - David Delabassee
The document discusses plans for Java EE 8 based on feedback from the Java EE community. Key points include:
- Java EE 8 will focus on HTML5/web tier enhancements, ease of development, and supporting cloud infrastructure, based on a community survey.
- New features include JSON binding APIs to map Java objects to JSON, JSON processing enhancements, server-sent events, and HTTP/2 support.
- The JSON binding and processing APIs aim to standardize JSON work in Java EE and draw from existing implementations.
Supercharge your Code to get optimal Database Performance
The document appears to be a slide deck presentation about optimizing database performance. It discusses key database performance concepts like latency and throughput. It also covers important Oracle Database performance statistics and wait events that can provide insight into where a database is spending its time and potential areas for improvement. The presentation emphasizes the importance of commits for ensuring data is safely stored to disk through the redo log and buffer cache.
Tweet4Beer - Beertap powered by Java goes IoT and JavaFX
This document discusses a project that uses Java technologies to power a beer tap via Twitter. It involves a JavaFX application that tweets to turn on a relay connected to a beer tap. A REST service in Oracle Java Cloud Service is used to control the relay. The project demonstrates using Java ME, SE Embedded, and Java EE to connect devices to the cloud as part of an Internet of Things application.
This session will explore how Java development has been brought into the open over the past decade and where it is headed in the future. Several Java developer efforts have brought open source development processes and new levels of transparency and participation into their communities. This year theJava Community Process (JCP) program celebrates twenty years of Java standards development. Since the initiation of efforts to expand the developer participation in the Java community, Java standards development is more open that it ever has been. Learn how to take part in the Java developer community, upcoming changes to the Java platform, and how you can contribute. You can participate as an individual, corporation, or nonprofit such as a Java user group (JUG). This session answers your questions about why and how to participate in the evolution of the Java platform - how you can participate in contributing to the future of Java.
The document discusses the key features and capabilities of Oracle NoSQL database including its flexible key-value data model, ACID transactions, horizontal scalability, high availability, elastic configuration, and integration with other Oracle products. It provides examples of using Oracle NoSQL for CRUD operations and defining schemas using Apache Avro. Performance testing results are shown demonstrating predictable and scalable performance as the cluster is expanded.
EJB and CDI Alignment and Strategy
Linda DeMichiel, Java EE Specification Lead at Oracle, gave a presentation on EJB and CDI alignment and strategy at Java Day Tokyo 2015. The presentation covered: (1) the history and evolution of EJB and CDI, (2) the advantages and disadvantages of when to use EJB vs CDI, (3) how Java EE has aligned managed beans, and (4) Oracle's strategy for the future alignment of EJB and CDI.
This document discusses WebSockets and the Java API for WebSockets. It provides an overview of the WebSocket protocol and browser support. It then describes the Java API specification JSR-356 and how to create WebSocket endpoints and handle events like messages using annotations or a programmatic API. It also covers security, the reference implementation Tyrus, and how WebLogic Server 12.1.3 supports Java EE 7 WebSockets including fallback options for environments without native WebSocket support.
This document discusses GraalVM and Java performance optimizations. It begins with an introduction to GraalVM and its benefits, such as running multiple languages on the JVM. It then covers key differences between ahead-of-time and just-in-time compilers, and how the JIT compiler in HotSpot uses profiling and dynamic compilation to optimize bytecode execution. The document also discusses how techniques like inlining help improve Java performance over time.
Another compilation method in java - AOT (Ahead of Time) compilation
The document discusses ahead-of-time (AOT) compilation in Java, which generates native machine code from Java bytecode ahead of runtime. AOT compilation was introduced in Java 9 as experimental and allows precompiling Java classes into shared library files that can be loaded by multiple JVMs. Benefits of AOT include faster startup times and improved performance by avoiding interpretation and just-in-time compilation overhead, though it currently has limitations such as only supporting Linux x64 and requiring the same system configuration.
MySQL Troubleshooting in Hong Kong Open Source Conference 2019 - how to use sys.diagnostics(...) and using the dimitri (http://dimitrik.free.fr/) Tools for performance analysis.
The document discusses the history and future of Java. It notes that Java was originally developed by Sun Microsystems in 1995 and later open-sourced. It is now stewarded by Oracle, who aims to evolve Java through an open process. Key topics covered include Java's large developer community, the Java Community Process for developing specifications, and ongoing work to improve and modernize the Java platform through projects like OpenJDK.
Talk on Java Community Process updates and progress towards more openness and transparency. Also includes information on Platform updates and how to participate in activities. This talk is from various events in EMEA in the Fall of 2018.
Presented by Vaibhav Choudhary, Java Platforms Team, Oracle in Walmart languages meetup on 28th April in BLR.
Java with all its recent changes are ready for Cloud and for Container. Let’s unfold the story:
Performance Improvement
Fast startup time
Low memory overhead
Respective to container boundaries, if any
The document discusses the future of Java and opportunities for developers. It outlines Oracle's commitment to open governance of Java through the Java Community Process. Recent and upcoming versions of Java like Java EE 8 and Java SE 9 introduce new features and capabilities while maintaining backwards compatibility. The future of Java development involves open collaboration through projects like OpenJDK to drive continued innovation.
