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21 Most Important Java 8 VM Options for Servers (JVM parameters)
 
06:23
In this video I explain some 21 JVM parameters which are suited for most server applications. If you have any questions, you can read those links below for more information or just ask in the comments section. You can find more infos reading following these links: - http://blog.sokolenko.me/2014/11/javavm-options-production.html - http://www.petefreitag.com/articles/gctuning/ - http://stas-blogspot.blogspot.de/2011/07/most-complete-list-of-xx-options-for.html You might also want to check out my blog at http://www.maknesium.com
Views: 5856 Maknesium.com
JVM and Tomcat optimisation - Singapore Spring User Group
 
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Speaker: Liu Dapeng, Java Tech Lead, PocketMath Dapeng works on a high scale environment with millions of requests every minute. He has worked a lot on performance in the past years and will share some of the most interesting optimisations he has worked on this year. Slides: https://docs.google.com/presentation/d/1zUS7vMv4y3RmAy_1mq695zKk7zyPETpTSsippO3WwrQ/edit?usp=docslist_api Event Page: http://www.meetup.com/singasug/events/227873656/ Produced by Engineers.SG Help us caption & translate this video! http://amara.org/v/WCeh/
Views: 2095 Engineers.SG
Minecraft JVM Arguments and Optimization
 
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Overview of some basic JVM Arguments and how they can be used to maximize the resources on your PC for playing Minecraft. Link: https://www.minecraftforum.net/forums/support/unmodified-minecraft-client/tutorials-and-faqs/2882324-java-jvm-arguments-for-minecraft-java-edition =========================== Facebook: www.facebook.com/palmerglaytes/ Twitch: www.twitch.tv/palmerglaytes
Views: 10212 palmerg
Debug JVM using JVisual VM | Heap Dump | Thread Dump | Profiling | Tech Primers
 
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This video covers how to use JVisual VM to see the heap dump, thread dump and profiling options of the JVM. Slack Community: https://techprimers.slack.com Twitter: https://twitter.com/TechPrimers Facebook: http://fb.me/TechPrimers GitHub: https://github.com/TechPrimers or https://techprimers.github.io/ Video Editing: iMovie Background Music: Broke For Free - Day Bird https://brokeforfree.bandcamp.com/track/day-bird The Passion HiFi - What We Came To Do Joakim Karud
Views: 9980 Tech Primers
Building and Tuning High Performance Java Platforms
 
01:32:07
Recorded at SpringOne2GX 2015 Speaker: Emad Benjamin, VMWare Slides: http://www.slideshare.net/SpringCentral/building-and-tuning-high-performance-java-platforms This session will cover various GC tuning techniques and how to best build platform engineered systems; in particular the focus will be on tuning large scale JVM deployments. It is true that half of the world's Java applications have 2.x more hardware provisioned than what they really need, and 90% of these applications miss their SLA. In this session we showcase why this is the case, and demonstrate sizing techniques on how to platform engineer such systems without the need for over-provisioning and hence meeting SLA in a more feasible way. Come to this session to learn about GC tuning recipe that can give you the best configuration for latency sensitive applications. While predominantly most enterprise class Java workloads can fit into a scaled-out set of JVM instances of less than 4GB JVM heap, there are workloads in the in memory database space that require fairly large JVMs. We will look at various Java platform scales, some holding a few large JVMs of 90GB heap space, while other platforms are of thousands of JVM instances of less than 4GB heap space on each. We will also take a close look at an example XYZCars.com where a microservices approach was designed and deployed, we will talk through how to more correctly deploy microservices without out causing fragmentation of scale, and hence without impeding performance. In this session we take a deep dive into the issues and the optimal tuning configurations for tuning large JVMs in the range of 4GB to 360GB, using the GC tuning recipes that were gained over the past 15 years of GC tuning engagements. You should be able to walk away with the ability to commence a decent GC tuning exercise on your own. The session summarizes the techniques and the necessary JVM options needed to accomplish these complex tuning tasks, in addition to various virtualization best practices when dealing with such large Java systems. Naturally when tuning large scale JVM platforms, the underlying hardware tuning cannot be ignored, hence the session will take detour from the traditional GC tuning talks out there and dive into how you optimally size a platform for enhanced memory and CPU consumption.
Views: 15624 SpringDeveloper
JDK 9, 10, and 11: Pitfalls for the Unwary
 
