Java Version 40 Download Apache Tomcat ® Welcome to the Apache Tomcat ® 9.X Software Download Page
java version 40 download Apache Tomcat ® Welcome to the Apache Tomcat ® 9.x software download page. This page provides download links for obtaining the latest version of Tomcat 9.0.x software, as well as links to the archives of older releases. Unsure which version you need? Specification versions implemented, minimum Java version required and lots more useful information may be found on the 'which version?' page. Quick Navigation. Release Integrity. You must verify the integrity of the downloaded files. We provide OpenPGP signatures for every release file. This signature should be matched against the KEYS file which contains the OpenPGP keys of Tomcat's Release Managers. We also provide SHA-512 checksums for every release file. After you download the file, you should calculate a checksum for your download, and make sure it is the same as ours. Mirrors. You are currently using https://mirror.softaculous.com/apache/ . If you encounter a problem with this mirror, please select another mirror. If all mirrors are failing, there are backup mirrors (at the end of the mirrors list) that should be available. Please see the README file for packaging information. It explains what every distribution contains. Apache Tomcat ® The Apache Tomcat ® software is an open source implementation of the Jakarta Servlet, Jakarta Server Pages, Jakarta Expression Language, Jakarta WebSocket, Jakarta Annotations and Jakarta Authentication specifications. These specifications are part of the Jakarta EE platform. The Jakarta EE platform is the evolution of the Java EE platform. Tomcat 10 and later implement specifications developed as part of Jakarta EE. Tomcat 9 and earlier implement specifications developed as part of Java EE.
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Jfokus 2020 Current state of EA and Charlie Gracie Java Engineering Group at Microsoft its uses in the JVM Overview • Escape Analysis and Consuming Optimizations • Current State of Escape Analysis in JVM JITs • Escape Analysis and Allocation Elimination in Practice • Stack allocation 2 Escape Analysis and Consuming Optimizations 3 What is Escape Analysis? • Escape Analysis is a method for determining the dynamic scope of objects -- where in the program an object can be accessed. • Escape Analysis determines all the places where an object can be stored and whether the lifetime of the object can be proven to be restricted only to the current method and/or thread. 4 https://en.wikipedia.org/wiki/Escape_analysis Partial Escape Analysis • A variant of Escape Analysis which tracks object lifetime along different control flow paths of a method. • An object can be marked as not escaping along one path even though it escapes along a different path. 5 https://en.wikipedia.org/wiki/Escape_analysis EA Consuming Optimizations 1. Monitor elision • If an object does not escape the current method or thread, then operations can be performed on this object without synchronization 2. Stack allocation • If an object does not escape the current method, it may be allocated in stack memory instead of heap memory 3. Scalar replacement • Improvement to (2) by breaking an object up into its scalar parts which are just stored as locals 6 Current State of Escape Analysis in JVM JITs 7 HotSpot C2 EA and optimizations • Flow-insensitive1 implementation based on the
` Oracle GraalVM Enterprise Edition Faster. Smarter. Leaner. Businesses are under increasing pressure to be smarter, faster and more agile at providing services to their clients and customers. Key Features A high-performance runtime for Oracle GraalVM Enterprise Edition is the modern microservices Leverages new optimization industry’s best solution for building applications algorithms to improve performance of enterprise on premise and in the cloud, offering superior applications Compiles Java applications ahead performance, enhancing competitiveness, and of time into native executables to improve startup and memory driving business innovation while reducing footprint Extends applications with libraries costs. It represents more than a decade of from other supported languages without performance penalties research into optimizing compiler and virtual Runs native languages like C/C++ in a safe mode on the JVM machine technology that provides significant Can be embedded in database. application performance and efficiency improvements. Microservices running on GraalVM consume less memory and CPU which significantly reduces cloud computing costs. WHAT IS GRAALVM ENTERPRISE? GraalVM Enterprise is a high-performance runtime that yields significant Related Products improvements in application performance and efficiency. It provides a platform for innovation to enhance competitiveness and accelerate application modernization. It GraalVM Enterprise is an is the best solution for building microservices on premise and in the cloud. entitlement
December 11, 2019 CASE STUDY: ORACLE AND TWITTER How Oracle GraalVM Supercharged Twitter’s Microservices Platform Basic Research on Computing Fundamentals Delivers Once-in-a-Lifetime Performance Improvements Holger Mueller Vice President and Principal Analyst Copy Editor: Jim Donahue Layout Editor: Aubrey Coggins Produced exclusively for Constellation Research clients TABLE OF CONTENTS At a Glance ..............................................................................................3 The Company ............................................................................................4 The Challenges ..........................................................................................4 The Solution .............................................................................................5 The Impact ...............................................................................................7 The Takeaways ...........................................................................................8 The Recommendations ..................................................................................9 Analyst Bio .............................................................................................11 About Constellation Research ..........................................................................12 AT A GLANCE Twitter · Headquarters: San Francisco Twitter runs one of the most visible social networks in the · 2018 Revenue: $3.04 billion world. Its move to a microservices infrastructure has addressed · No.