This document discusses the Java Community Process (JCP) and the future of Java. It provides an overview of the JCP, including that it is an open, transparent process for evolving Java technology and that JCP members collaborate to develop Java specifications through Java Specification Requests (JSRs). It notes some of the benefits of JCP participation for developers and communities.
Learn how to take part in the Java developer community and the upcoming changes to Java - you can participate as an individual, corporation, or nonprofit such as a Java user group (JUG). This session answers questions about why and how to participate in the evolution of the Java platform.
Java and Serverless - A Match Made In Heaven, Part 1
Part 1 of 2 of the "Java and Serverless" session held at the Stockholm Java User Group Meetup in Stockholm, August 22nd, 2018. Part 1 was held by Matthew Gillard, Java and Clojure Programmer at Oracle.
Description:
Java is extremely popular for most kind of server-side
development. Its stability, reliability and the wide array of good
tooling has made sure of this for many years. Java has been able to
stride through the explosive growth of virtualization and cloud
deployments, but a new application/deployment model has arrived and
although it seems to be popular, the beautiful fire of Java has not
caught light there. Here we are talking about so-called "Serverless"
platforms.
The document discusses serverless computing and Kotlin functions. It introduces Fn Project, an open source container-native platform for serverless/function-as-a-service (FaaS) computing. Fn Project supports multiple languages like Go, Java, Python, and Kotlin and can run on Kubernetes as well as cloud providers and on-premises. The document demonstrates how to write Kotlin functions that can be deployed to Fn Project and Exoscale, a European cloud provider that supports Fn Project.
This document discusses the challenges and opportunities of serverless Java. It notes that while Java is one of the most popular languages, its usage in serverless computing has been limited. However, the Fn Project provides an open-source platform that allows for developing serverless Java applications using established Java tooling while achieving low latency and high performance through techniques like container-optimized JVMs and GraalVM compilation. Overall, serverless Java is viable through these "blueprints" and has a promising future as the ecosystem continues to evolve.
Java is Container Ready - Vaibhav - Container Conference 2018
This presentation is part of Container Conference 2018 presented by Vaibhav Choudhary, Principal Staff Engineer, Oracle: www.containerconf.in
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Container become the fundamental building block unit of modern application and for cloud. So, lets learn in this session that how you can containerize (dockerize in the demo) a java image. What are the effort we put to make Java, Container aware. How Java started understanding Container and start respecting the container boundary. We will also learn how you can leverage java features like AppCDS, AOT inside the container and make it faster than even.
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Oracle Code Online: Building a Serverless State Service for the Cloud
While application architectures are evolving to become stateless, application state and state management are naturally emerging as a service in themselves. This session outlines the development, operation, and maintenance of an application state service for the cloud with Java 9, using a serverless strategy. The presentation investigates some of the challenges of designing an infinite-capacity, infinite-processing platform capable of reliably running everything from the smallest application to a globally distributed enterprise-class infrastructure for the mobile and IoT domains.
MySQL Enterprise Backup: Better Very Large Database Backup & Recovery and More!!
The document discusses new features and enhancements in MySQL Enterprise Backup including optimistic backup, improved redo log copying, and encryption support. Optimistic backup optimizes the backup process by identifying tables that are infrequently updated and backing those up first before tables that are more active. This results in faster backups that are smaller in size and have less overhead. Encryption support allows backups to be securely encrypted prior to being written to storage. Improved redo log copying fixes issues where the redo log could be overwritten before it was fully processed during a backup. Examples of how to perform full and incremental optimistic backups and restores are also provided.
This document discusses the Java Community Process (JCP) and how developers can get involved. It provides an overview of the JCP, including how Java specifications are developed through Java Specification Requests (JSRs). It encourages developers to join the JCP as members in order to help shape Java standards and advance their careers. It also outlines upcoming changes to broaden JCP membership and participation.
Java Debuggers: A Peek Under the Hood [JavaOne 2016 CON1503]
presentation video: https://www.youtube.com/watch?v=buUkXFx9ao8
Ever wonder how the JVM “knows” how to stop at the breakpoint you set? Curious about how the various debug flags affect your application? This session examines the HotSpot’s support for debugging Java code (JVMTI and related APIs) and takes a deep dive into the implementations of some of the more interesting features used by debuggers, profilers, and other tools.
Seminole County Teach In 2017: Crooms Acadamy of Information Technology
The document discusses the importance of GitHub for software careers. It begins with an introduction to GitHub, describing how it popularized open source software by allowing developers to host projects and collaborate on code. The rest of the document covers version control with Git and additional features of GitHub like Gists, issues, and student resources that can benefit careers. It emphasizes that having an active public profile on GitHub can increase your value as a developer.
Java bytecode lies at the foundation of the the entire Java ecosystem. Regardless of what language and tools you use, if you run on the JVM, you’re using Java bytecode. Although understanding bytecode is not a requirement for all developers, a deeper understanding of how your code runs on the JVM can make understanding and resolving certain types of issues much easier. Understanding bytecode also opens the door to more-advanced techniques such as bytecode instrumentation via JVMTI and writing your own Java agent. This session starts at the very beginning and covers all the basics, with a heavy emphasis on examples.
CSI (Crash Scene Investigation) HotSpot: Common JVM Crash Causes and Solution...