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Simon Ritter, Deputy CTO, Azul Systems The significant change in JDK 9 was the Java Platform Module System (also known as Project Jigsaw). With the encapsulation of internal APIs such as sun.misc.Unsafe, migrating applications to JDK 9 (or JDK 10 or JDK 11) will potentially require more work than moving between releases used to. This session looks at the areas of JDK 9, 10, and 11 that may affect application migration. It covers all aspects: Java language syntax, class libraries, and JVM options (a significant number of which have changed in these releases). Starting with JDK 9, features that were previously deprecated are now actually being removed from the JDK. The presentation discusses these changes in terms of backward compatibility.
Views: 552 Oracle Developers
Eclipse - Run Configuration
 
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Eclipse - Run Configuration Watch More Videos at: https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Amit Diwan, Tutorials Point India Private Limited
Webinar: Spring Boot and Ratpack Web Framework
 
01:13:17
Speaker: Danny Hyun Danny's notes: https://github.com/danhyun/spring-ratpack-2016 With the advent of Ratpack and Spring Boot, people think you need to choose between one or the other. That couldn’t be further from the truth. The only place where they overlap is in serving web requests. Spring Framework is a very rich ecosystem including but not limited to DI, web mvc, data, security, etc. Ratpack focuses on rapid web app prototyping and iteration balancing low resource utilization, high performance and developer friendliness. We’ll explore the ways in which Ratpack and Spring Boot work in harmony.
Views: 3074 SpringDeveloper
Reactive Spring Deep Dive: Building & Testing Reactive Cloud-native Java Microservices
 
03:05:06
with Mark Heckler With Reactive programming developers can build message-driven, elastic, resilient, responsive services - yet many don't know where to begin. The Reactive Streams initiative gives a baseline and Project Reactor is a great way to get immediately productive. Moving to a reactive, non-blocking model is not without its challenges. Relatively speaking, a blocking model is much simpler to code, debug, and troubleshoot. How do we handle exceptions in a never-ending flow of values? How can we provide options for publishers that still keep subscribers happy...and functional? How can we debug & fix things if the wheels come off? We will explore the net-new Netty-based web runtime and show you how to: integrate easily with existing Spring-stack technologies easily transition from blocking to reactive applications & systems build reactive data pipelines from your microservices all the way to the metal define your API in an imperative style and functionally, reaping all benefits both ways leverage powerful new testing mechanisms to make code better and life easier The presenter will code all examples live and in real time. Come to gain real, practical knowledge!
Views: 5872 Devoxx
Tuning Large Scale Java Platforms
 
01:32:28
Recorded at SpringOne2GX 2014. Speakers: Emad Benjamin, Jamie O'Meara Slides: http://www.slideshare.net/SpringCentral/tuning-large-scale-java-platforms The session will cover various GC tuning techniques, in particular focus on tuning large scale JVM deployments. Come to this session to learn about GC tuning recipe that can give you the best configuration for latency sensitive applications. While predominantly most enterprise class Java workloads can fit into a scaled-out set of JVM instances of less than 4GB JVM heap, there are workloads in the in memory database space that require fairly large JVMs. In this session we take a deep dive into the issues and the optimal tuning configurations for tuning large JVMs in the range of 4GB to 128GB. In this session the GC tuning recipe shared is a refinement from 15 years of GC engagements and an adaptation in recent years for tuning some of the largest JVMs in the industry using plain HotSpot and CMS GC policy. You should be able to walk away with the ability to commence a decent GC tuning exercise on your own. The session does summarize the techniques and the necessary JVM options needed to accomplish this task. Naturally when tuning large scale JVM platforms, the underlying hardware tuning cannot be ignored, hence the session will take detour from the traditional GC tuning talks out there and dive into how you optimally size a platform for enhanced memory consumption. Lastly, the session will also cover Pivotal Application Fabric reference architecture where a comprehensive performance study was done.
Views: 6678 SpringDeveloper
Six principles for building fault tolerant microservices on the JVM by Christopher Batey
 
50:27
Are you developing applications that communicate over a network? Of course you are! This talk will take you through all the ways you can build fault-tolerant applications and how, once you get your team in the mindset that everything will eventually fail, dealing with the failures gracefully is no more work than building fragile applications. With supporting slides, I'll cover the theory and motivation behind moving to a more distributed architecture and then go through the pitfalls and the strategies for improving fault-tolerance, backed up with real examples from the system I built at Sky television. After an introduction the talk will be split into 6 sections/principles/lessons learned from the field: Implementing SLAs + timeouts in a networked environment Proactively avoiding work: bound your queues Failing gracefully + don’t cascade failures Circuit breaking unreliable dependencies Kill switching unreliable dependencies Know it is your fault: monitoring a micro service architecture
Views: 9722 Devoxx
Remote Debug Java Application Running in Tomcat using Eclipse
 