GraalVM Advisory Board | November 2020 • Project updates & upcoming release (Alina Yurenko) • GraalVM Developer survey (Alina Yurenko) o The survey is available here, please share; • Security Group update (Roxana Bradescu) o the mailing list has been set up; • Red Hat Feedback o Foivos, Red Hat: “I would personally like you to bring up how happy I (or "we" if others feel the same) am with all the help they have been providing in various issues and PRs I have opened recently. I personally feel they often go out of their way (by not just reviewing but also suggesting solutions and alternatives) to help.” o Stuck issues (Max, Red Hat) 175 days since last update: https://github.com/oracle/graal/pull/2067 - C2 style range check smearing Thomas: has been updated; the best is to ping the person working on it; o Still seeing things go into master with zero context, for example https://github.com/oracle/graal/commit/2d5eee0 Can GraalVM team give status on Public PR workflow ? we will check; o Improve trackability of issues/work related to past versions https://oss.oracle.com/pipermail/graalvm-dev/2020- November/000093.html we discussed it internally and will follow up; o Project roadmap items ? https://github.com/oracle/graal/projects is more worklists; any way to tag or target epics/roadmap style items ? highlevel wiki doc ? to-do: share the list of more high-level that we prepared for native image; Added: https://github.com/oracle/graal/issues/2762 o Arch64 - on github action move get access to an AArch64 GH runner in the graalvm-org team (this
Master your Java applications in 03.2019 Kubernetes Andy Moncsek 1 Ó Adcubum AG About me § Andy Moncsek à Architect § Creator or… see my Github § Likes coffee & HiFi & cameras § Twitter: @AndyAHCP 2 Ó Adcubum AG Agenda § Choose your (Java) Runtime § Build & execute your applications § Create your image § Run your applications in Kubernetes § Final thoughts 3 Ó Adcubum AG Typical issues You plan to move to Kubernetes? § How to integrate? § Slow startup? § No more capacity? 4 Ó Adcubum AG Choose your (Java) Runtime 5 Ó Adcubum AG Choose your (Java) Runtime § Support? § License & LTS? § Container aware? § since Java SE 8u131 & JDK 9 § changes in JDK 8u191 & JDK 10 6 Ó Adcubum AG Many (possible) options, out there Choose your (Java) Runtime + Substrate VM Hotspot + C1 & C2 Jit + Hotspot 7 Ó Adcubum AG OpenJ9 Choose your (Java) Runtime § Contributed by IBM to the Eclipse Foundation in 2017 § It replaces HotSpot JVM in the OpenJDK build § Small memory footprint & fast startup § Optimization for virtualized environments 8 Ó Adcubum AG GraalVM Choose your (Java) Runtime § Universal VM running various languages § Removes isolation & enables interoperability between programming languages § Can be integrated in various native & managed env. (OpenJDK, Node.js, OracleDB, MySQL,…) § The Graal compiler § as JIT compiler since Java 10 § as AOT compiler since Java 9 9 Ó Adcubum AG Relation to Containers / Kubernetes? Choose your (Java) Runtime § JVM needs to be aware of containers (CPU & memory) § Small memory/image footprint (run & deploy many containers)
Graalvm the Holy Grail Or Just Another Sau, Die Durchs Dorf Getrieben Wird?
GraalVM The holy grail or just another Sau, die durchs Dorf getrieben wird? Thilo Ognibeni Köln, 03. März 2020 Have you ever heard of…? Thilo Ognibeni Software Architect / Developer Usually feeling at home in the (Java) middleware … with an exception/hiccup of Vue.js Born in Aalen, studied in Ulm, ended up in KA Worshipping agile development Proudly playing the accordion 5 GraalVM – Behind the scenes GraalVM – Practical usage Disadvantages of Java › You need a JRE to run Java programs ! › Java is slow! … Is it?? › High memory consumption › Long start-up times › “Warm-up phase” of the JVM › Not really viable for serverless computing 7 GraalVM, a VM, or what? GraalVM – a VM … more *and* less! › Name of the whole project at Oracle › Implementation of the Java Virtual Machine › Support for Native Images › Truffle Language Implementation Framework › LLVM Runtime and JavaScript Runtime › Polyglot › Embeddable › Written in Java 9 GraalVM – History and Options › Development started around 7 years ago at Oracle Labs and Johannes Kepler University Linz › New compiler for the 20 year old HotSpot Compiler › First production-ready version, GraalVM 19.0, released in May 2019 › Since 19.3.0 based either on OpenJDK 1.8.0 or 11 › Available as Community or Enterprise Edition 10 Java Virtual Machines for Beginners Graal Compiler 11 https://dzone.com/articles/jvm-architecture-explained Java Virtual Machines for Beginners 12 https://jrebel.com/rebellabs/graal-and-truffle-for-polyglot-languages-on-jvm/ GraalVM Compiler › Modern JIT Compiler › Replacing C2 Compiler in HotSpot › Written in Java (modular and extendable) › Aggressive use of › Inlining › Polymorphic Inlining (using profiling data) › Partial Escape Analysis › etc.