The document outlines a general product direction from Oracle that is intended for informational purposes only and should not be relied upon for purchasing decisions. Any features or functionality described are subject to change at Oracle's sole discretion. Statements in the presentation relating to Oracle's future plans are forward-looking statements subject to risks and uncertainties detailed in Oracle's SEC filings. All information is current as of September 2019 and Oracle undertakes no duty to update any statements. The document is protected by copyright law.
The invokedynamic instruction (part of JSR 292) has been around since JDK7. Despite its importance to most languages that run on the JVM, many developers still do not understand how it is used or implemented. Most resources available about JSR 292 are aimed at language implementers who are experts in compiler theory and language design. This session is different, offering an overview of JSR 292 for people who are curious about how things work but do not necessarily spend all day working on java bytecode. This update of the speaker’s 2015 session on the same topic has been updated to include new uses and related changes since Java 8.
Hangs, Slowdowns, Starvation—Oh My! A Deep Dive into the Life of a Java Threa...
Why aren’t your threads behaving? Although most developers are confident about handling better-known issues such as deadlocks and simple hangs, many people still come across liveness issues that are not always easy to identify and resolve. From complete hangs that bring your application to a halt, to scalability issues, there are all sorts of things that go bump in the night. This session explores the most common types of things that can prevent your Java threads from getting work done and shows how to address them.
JDK Mission Control: Where We Are, Where We Are Going [Code One 2019]
With the recent open-sourcing of JDK Mission Control, there is even more interest in Java Mission Control and Java Flight Recorder than ever. A lot has changed, but these tools still remain on the forefront of debugging and troubleshooting Java issues, both during development and in production. This session covers these recent changes, migrating from earlier versions, and what the JDK Mission Control community’s plans are for the future.
Java Concurrency, A(nother) Peek Under the Hood [Code One 2019]
The document outlines a product direction intended for information purposes only and is not binding. Any features or functionality described may change or be removed at Oracle's sole discretion. Statements relating to Oracle's plans are forward-looking and subject to risks. All information is current as of September 2019. Oracle undertakes no duty to update any statement in light of new information or future events. The document is intended to provide a non-binding overview of Oracle's general product direction and is not a commitment to deliver any functionality.
The document discusses the Z Garbage Collector (ZGC) introduced in JDK 11. ZGC provides scalable low-latency garbage collection for heap sizes in the terabytes by using concurrent, tracing GC techniques. It aims to reduce GC pause times to less than 10ms even for very large heaps, with low overhead of around 15%. The document covers how ZGC works, its implementation details like colored pointers and load barriers, and its performance compared to Parallel GC and G1 GC based on SPECjbb2015 benchmarks.
Update on Project Valhalla delivered during the Japan Java User's Group Cross Community Conference Spring 2019 Keynote. After a very brief review of Project Valhalla and its goals, we cover nest-based access control (JEP 181, new in JDK 11) and an overview of the currently available value type prototypes (MVT and LW1).
3月20日にリリース予定のJDK10では12のJEPが提案され、実装/実現される見通しです。今回注目の新機能はJEP286: Local-Variable Type Inference- ローカル変数の型省略(var記法)です。このセッションではこのJEPの解説を中心に、その他主なJEPの紹介を行います。
Java Concurrency, A(nother) Peek Under the Hood [JavaOne 2016 CON1497]
A follow-up to my JavaOne 2015 “HotSpot Synchronization, a Peek Under the Hood” session, this year’s session continues the investigation of concurrent programming in Java, with a strong emphasis on the implementation side. You will see how the JVM supports both the Java concurrency API and the Java memory model. For example, the presentation looks at how Java language-level constructs such as the volatile keyword change the way the JVM accesses memory across a variety of CPUs. After this session, you should have a more intuitive sense of why the Java memory model imposes the restrictions that it does.
Bytecode Verification, the Hero That Java Needs [JavaOne 2016 CON1500]
Often the true mark of a successful technology is when something works so well that those who benefit the most from it are not even aware of its existence. Java’s bytecode verification undoubtedly falls into this category, but it is as vital as ever to keeping Java secure and safe. This session takes a deep dive into the safeguards that bytecode verification provides for us and shows how it continues to protect us from not only malicious code but also our own mistakes.
Lambda: A Peek Under The Hood [Java Day Tokyo 2015 6-3]
Java SE 8の主要な機能として、Lambda(クロージャ)とデフォルト・メソッド(従来ディフェンダー・メソッドもしくはエクステンション・メソッドと呼ばれていた)があります。クロージャを言語に追加することによってアプリケーションやライブラリに新たな表現の機会が与えられましたが、実際にはどのように実装すべきなのでしょうか。Lambdaはインナー・クラスによってシンプルでかつ文法的にコンパクトになるということは広く理解されていると思います。しかし、現実にはLambdaによる記述は、Invokedynamicを使った実装によって従来のJavaとは異なったものになっています。本セッションでLambdaについて、さらに深く理解してください。
Java Concurrency, A(nother) Peek Under the Hood [Java Day Tokyo 2016 3-C]
去年のJJUGナイトセミナー JVM特集で実施した「HotSpot のロック: A Peek Under the Hood」の続きのセッションです。
java.util.concurrentやJava Memory Modelの実装について、いくつかご紹介します。これらで不可欠な技術がJVMとクラス・ライブラリでどのように提供されているかを簡単に説明します。たとえば、volatileキーワードの利用時に、JITコンパイルによって生成されるコードはどのように変わるかを分析します。
InvokeDynamic for Mere Mortals [JavaOne 2015 CON7682]
presentation video: https://www.youtube.com/watch?v=gIffIZnmYBM
The invokedynamic instruction (part of JSR-292) has been around since JDK 7. Since it's introduction 4 years ago, we have seen it's adoption by many of the JVM's most popular languages, including Java itself! Despite its importance to most languages that run on the JVM, many developers still do not understand how it is used or implemented. Most resources available about JSR-292 are aimed at language implementers who are experts in compiler theory and language design. This session will be different, and will offer an overview of JSR-292 for people who are curious about how things work, but do not necessarily spend all day working on java bytecode.