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JPDA (Java Platform Debugger Architecture) Parameters: 1. JPDA_TRANSPORT - (Optional) JPDA transport used when the "jpda start" command is executed. The default is "dt_socket". 2. JPDA_ADDRESS - (Optional) Java runtime options used when the "jpda start" command is executed. The default is localhost:8000. 3. JPDA_SUSPEND - (Optional) Java runtime options used when the "jpda start" command is executed. Specifies whether JVM should suspend execution immediately after startup. Default is "n". 4. JPDA_OPTS - (Optional) Java runtime options used when the "jpda start" command is executed. If used, JPDA_TRANSPORT, JPDA_ADDRESS, and JPDA_SUSPEND are ignored. Thus, all required jpda options MUST be specified.
Views: 3848 Onkar Kotasthane
Debug option in IntelliJ
 
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Setting debug option in IntelliJ Below is the debug setting passed to the JVM -Dmaven.surefire.debug Below are spring specific setting to load particular profiles -Dspring.profiles.active=test,aop the below are Maven targets clean test
Views: 406 Ayub Khan
Microservices for the Masses with Spring Boot, JHipster, and JWT by Matt Raible
 
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Microservices are all the rage and being deployed by many Java Hipsters. If you’re working on a large team that needs different release cycles for product components, microservices can be a blessing. If you’re working at your VW Restoration Shop and running its online store with your own software, having five services to manage and deploy can be a real pain. Share your knowledge and experience about microservices in this informative and code-heavy talk. We’ll use JHipster (a Yeoman generator) to create Angular + Spring Boot apps on separate instances with a unified front-end. I’ll also show you options for securing your API gateway and individual applications using JWT. Heroku, Kubernetes, Docker, ELK, Spring Cloud, Okta; there will be plenty of interesting demos to see! Matt Raible - Java Champion and Developer Advocate at Okta with a passion for skiing, mountain biking, VWs, and good 🍺. Driving a '66 21-window and a '90 Syncro. Made in Montana. @mraible on Twitter.
Views: 14570 Devoxx
Prometheus Monitoring for Java Web Applications w o Modifying Source Code by Fabian Stäber
 
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The Prometheus monitoring tool follows a white-box monitoring approach: Applications actively provide metrics about their internal state to the Prometheus server. In order to instrument an application with Prometheus metrics, you have to add a metrics library and call that library in the application's source code. However, DevOps teams do not always have the option to modify the source code of the applications they are running. This talk shows how to instrument Java Web Applications with Prometheus metrics without modifying the application's source code. The implementation uses a variety of lesser-known but useful JVM features and libraries: Java agents, Bytecode manipulation with Byte Buddy, custom class loaders, reflection without loading class dependencies, thread locals, weak references, Docker for running application servers in integration tests. Browsing through the demo code we will learn some interesting facts about module systems in application servers and class loaders in general. # Fabian Stäber Dr. Fabian Stäber is software developer, research and development lead, consultant, architect, at ConSol Software GmbH in Munich, Germany. Fabian is excited about Java server development, distributed systems, operations, and monitoring. His academic research was on decentralized, peer-to-peer-based network architectures.
Views: 5643 Devoxx
Java Buildpack in 2017
 
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Java Buildpack in 2017 [B] - Ben Hale, Pivotal Over the years, the Java Experience team has worked hard to ensure that Cloud Foundry was the best place to run Java applications in the cloud. To that end, we ensure that every year adds new functionality, new integrations, and improves what's already there. This session will discuss some of the exciting new integrations as well as the recent improvements made to JVM memory calculation. Ben Hale Pivotal Software, Inc. Cloud Foundry Java Experience Lead Ben Hale leads Pivotal's efforts to constantly improve the Java experience on Cloud Foundry. Recently he has been working on the Cloud Foundry Java Buildpack with an eye to making it the best place to run Java applications, in the Cloud or otherwise. In addition, he leads the team that is revamping the Cloud Foundry Java Client, a Java language binding on top of the Cloud Foundry REST APIs. Prior to working on Cloud Foundry, Ben worked on large-scale middleware management tools, tc Server, dm Server (OSGi), and Spring. If you go back far enough, he even worked on a network management and monitoring application, but will deny it when asked. Ben has been a regular on the conference circuit for the last 10 years, speaking at Spring One, Cloud Foundry Summit, Devoxx, No Fluff Just Stuff, and more.
Views: 1710 Cloud Foundry
Servlet or Reactive Stacks: The Choice is Yours. Oh No... The Choice is Mine! - Rossen Stoyanchev
 