15 Ways to Optimize Spring Boot for the Cloud ☁️ Billy Korando - @BillyKorando Developer Advocate - IBM 17 Ways to Optimize Spring Boot for the Cloud ☁️ Billy Korando - @BillyKorando Developer Advocate - IBM Keep Current http://ibm.biz/javanewsletter https://cloud.ibm.com/docs/java ️ ️️ ️ ️ Optimization Factors ️ Observability Improvement ️ ️ Resiliency EfficiencyEfficiency ️️ ️ ️️ Scalability Security ️ Sources/Additional Reading 1. You Don’t Have to Do Microservices to be on the Cloud ORDERS ADDRESSES FULFILLMENT ITEMS ORDER USER HISTORY The Distributed Monolith 1. You Don’t Have to Do Microservices to be on the Cloud Challenges with Microservices: Distributed Systems Have Emerging Problems Require Organizational Change Deep Understanding of DDD and Your Domain 1. You Don’t Have to Do Microservices to be on the Cloud With Monoliths You Can: Use Spring Boot Can be CI/CD 2. Use the Services Provided by Your Cloud Platform ☁️ 2. Use the Services Provided by Your Cloud Platform ☁️ 3. Spring Cloud Sleuth for Request Tracing and Correlation 3. Spring Cloud Sleuth for Request Tracing and Correlation <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-sleuth</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-zipkin</artifactId> </dependency> 3. Spring Cloud Sleuth for Request Tracing and Correlation Trace ID Span ID service1,2485ec27856c56f4,2485ec27856c56f4 service2,2485ec27856c56f4,9aa10ee6fbde75fa service3,2485ec27856c56f4,1210be13194bfe5 service2,2485ec27856c56f4,9aa10ee6fbde75fa service4,2485ec27856c56f4,1b1845262ffba49d service2,2485ec27856c56f4,9aa10ee6fbde75fa service1,2485ec27856c56f4,2485ec27856c56f4 3. Spring Cloud Sleuth for Request Tracing and Correlation Time well spent Time poorly spent Project Dapper 4.
OpenJ9 a Lean, Mean Java Virtual Machine Billy Korando Developer Advocate - IBM @BillyKorando william.korando@ibm.com https://billykorando.com/category/openj9/ https://github.com/wkorando/openj9-batch-processor @BillyKorando Subscribe to the Java Newsletter https://developer.ibm.com/newsletters/java/ For your Spring & JakartaEE needs https://cloud.ibm.com/docs/java @BillyKorando Ideal Demand Demand Capacity Time @BillyKorando Real World Demand Demand Capacity Time @BillyKorando Evolution of Running Applications Increasing flexibility and granularity Bare Metal @BillyKorandoTime Meeting Demand - Bare Metal Demand Capacity Time @BillyKorando Evolution of Running Applications VM VM VM Virtual Machines Increasing flexibility and granularity Bare Metal @BillyKorandoTime Meeting Demand - VMs Demand Capacity Time @BillyKorando Evolution of Running Applications VM VM Containers Managed on Cloud VM Virtual Machines Increasing flexibility and granularity Bare Metal @BillyKorandoTime Meeting Demand - Containers/Cloud Demand Capacity Time @BillyKorando Benefits of Running in the Cloud ● Rapidly expand/reduce capacity in response to demand ● Reduced capital costs ● Reduced operations costs @BillyKorando The Cloud Gives Us Compute on Demand @BillyKorando The Demand Is Metered @BillyKorando -Xmx = @BillyKorando Traditional Profile Lag Peak Resource use Throughput Capacity Time @BillyKorando Meeting Demand - Containers/Cloud Demand Capacity @BillyKorandoTime Demands of Running in the Cloud ● Fast startup ● Minimal memory footprint ● Minimal CPU usage ● Small