What is OCR Technology and How to Extract Text from Any Image for Free
Discover the fascinating world of Optical Character Recognition (OCR) technology with our comprehensive presentation. Learn how OCR converts various types of documents, such as scanned paper documents, PDFs, or images captured by a digital camera, into editable and searchable data. Dive into the history, modern applications, and future trends of OCR technology. Get step-by-step instructions on how to extract text from any image online for free using a simple tool, along with best practices for OCR image preparation. Ideal for professionals, students, and tech enthusiasts looking to harness the power of OCR.
AI Chatbot Development – A Comprehensive Guide .pdf
Discover how generative AI is transforming IT development in this blog. Learn how using AI software development, artificial intelligence tools, and generative AI tools can lead to smarter, faster, and more efficient software creation. Explore real-world applications and see how these technologies are driving innovation and cutting costs in IT development.
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Top 10 Tips To Get Google AdSense For Your Website
Lots of bloggers are using Google AdSense now. It’s getting really popular. With AdSense, bloggers can make money by showing ads on their websites. Read this important article written by the experienced designers of the best website designing company in Delhi –
Explore the rapid development journey of TryBoxLang, completed in just 48 hours. This session delves into the innovative process behind creating TryBoxLang, a platform designed to showcase the capabilities of BoxLang by Ortus Solutions. Discover the challenges, strategies, and outcomes of this accelerated development effort, highlighting how TryBoxLang provides a practical introduction to BoxLang's features and benefits.
Ansys Mechanical enables you to solve complex structural engineering problems and make better, faster design decisions. With the finite element analysis (FEA) solvers available in the suite, you can customize and automate solutions for your structural mechanics problems and parameterize them to analyze multiple design scenarios. Ansys Mechanical is a dynamic tool that has a complete range of analysis tools.
The document discusses Dockerizing Oracle Database. It provides an overview of Docker, describes how to install Docker, build an Oracle Database Docker image, and run an Oracle Database inside a Docker container. It also outlines tips and tricks. The key steps are: installing Docker on Linux, downloading build files and the Oracle installer, building the Docker image using a script, and running the image with a simple Docker run command to start an Oracle database instance in a container.
The document provides information about Java certification courses offered by various individuals. It discusses the Oracle Certified Associate Java SE and Oracle Certified Professional Java SE certifications. It provides details on the exam objectives, structure, prerequisites and study materials for the OCAJP and OCPJP exams. It also discusses the Oracle Certified Expert Java EE certification exams and the Oracle Certified Master certification steps and objectives.
The document discusses JavaServer Faces (JSF) 2.3 and opportunities for developers to get involved. It covers UI trends like mobile-first design and JavaScript frameworks. For JSF, this means using mobile-optimized component libraries and designing for statelessness. JSF 2.3 in Java EE 8 will focus on specification clarifications, CDI alignment, and small new features. Developers can engage with JSF development by filing issues, joining the expert group, or adopting a JSR specification.
This document discusses the introduction of HTTP/2 support in Java and Java EE. It provides background on the limitations of HTTP/1.1 and why HTTP/2 was created, outlining key HTTP/2 features like binary framing and multiplexing. The document then explains how HTTP/2 will be supported in Java EE 8 and Java SE, allowing Java applications to take advantage of performance improvements from HTTP/2.
The document discusses the Servlet 4.0 specification led by Ed Burns and Dr. Shing-Wai Chan. It provides an overview of the major new features of HTTP/2 including request/response multiplexing, binary framing, stream prioritization, server push, and header compression. It then outlines how features like server push could potentially be exposed through the Servlet API in Servlet 4.0. It concludes with an invitation for the community to contribute to the JSR-369 page by providing a list of JIRA components, use cases for sessionless applications, and references to async and thread safety in the specification and documentation.
WebSocket in Enterprise Applications 2015Pavel Bucek
Presentation from JavaOne 2015.
This session, which covers use cases of JSR 356 (Java API for WebSocket) and some features of Oracle’s implementation related to enterprise applications, contains description of standard use cases and recommends optimizations and best practices for using the JSR 356 API. After that, it presents more-complex schemes involving authentication support, fallback support, and clustering.
The document discusses Oracle Cloud and its services, including Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). It describes Oracle's cloud database, Java, developer, and application services which provide fully managed services to developers. It emphasizes that Oracle Cloud can support applications both in cloud or on-premise environments.
JavaOne 2014 BOF4241 What's Next for JSF?Edward Burns
The document discusses recent developments and future plans for JavaServer Faces (JSF). Key points include:
- JSF 2.2 introduced HTML5 friendly markup, flows for modularizing behavior, and resource library contracts for modularizing appearance.