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Spring Framework 5.0 provides a choice of two web stack. One is the existing Servlet based Spring MVC and the other is the Reactive Streams (and Reactor) based Spring WebFlux that also supports non-Servlet containers such as Netty and Undertow. To make the choice even more interesting in 5.0 Spring MVC also supports the use of reactive libraries for orchestrating remote HTTP service calls, using reactive data repositories, and so on. In this session we'll try and make sense of these options by comparing the execution models of each stack in the context of several common web application scenarios as well as some additional scenarios that have been harder to do on a traditional Servlet stack. The session will you help you to understand just how much reactive mileage you can get out of your Servlet stack and what more you can do with a reactive stack. We'll use sample code to demonstrate reactive features and behavior (e.g. back pressure) on each stack. Knowledge of using reactive libraries such as Reactor or RxJava is very helpful but not required for this session. Rossen Stoyanchev, Spring Framework Developer, Pivotal Filmed at SpringOne Platform 2017
Views: 3400 SpringDeveloper
Cure for noisy tremolo springs
 
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The tremolo springs on some guitars ring so loud when playing that they're audible through the amp, and add all sorts of unsavory dissonant overtones to your notes. This is a good cure.
Views: 150882 Gray Nicholson
Building Cloud Native Applications with Cloud Foundry and Spring
 
01:05:35
Speaker: Kenny Bastani Title: Building Cloud Native Applications with Cloud Foundry and Spring Abstract:In this talk I will introduce you to a set of tools for building cloud-native JVM applications. We will take a look at some of the common patterns for microservice architectures and how to use Cloud Foundry to deploy multiple microservices to the cloud. We will also dive into a microservices example project of a cloud-native application built using Spring Boot and Spring Cloud. Using this example project, I will show you how to use Cloud Foundry to spin up a microservice cluster using containers. We will then explore what a large multi-container cloud-native application looks like when using self-describing REST APIs that link multiple microservices together. Bio: Spring Developer Advocate at Pivotal and a passionate open source contributor. Kenny is the co-author of O'Reilly's Cloud Native Java, a book that introduces developers to the patterns and practices of building cloud-native JVM microservices. Event Page: http://www.meetup.com/singasug/events/230141951/ Produced by Engineers.SG Help us caption & translate this video! http://amara.org/v/ITgD/
Views: 3021 Engineers.SG
REST in an Async world - JAX-RS Client API, Synchronous vs. Asynchronous, Client-Side vs Server-Side
 
01:01:01
REST in an Async world - JAX-RS Client API, Synchronous vs. Asynchronous, Client-Side vs Server-Side When designing microservices exchanges, there are multiple options but REST is the one that always comes to mind first. It's clearly the most popular approach, i.e. the de-facto standard. API such JAX-RS which does a great job of hiding all the low-level details behind RESTful calls. Complexity really starts to arise when multiple remote services need to be consumed in highly efficient manner. During this technical session, we will cover in details different solutions and best practices to efficiently consume REST services. Among others, we will discuss - Synchronous Vs. Asynchronous - Jersey Reactive Client API - Popular Reactive libraries (e.g. RxJava) - JAX-RS 2.1 Client API
Views: 7198 Java
Developing microservices with aggregates - Chris Richardson
 
01:09:50
Recorded at SpringOne Platform 2016. Slides: http://www.slideshare.net/SpringCentral/developing-microservices-with-aggregates The Domain Model pattern is a great way to develop complex business logic. Unfortunately, a typical domain model is a tangled, birds nest of classes. It can’t be decomposed into microservices. Moreover, business logic often relies on ACID transactions to maintain consistency. Fortunately, there is a solution to this problem: aggregates. An aggregate is an often overlooked modeling concept from the must read book Domain Driven Design. In this talk you will learn how aggregates enable you to develop business logic for the modern world of microservices and NoSQL. We will describe how to use aggregates to design modular business logic that can be partitioned into microservices. You will learn how aggregates enable you to use eventual consistency instead of ACID. We will describe the design of a microservice that is built using aggregates, and Spring Cloud.
Views: 80513 SpringDeveloper
Managing and Monitoring Spring Integration Applications
 
01:21:14
Recorded at SpringOne 2GX 2012 in Washington, DC Speaker: Gary P. Russell Note: this session is a follow on to Gary's popular June 2012 webinar, located here http://www.youtube.com/watch?v=fkZcF47NRu0 In this presentation we will discuss the options for managing and monitoring applications that use Spring Integration. It will provide a comprehensive overview of the extensive support for JMX provided by Spring Integration, both in terms of providing access to Spring Integration internals, as well as creating a JMX client to interact with local and remote MBeanServers. In addition, we will show how to use the Spring Integration plugin for Spring Insight to drill down into Spring Integration flow processing to examine application performance. Topics include: Using the Integration MBean Exporter, and the MBeans it registers, for analyzing Messaging Endpoints and Channels. Exporting the Integration MBean Exporter itself as an MBean, to gain access to it's attributes and operations. Using the Control Bus to start and stop endpoints. Using the Spring Integration plugin for Spring Insight to get a real-time view of your application and its performance. Enabling and using Message History Using the orderly shutdown mechanism available in Spring Integration 2.2. Using JMX endpoints (with local and remote MBeanServers) to monitor attributes, invoke operations, publish notifications, and receive notifications.
Views: 10823 SpringDeveloper
Webinar: Getting Reactive with Spring Framework 5.0 GA
 
01:18:42
Speakers: As a major revision of the core Spring Framework, 5.0 comes with a Java 8+ baseline and many infrastructure refinements: e.g. our own Commons Logging bridge autodetecting Log4j 2, SLF4J, JUL by default; streamlined use of Servlet 3.1+; and support for JUnit 5.0! Rest assured that the reactive focus does not impact the existing Spring MVC model; these options live alongside each other. Work continues on the traditional servlet-based Spring MVC stack; there are many further refinements across the framework. Join Juergen Hoeller, Rossen Stoyanchev, Stephane Maldini and the Spring Team to learn about: * Reactive programming: Spring WebFlux framework built on Reactor 3.1, with support for RxJava 2.1 and running on Tomcat, Jetty, Netty or Undertow. * Functional style with Java 8 & Kotlin: several API refinements and Kotlin extensions across the framework, in particular for bean registration and functional web endpoints. * Integration with Java EE 8 APIs: support for Servlet 4.0, Bean Validation 2.0, JPA 2.2, as well as the JSON Binding API (as an alternative to Jackson/Gson in Spring MVC). * JDK 9 support: fully aligned with JDK 9 at runtime, on the classpath as well as the module path (on the latter: as filename-based “automatic modules” for the time being). Attendees will also learn about the role of Project Reactor and its Reactive Streams foundation as the core reactive engine not only for Spring Framework, but increasingly across the Spring ecosystem. Spring Framework 5.0 adopters will benefit from an in-depth understanding of Project Reactor as they start using the 5.0 release.
Views: 5186 SpringDeveloper
Spring boot:  changing port, externalizing configurations and changing servlet containers
 
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Spring Boot Essentials Playlist: https://www.youtube.com/playlist?list=PLj5fYy-TIvPdjRRHaZH4BqsmKP7kvRER6
Views: 556 Amit Kumar
Spring Data JDBC - Many to Many Relationships
 
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Learn how to implement Many to Many relationships with Spring Data JDBC - what are the options and what are the tradeoffs. Additional reading: - https://spring.io/blog/2018/09/24/spring-data-jdbc-references-and-aggregates In my channel I discuss things I believe are relevant to either Java & Spring beginners, or advanced developers who want to stay up to date. Feedback is very much welcome, either here in comments or on Twitter https://twitter.com/maciejwalkowiak -- Icons: Icons made by http://www.freepik.com from https://www.flaticon.com is licensed by CC 3.0 BY (http://creativecommons.org/licenses/by/3.0/)
Views: 673 Spring Academy
JUnit Cucumber Tutorial 01 - Setting Up Cucumber
 