- Emerging trends like mobile-first design, JavaScript frameworks, and statelessness need to be considered for JSF.
- JSF 2.3 planned updates include further CDI alignment, small new features like JSON ajax rendering, and ensuring compatibility with the new MVC specification.
The document introduces Oracle's Java Cloud Service. It provides a self-service application platform for running business applications in the cloud, allowing users to save time and costs through simplified provisioning. The Java Cloud Service offers three options: a SaaS extension for enriching Oracle SaaS apps; a virtual image with a hosted WebLogic instance controlled by Oracle; and a full-featured service. It is aimed at use cases like development/testing, new app development, and migrating or outsourcing apps to the cloud.
Server Side JavaScript on the Java Platform - David DelabasseeJAXLondon2014
This document provides an overview of Project Avatar, which is Oracle's implementation of server-side JavaScript (Node.js) that runs on the Java Virtual Machine (JVM). It discusses how Avatar bridges Node.js and Java by allowing thousands of Node packages and Java libraries to be used together. It also describes Avatar's enterprise features like advanced multithreading, state sharing, persistence, and Java EE interoperability that allow building enterprise applications in JavaScript while leveraging existing Java infrastructure. The document concludes with a demo of Avatar's capabilities.
GraphPipe - Blazingly Fast Machine Learning Inference by Vish AbramsOracle Developers
GraphPipe is an open source protocol and collection of software designed to simplify machine learning model deployment and decouple it fromframework-specific model implementations.
The document discusses plans for Java EE 8 based on feedback from the Java EE community. Key points include:
- Java EE 8 will focus on HTML5/web tier enhancements, ease of development, and supporting cloud infrastructure, based on a community survey.
- New features include JSON binding APIs to map Java objects to JSON, JSON processing enhancements, server-sent events, and HTTP/2 support.
- The JSON binding and processing APIs aim to standardize JSON work in Java EE and draw from existing implementations.
Supercharge your Code to get optimal Database Performancegvenzl
The document appears to be a slide deck presentation about optimizing database performance. It discusses key database performance concepts like latency and throughput. It also covers important Oracle Database performance statistics and wait events that can provide insight into where a database is spending its time and potential areas for improvement. The presentation emphasizes the importance of commits for ensuring data is safely stored to disk through the redo log and buffer cache.
Tweet4Beer - Beertap powered by Java goes IoT and JavaFXBruno Borges
This document discusses a project that uses Java technologies to power a beer tap via Twitter. It involves a JavaFX application that tweets to turn on a relay connected to a beer tap. A REST service in Oracle Java Cloud Service is used to control the relay. The project demonstrates using Java ME, SE Embedded, and Java EE to connect devices to the cloud as part of an Internet of Things application.
This session will explore how Java development has been brought into the open over the past decade and where it is headed in the future. Several Java developer efforts have brought open source development processes and new levels of transparency and participation into their communities. This year theJava Community Process (JCP) program celebrates twenty years of Java standards development. Since the initiation of efforts to expand the developer participation in the Java community, Java standards development is more open that it ever has been. Learn how to take part in the Java developer community, upcoming changes to the Java platform, and how you can contribute. You can participate as an individual, corporation, or nonprofit such as a Java user group (JUG). This session answers your questions about why and how to participate in the evolution of the Java platform - how you can participate in contributing to the future of Java.
The document discusses the key features and capabilities of Oracle NoSQL database including its flexible key-value data model, ACID transactions, horizontal scalability, high availability, elastic configuration, and integration with other Oracle products. It provides examples of using Oracle NoSQL for CRUD operations and defining schemas using Apache Avro. Performance testing results are shown demonstrating predictable and scalable performance as the cluster is expanded.
EJB and CDI Alignment and Strategy
Linda DeMichiel, Java EE Specification Lead at Oracle, gave a presentation on EJB and CDI alignment and strategy at Java Day Tokyo 2015. The presentation covered: (1) the history and evolution of EJB and CDI, (2) the advantages and disadvantages of when to use EJB vs CDI, (3) how Java EE has aligned managed beans, and (4) Oracle's strategy for the future alignment of EJB and CDI.
WebSockets - Realtime em Mundo ConectadoBruno Borges
This document discusses WebSockets and the Java API for WebSockets. It provides an overview of the WebSocket protocol and browser support. It then describes the Java API specification JSR-356 and how to create WebSocket endpoints and handle events like messages using annotations or a programmatic API. It also covers security, the reference implementation Tyrus, and how WebLogic Server 12.1.3 supports Java EE 7 WebSockets including fallback options for environments without native WebSocket support.
This document discusses GraalVM and Java performance optimizations. It begins with an introduction to GraalVM and its benefits, such as running multiple languages on the JVM. It then covers key differences between ahead-of-time and just-in-time compilers, and how the JIT compiler in HotSpot uses profiling and dynamic compilation to optimize bytecode execution. The document also discusses how techniques like inlining help improve Java performance over time.
Another compilation method in java - AOT (Ahead of Time) compilationLogico
The document discusses ahead-of-time (AOT) compilation in Java, which generates native machine code from Java bytecode ahead of runtime. AOT compilation was introduced in Java 9 as experimental and allows precompiling Java classes into shared library files that can be loaded by multiple JVMs. Benefits of AOT include faster startup times and improved performance by avoiding interpretation and just-in-time compilation overhead, though it currently has limitations such as only supporting Linux x64 and requiring the same system configuration.
20190615 hkos-mysql-troubleshootingandperformancev2Ivan Ma
MySQL Troubleshooting in Hong Kong Open Source Conference 2019 - how to use sys.diagnostics(...) and using the dimitri (http://dimitrik.free.fr/) Tools for performance analysis.
The document discusses the history and future of Java. It notes that Java was originally developed by Sun Microsystems in 1995 and later open-sourced. It is now stewarded by Oracle, who aims to evolve Java through an open process. Key topics covered include Java's large developer community, the Java Community Process for developing specifications, and ongoing work to improve and modernize the Java platform through projects like OpenJDK.
Talk on Java Community Process updates and progress towards more openness and transparency. Also includes information on Platform updates and how to participate in activities. This talk is from various events in EMEA in the Fall of 2018.
Presented by Vaibhav Choudhary, Java Platforms Team, Oracle in Walmart languages meetup on 28th April in BLR.
Java with all its recent changes are ready for Cloud and for Container. Let’s unfold the story:
Performance Improvement
Fast startup time
Low memory overhead
Respective to container boundaries, if any
The document discusses the future of Java and opportunities for developers. It outlines Oracle's commitment to open governance of Java through the Java Community Process. Recent and upcoming versions of Java like Java EE 8 and Java SE 9 introduce new features and capabilities while maintaining backwards compatibility. The future of Java development involves open collaboration through projects like OpenJDK to drive continued innovation.
This document discusses the Java Community Process (JCP) and the future of Java. It provides an overview of the JCP, including that it is an open, transparent process for evolving Java technology and that JCP members collaborate to develop Java specifications through Java Specification Requests (JSRs). It notes some of the benefits of JCP participation for developers and communities.
Learn how to take part in the Java developer community and the upcoming changes to Java - you can participate as an individual, corporation, or nonprofit such as a Java user group (JUG). This session answers questions about why and how to participate in the evolution of the Java platform.
Java and Serverless - A Match Made In Heaven, Part 1Curity
Part 1 of 2 of the "Java and Serverless" session held at the Stockholm Java User Group Meetup in Stockholm, August 22nd, 2018. Part 1 was held by Matthew Gillard, Java and Clojure Programmer at Oracle.
Description:
Java is extremely popular for most kind of server-side
development. Its stability, reliability and the wide array of good
tooling has made sure of this for many years. Java has been able to
stride through the explosive growth of virtualization and cloud
deployments, but a new application/deployment model has arrived and
although it seems to be popular, the beautiful fire of Java has not
caught light there. Here we are talking about so-called "Serverless"
platforms.
The document discusses serverless computing and Kotlin functions. It introduces Fn Project, an open source container-native platform for serverless/function-as-a-service (FaaS) computing. Fn Project supports multiple languages like Go, Java, Python, and Kotlin and can run on Kubernetes as well as cloud providers and on-premises. The document demonstrates how to write Kotlin functions that can be deployed to Fn Project and Exoscale, a European cloud provider that supports Fn Project.
This document discusses the challenges and opportunities of serverless Java. It notes that while Java is one of the most popular languages, its usage in serverless computing has been limited. However, the Fn Project provides an open-source platform that allows for developing serverless Java applications using established Java tooling while achieving low latency and high performance through techniques like container-optimized JVMs and GraalVM compilation. Overall, serverless Java is viable through these "blueprints" and has a promising future as the ecosystem continues to evolve.
This presentation is part of Container Conference 2018 presented by Vaibhav Choudhary, Principal Staff Engineer, Oracle: www.containerconf.in
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Container become the fundamental building block unit of modern application and for cloud. So, lets learn in this session that how you can containerize (dockerize in the demo) a java image. What are the effort we put to make Java, Container aware. How Java started understanding Container and start respecting the container boundary. We will also learn how you can leverage java features like AppCDS, AOT inside the container and make it faster than even.
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Oracle Code Online: Building a Serverless State Service for the CloudEd Burns
While application architectures are evolving to become stateless, application state and state management are naturally emerging as a service in themselves. This session outlines the development, operation, and maintenance of an application state service for the cloud with Java 9, using a serverless strategy. The presentation investigates some of the challenges of designing an infinite-capacity, infinite-processing platform capable of reliably running everything from the smallest application to a globally distributed enterprise-class infrastructure for the mobile and IoT domains.
MySQL Enterprise Backup: Better Very Large Database Backup & Recovery and More!!Tinku Ajit
The document discusses new features and enhancements in MySQL Enterprise Backup including optimistic backup, improved redo log copying, and encryption support. Optimistic backup optimizes the backup process by identifying tables that are infrequently updated and backing those up first before tables that are more active. This results in faster backups that are smaller in size and have less overhead. Encryption support allows backups to be securely encrypted prior to being written to storage. Improved redo log copying fixes issues where the redo log could be overwritten before it was fully processed during a backup. Examples of how to perform full and incremental optimistic backups and restores are also provided.
This document discusses the Java Community Process (JCP) and how developers can get involved. It provides an overview of the JCP, including how Java specifications are developed through Java Specification Requests (JSRs). It encourages developers to join the JCP as members in order to help shape Java standards and advance their careers. It also outlines upcoming changes to broaden JCP membership and participation.