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Java Cucumber JUnit WebDriver video tutorial on setting up Cucumber in a Windows environment. Blog Post: http://www.thetestroom.com/installing-cucumber-tutorial/ Eclipse Download: https://www.eclipse.org/downloads/ Java JRE Download: http://www.oracle.com/technetwork/java/javase/downloads/java-se-jre-7-download-432155.html Video Tutorial Playlists: Java JUnit WebDriver: https://www.youtube.com/watch?v=trRerBifjX0&list=PL_noPv5wmuO-JwfM6uiLcg_IlP9E8U1Hv&index=2 Top Ten Tech Tips: https://www.youtube.com/watch?v=IOC3C83fuTM&list=PL_noPv5wmuO8J36CYT-wkw6tGtNk5ICIN Java Cucumber WebDriver: https://www.youtube.com/watch?v=pD4B839qfos&list=PL_noPv5wmuO_t6yYbPfjwhJFOOcio89tI Ruby RSpec WebDriver: https://www.youtube.com/watch?v=FgGOa7Mxoxg&list=PL_noPv5wmuO9Z3h_Nq4aEPfzGqrJzhthb Links: Selenium: http://docs.seleniumhq.org/download/ Cucumber Jars: http://central.maven.org/maven2/info/cukes/ JUnit Jar: http://mvnrepository.com/artifact/junit/junit/4.11 Hamcrest Jar: http://mvnrepository.com/artifact/org.hamcrest/hamcrest-all/1.3 Cucumber Plugin: http://cucumber.github.com/cucumber-eclipse/update-site JARS: Cucumber Core: http://repo1.maven.org/maven2/info/cukes/cucumber-core/ Cucumber Html: http://repo1.maven.org/maven2/info/cukes/cucumber-html/ Cucumber Java: http://repo1.maven.org/maven2/info/cukes/cucumber-java/ Cucumber JUnit: http://repo1.maven.org/maven2/info/cukes/cucumber-junit/ Cucumber JVM DEPS: http://repo1.maven.org/maven2/info/cukes/cucumber-jvm-deps/ Cucumber Spring: http://repo1.maven.org/maven2/info/cukes/cucumber-spring/ Gherkin: http://repo1.maven.org/maven2/info/cukes/gherkin/ JUnit: http://mvnrepository.com/artifact/junit/junit Hamcrest All: http://mvnrepository.com/artifact/org.hamcrest/hamcrest-all Selenium Server Standalone: http://www.seleniumhq.org/download/ Resources: Introductory music: http://incompetech.com/music/royalty-free/index.html?collection=006&Search=Search
Views: 183724 QAShahin
Frege, a Haskell for the JVM by Dierk König
 
01:00:13
Between the many options for functional programming on the JVM, Frege is the only one that is pure. It follows the syntax and behavior of Haskell with super-strong type safety, Hindley-Milner type inference, higher-rank types, typeclasses, lazy evaluation per default, and announcing all effects in the type system. Frege is also unique in the way that it interoperates with Java: it does not compromise its language guarantees in terms of purity and type safety when calling into Java! Come and see how you can achieve pure functional programming on the JVM.
Views: 7549 Devoxx
Virtualizing and Tuning Large Scale Java Platforms
 
01:33:44
Recorded at SpringOne2GX 2013 in Stana Clara, CA Speakers: Emad Benjamin and Guillermo Tantachuco The session will cover various GC tuning techniques, in particular focus on tuning large scale JVM deployments. Come to this session to learn about GC tuning recipe that can give you the best configuration for latency sensitive applications. While predominantly most enterprise class Java workloads can fit into a scaled-out set of JVM instances of less than 4GB JVM heap, there are workloads in the in memory database space that require fairly large JVMs. In this session we take a deep dive into the issues and the optimal tuning configurations for tuning large JVMs in the range of 4GB to 128GB. In this session the GC tuning recipe shared is a refinement from 15 years of GC engagements and an adaptation in recent years for tuning some of the largest JVMs in the industry using plain HotSpot and CMS GC policy. You should be able to walk away with the ability to commence a decent GC tuning exercise on your own. The session does summarize the techniques and the necessary JVM options needed to accomplish this task. Naturally when tuning large scale JVM platforms, the underlying hardware tuning cannot be ignored, hence the session will take detour from the traditional GC tuning talks out there and dive into how you optimally size a platform for enhanced memory consumption. Lastly, the session will also cover Pivotal App Fabric reference architecture where a comprehensive performance study was done. Learn more about
Views: 2987 SpringDeveloper
How to Run Cucumber Test as Maven Test
 
09:07
In this video we will discuss How to Run Cucumber Test as Maven Test and generate default reports as well. -~-~~-~~~-~~-~- Please watch: "How To Automate Rest Api Using Rest Assured | How to Automate API Testing using Java" https://www.youtube.com/watch?v=aqrxDxumKZQ -~-~~-~~~-~~-~-
Views: 32171 Mukesh otwani
Tomcat and MoSKito
 
58:49
Monitoring your tomcat web-application in production with MoSKito. Get full control of threads, memory and execution time usage of the JVM and your code.
Views: 2353 Apache Tomcat
Core Java With OCJP/SCJP:JVM Architecture  Part- 5|| heap area || method area
 
41:11
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The Road to Serverless: Functions as Applications - Dave Syer @ Spring I/O 2017
 
55:02
Spring I/O 2017 - 18 -19 May, Barcelona Slides: http://presos.dsyer.com/decks/road-to-serverless.html GitHub repo: https://github.com/dsyer/spring-cloud-function Spring Cloud Function provides a new programming model for Spring Boot applications, abstracting away all of the transport details and infrastructure, allowing the developer to keep all the familiar tools and processes, and focus firmly on business logic. Join this presentation to learn about the features of this new project, and why it is going to change the way that you build applications.
Views: 2180 Spring I/O
Verifying Microservice Integrations with Contract Testing - Atlassian Summit 2016
 