Java Debuggers: A Peek Under the Hood [JavaOne 2016 CON1503]David Buck
presentation video: https://www.youtube.com/watch?v=buUkXFx9ao8
Ever wonder how the JVM “knows” how to stop at the breakpoint you set? Curious about how the various debug flags affect your application? This session examines the HotSpot’s support for debugging Java code (JVMTI and related APIs) and takes a deep dive into the implementations of some of the more interesting features used by debuggers, profilers, and other tools.
Seminole County Teach In 2017: Crooms Acadamy of Information TechnologyEd Burns
The document discusses the importance of GitHub for software careers. It begins with an introduction to GitHub, describing how it popularized open source software by allowing developers to host projects and collaborate on code. The rest of the document covers version control with Git and additional features of GitHub like Gists, issues, and student resources that can benefit careers. It emphasizes that having an active public profile on GitHub can increase your value as a developer.
Java Bytecode Crash Course [Code One 2019]David Buck
Java bytecode lies at the foundation of the the entire Java ecosystem. Regardless of what language and tools you use, if you run on the JVM, you’re using Java bytecode. Although understanding bytecode is not a requirement for all developers, a deeper understanding of how your code runs on the JVM can make understanding and resolving certain types of issues much easier. Understanding bytecode also opens the door to more-advanced techniques such as bytecode instrumentation via JVMTI and writing your own Java agent. This session starts at the very beginning and covers all the basics, with a heavy emphasis on examples.
CSI (Crash Scene Investigation) HotSpot: Common JVM Crash Causes and Solution...David Buck
The document outlines a general product direction from Oracle that is intended for informational purposes only and should not be relied upon for purchasing decisions. Any features or functionality described are subject to change at Oracle's sole discretion. Statements in the presentation relating to Oracle's future plans are forward-looking statements subject to risks and uncertainties detailed in Oracle's SEC filings. All information is current as of September 2019 and Oracle undertakes no duty to update any statements. The document is protected by copyright law.
invokedynamic for Mere Mortals [Code One 2019]David Buck
The invokedynamic instruction (part of JSR 292) has been around since JDK7. Despite its importance to most languages that run on the JVM, many developers still do not understand how it is used or implemented. Most resources available about JSR 292 are aimed at language implementers who are experts in compiler theory and language design. This session is different, offering an overview of JSR 292 for people who are curious about how things work but do not necessarily spend all day working on java bytecode. This update of the speaker’s 2015 session on the same topic has been updated to include new uses and related changes since Java 8.
Hangs, Slowdowns, Starvation—Oh My! A Deep Dive into the Life of a Java Threa...David Buck
Why aren’t your threads behaving? Although most developers are confident about handling better-known issues such as deadlocks and simple hangs, many people still come across liveness issues that are not always easy to identify and resolve. From complete hangs that bring your application to a halt, to scalability issues, there are all sorts of things that go bump in the night. This session explores the most common types of things that can prevent your Java threads from getting work done and shows how to address them.
JDK Mission Control: Where We Are, Where We Are Going [Code One 2019]David Buck
With the recent open-sourcing of JDK Mission Control, there is even more interest in Java Mission Control and Java Flight Recorder than ever. A lot has changed, but these tools still remain on the forefront of debugging and troubleshooting Java issues, both during development and in production. This session covers these recent changes, migrating from earlier versions, and what the JDK Mission Control community’s plans are for the future.
Java Concurrency, A(nother) Peek Under the Hood [Code One 2019]David Buck
The document outlines a product direction intended for information purposes only and is not binding. Any features or functionality described may change or be removed at Oracle's sole discretion. Statements relating to Oracle's plans are forward-looking and subject to risks. All information is current as of September 2019. Oracle undertakes no duty to update any statement in light of new information or future events. The document is intended to provide a non-binding overview of Oracle's general product direction and is not a commitment to deliver any functionality.
The document discusses the Z Garbage Collector (ZGC) introduced in JDK 11. ZGC provides scalable low-latency garbage collection for heap sizes in the terabytes by using concurrent, tracing GC techniques. It aims to reduce GC pause times to less than 10ms even for very large heaps, with low overhead of around 15%. The document covers how ZGC works, its implementation details like colored pointers and load barriers, and its performance compared to Parallel GC and G1 GC based on SPECjbb2015 benchmarks.
Update on Project Valhalla delivered during the Japan Java User's Group Cross Community Conference Spring 2019 Keynote. After a very brief review of Project Valhalla and its goals, we cover nest-based access control (JEP 181, new in JDK 11) and an overview of the currently available value type prototypes (MVT and LW1).
3月20日にリリース予定のJDK10では12のJEPが提案され、実装/実現される見通しです。今回注目の新機能はJEP286: Local-Variable Type Inference- ローカル変数の型省略(var記法)です。このセッションではこのJEPの解説を中心に、その他主なJEPの紹介を行います。
Java Concurrency, A(nother) Peek Under the Hood [JavaOne 2016 CON1497]David Buck
A follow-up to my JavaOne 2015 “HotSpot Synchronization, a Peek Under the Hood” session, this year’s session continues the investigation of concurrent programming in Java, with a strong emphasis on the implementation side. You will see how the JVM supports both the Java concurrency API and the Java memory model. For example, the presentation looks at how Java language-level constructs such as the volatile keyword change the way the JVM accesses memory across a variety of CPUs. After this session, you should have a more intuitive sense of why the Java memory model imposes the restrictions that it does.