41:55
Ben Sayers Senior Developer, Atlassian Mauri Edo QA Engineer, Atlassian As you migrate your applications toward microservice architectures, new pains start to appear – like testing, for example. How on Earth do you verify all these separate moving parts work together before releasing? How can you be sure that your code is compatible with services that can't easily be spun up anymore? They are all written in different languages, operated by separate teams and deploy every day! Do you find yourself lying awake at night missing monolithic applications where integrations were easier to test? In this talk we'll reveal how Atlassian is adopting a new strategy called "contract testing", using the Pact open source library to test our microservices. We’ll introduce the concept of contract testing, talk about why we love this approach, and go through some examples and patterns that will help you get started.
Views: 28725 Atlassian
Refactor your Java EE application using Microservices and Containers by Arun Gupta
 
02:26:19
Subscribe to Devoxx on YouTube @ https://bit.ly/devoxx-youtube Like Devoxx on Facebook @ https://www.facebook.com/devoxxcom Follow Devoxx on Twitter @ https://twitter.com/devoxx Microservices allow to decompose a monolithic application into cohesive and multiple decoupled services. Each service is running in its own process and communicate using lightweight mechanisms, such as HTTP API. These services are built around business capabilities or functional decomposition. Microservice also enables true polyglot architecture – both in terms of language and data. It truly allows you to employ the right tool for the right job. Each service is independently deployable and lends very well to fully automated deployment machinery. Can you take an existing Java EE application and decompose it into microservices? What tools are required to enable CI/CD? How does it enable polyglot? What are different design patterns for microservices? What options are available for Service Discovery, distributed logging, load balancing? What tools do you need to manage such services? Is the complexity being pushed around from service implementation to orchestration? This session will explain how to refactor an existing monolith into microservices and the complexities and benefits it introduces.
Views: 56213 Devoxx
VERBOSE JAVA COMMAND VIEW CLASSES LOADED INTO JVM DEMO
 
02:14
VERBOSE JAVA COMMAND VIEW CLASSES LOADED INTO JVM DEMO InterviewDot - Tutorial http://www.InterviewDot.com http://www.InterviewDot.com http://www.InterviewDot.com FRESHERS core JAVA INTERVIEW QUESTION AND ANSWER EXPERIENCED core JAVA INTERVIEW QUESTION AND ANSWER SPRING FRAMEWORK INTERVIEW QUESTION AND ANSWER HIBERNATE INTERVIEW QUESTION AND ANSWER DESIGN PATTERNS INTERVIEW QUESTION AND ANSWER JQUERY INTERVIEW QUESTION AND ANSWER AJAX INTERVIEW QUESTION AND ANSWER SQL INTERVIEW QUESTION AND ANSWER JUNIT INTERVIEW QUESTION AND ANSWER SOFTWARE ARCHITECTURE INTERVIEW QUESTION AND ANSWER CODE REFACTORING INTERVIEW QUESTION AND ANSWER PERFORMANCE TUNING INTERVIEW QUESTION AND ANSWER JAVA VIRTUAL MACHINE INTERVIEW QUESTION AND ANSWER JQUERY TUTORIAL HIBERNATE TUTORIAL VERBOSE JAVA COMMAND VIEW CLASSES LOADED INTO JVM DEMO
Views: 270 Interview Dot
Embedding JVM Scripting Languages
 
35:46
This session focuses on embedding JVM scripting languages in Java applications. Groovy, JRuby, JavaScript...there are plenty of options to choose from. How do you go about choosing one when you have to deal with scripting in your next Java project. The different JVM scripting languages have different features, and the presentation analyzes the cases for and against, depending on the area of the application. It also assesses the different options for embedding the scripting engines into the runtime even though the options are fairly limited: you can use either JSR 223 interfaces or direct integration—each has its own strengths and pitfalls. You will learn how to integrate scripting into a Java application and what the benefits of this approach are. Author: Anton Arhipov JRebel (@jrebel) product junkie @ ZeroTurnaround, vim fan and IntelliJ addict http://linkd.in/aarhipov View more trainings by Anton Arhipov at https://www.parleys.com/author/anton-arhipov Find more related tutorials at https://www.parleys.com/category/developer-training-tutorials
Views: 231 Oracle Developers
A lite Rx API for the JVM
 