Bytecode Verification, the Hero That Java Needs [JavaOne 2016 CON1500]David Buck
Often the true mark of a successful technology is when something works so well that those who benefit the most from it are not even aware of its existence. Java’s bytecode verification undoubtedly falls into this category, but it is as vital as ever to keeping Java secure and safe. This session takes a deep dive into the safeguards that bytecode verification provides for us and shows how it continues to protect us from not only malicious code but also our own mistakes.
Lambda: A Peek Under The Hood [Java Day Tokyo 2015 6-3]David Buck
Java SE 8の主要な機能として、Lambda(クロージャ)とデフォルト・メソッド(従来ディフェンダー・メソッドもしくはエクステンション・メソッドと呼ばれていた)があります。クロージャを言語に追加することによってアプリケーションやライブラリに新たな表現の機会が与えられましたが、実際にはどのように実装すべきなのでしょうか。Lambdaはインナー・クラスによってシンプルでかつ文法的にコンパクトになるということは広く理解されていると思います。しかし、現実にはLambdaによる記述は、Invokedynamicを使った実装によって従来のJavaとは異なったものになっています。本セッションでLambdaについて、さらに深く理解してください。
Java Concurrency, A(nother) Peek Under the Hood [Java Day Tokyo 2016 3-C]David Buck
去年のJJUGナイトセミナー JVM特集で実施した「HotSpot のロック: A Peek Under the Hood」の続きのセッションです。
java.util.concurrentやJava Memory Modelの実装について、いくつかご紹介します。これらで不可欠な技術がJVMとクラス・ライブラリでどのように提供されているかを簡単に説明します。たとえば、volatileキーワードの利用時に、JITコンパイルによって生成されるコードはどのように変わるかを分析します。
InvokeDynamic for Mere Mortals [JavaOne 2015 CON7682]David Buck
presentation video: https://www.youtube.com/watch?v=gIffIZnmYBM
The invokedynamic instruction (part of JSR-292) has been around since JDK 7. Since it's introduction 4 years ago, we have seen it's adoption by many of the JVM's most popular languages, including Java itself! Despite its importance to most languages that run on the JVM, many developers still do not understand how it is used or implemented. Most resources available about JSR-292 are aimed at language implementers who are experts in compiler theory and language design. This session will be different, and will offer an overview of JSR-292 for people who are curious about how things work, but do not necessarily spend all day working on java bytecode.
What is OCR Technology and How to Extract Text from Any Image for FreeTwisterTools
Discover the fascinating world of Optical Character Recognition (OCR) technology with our comprehensive presentation. Learn how OCR converts various types of documents, such as scanned paper documents, PDFs, or images captured by a digital camera, into editable and searchable data. Dive into the history, modern applications, and future trends of OCR technology. Get step-by-step instructions on how to extract text from any image online for free using a simple tool, along with best practices for OCR image preparation. Ideal for professionals, students, and tech enthusiasts looking to harness the power of OCR.
AI Chatbot Development – A Comprehensive Guide .pdfayushiqss
Discover how generative AI is transforming IT development in this blog. Learn how using AI software development, artificial intelligence tools, and generative AI tools can lead to smarter, faster, and more efficient software creation. Explore real-world applications and see how these technologies are driving innovation and cutting costs in IT development.
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Lots of bloggers are using Google AdSense now. It’s getting really popular. With AdSense, bloggers can make money by showing ads on their websites. Read this important article written by the experienced designers of the best website designing company in Delhi –
Explore the rapid development journey of TryBoxLang, completed in just 48 hours. This session delves into the innovative process behind creating TryBoxLang, a platform designed to showcase the capabilities of BoxLang by Ortus Solutions. Discover the challenges, strategies, and outcomes of this accelerated development effort, highlighting how TryBoxLang provides a practical introduction to BoxLang's features and benefits.
Ansys Mechanical enables you to solve complex structural engineering problems and make better, faster design decisions. With the finite element analysis (FEA) solvers available in the suite, you can customize and automate solutions for your structural mechanics problems and parameterize them to analyze multiple design scenarios. Ansys Mechanical is a dynamic tool that has a complete range of analysis tools.
COMPSAC 2024 D&I Panel: Charting a Course for Equity: Strategies for Overcomi...Hironori Washizaki
Hironori Washizaki, "Charting a Course for Equity: Strategies for Overcoming Challenges and Promoting Inclusion in the Metaverse", IEEE COMPSAC 2024 D&I Panel, 2024.
Seamless PostgreSQL to Snowflake Data Transfer in 8 Simple StepsEstuary Flow
Unlock the full potential of your data by effortlessly migrating from PostgreSQL to Snowflake, the leading cloud data warehouse. This comprehensive guide presents an easy-to-follow 8-step process using Estuary Flow, an open-source data operations platform designed to simplify data pipelines.
Discover how to seamlessly transfer your PostgreSQL data to Snowflake, leveraging Estuary Flow's intuitive interface and powerful real-time replication capabilities. Harness the power of both platforms to create a robust data ecosystem that drives business intelligence, analytics, and data-driven decision-making.
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1. Effortless Migration: Learn how to migrate your PostgreSQL data to Snowflake in 8 simple steps, even with limited technical expertise.
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