01:02:24
Recorded at SpringOne Platform 2016. Speakers: Sebastien Deleuze, Stephane Maldini Slides: http://www.slideshare.net/SpringCentral/a-lite-rx-api-for-the-jvm RxJava is a fully fledged and widely used solution to develop Reactive applications, but some interesting alternatives exist. After an overview of the main Reactive APIs available and of Spring Boot Reactive support, this workshop introduces how to develop Reactive applications using Reactor Core 2.5-a powerful and fast alternative. We will learn how to use Flux (N values) and Mono (single value) types with various exercises. This new API (which is the core of Reactor 2.5) is a game changer in the world of Reactive API on the JVM thanks to its Reactive eXtensions-based API (natively based on Reactive Streams and Java 8) and its unmatched performance.
Views: 2230 SpringDeveloper
Fearless JVM Lambdas - John Chapin
 
45:33
The modern Java Virtual Machine (JVM) is the culmination of millions of hours of expert engineering, but is often derided as being a poor fit for the ephemeral world of Serverless applications. The truth of the matter is that the JVM is an excellent choice of runtime for a wide range of AWS Lambda use cases, and developers need not even constrain themselves to just the Java language to use it. This talk gives an overview of the JVM runtime for AWS Lambda, as well as a comprehensive look at JVM-based Lambda performance across a range of use cases. He outlines a set of criteria to help architects and engineers decide whether or not to choose the JVM over the other runtime options. He also gives strategies, tips, and examples for developing efficient, performant AWS Lambda functions in a variety of JVM languages, but with a particular focus on Clojure. John Chapin is a co-founder of Symphonia, a Serverless and Cloud Technology Consultancy. John has over 15 years of experience in technology leadership and implementation. Previously, he was VP Engineering, Core Services & Data Science at Intent Media, where he helped teams transform how they delivered business value through Serverless technology and agile practices. He is also a co-organizer of the NYC Clojure Meetup.
Views: 2746 ClojureTV
Effective and Clean Java Code? Tips and Tricks from the Real World
 
51:55
Recorded at Jfokus 2017 Abstract https://www.jfokus.se/jfokus/talks.jsp#EffectiveandCleanJav Speaker Edson Yanaga, Red Hat
Views: 12107 Jfokus
Cucumber Jvm: custom listener
 
11:52
Here I consider extension of basic Cucumber Jvm functionality by implementing own junit listener
Rest API Testing using Jmeter || How to call Rest WebServices in Jmeter
 
49:27
How to call Rest WebServices in Jmeter: Learn: How to setup Jmeter How to configure Rest Calls How to call GET/POST/PUT/DELETE API calls ~~For Full Rest WebServices API Testing Web Series. Please refer this: https://vimeo.com/ondemand/webservicesapiautomation/ ~~~~Subscribe to this channel, and press bell icon to get some interesting videos on Selenium and Automation: https://www.youtube.com/c/Naveen%20AutomationLabs?sub_confirmation=1 Follow me on my Facebook Page: https://www.facebook.com/groups/naveenqtpexpert/ Let's join our Automation community for some amazing knowledge sharing and group discussion: https://t.me/joinchat/COJqZQ4enmEt4JACKLNLUg
Views: 10985 Naveen AutomationLabs
Devoxx Poland 2016 - Louis Jacomet - Ehcache out of his Element
 
30:27
Ehcache 3 offers major API changes. Apart from the JSR-107 compatibility, everything has been updated to make it a library convenient to use while offering advanced configuration options. And one of the major changes is the removal of the Element! Starting from JSR-107 support in well-known frameworks like Spring, we will show how easy it is to integrate Ehcache 3 in your application. From there, simply through configuration, you will see how to leverage the additional features that Ehcache brings. It will allow us to demonstrate the patterns used in Ehcache 3 to simplify it. And to finish, we will look at the mandatory XML which allows to break all compile time dependency on Ehcache 3 in a JSR-107 context while leveraging the extra features.
Views: 2994 Devoxx Poland
How to Host/Upload/Deploy a WAR File Java Web Application - Plesk Server Panel
 
06:38
Previous Video Link : https://www.youtube.com/watch?v=BkfRPtNQPek FB : https://www.facebook.com/RevolutionTech.co.in The Apache Tomcat feature is now deprecated and is only available in Plesk Onyx 17.5 and earlier. Note: Developer Pack is for provided for FREE in “Web Pro” and “Web Host” license editions. It’s PAID in “Web Admin” edition. Click on Web Applications which falls under Application & Services. Here, it will show 3 options. ... Click on Install Java Application to upload the .war file. ... Browse the .war file from your local machine and upload.
Views: 515 Revolution Tech
JavaDay Lviv 2016: An Introduction to JVM Performance (Rafael Winterhalter)
 
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An Introduction to JVM Performance Rafael Winterhalter Software engineer @Scienta AS JavaDay Lviv (http://javaday.org.ua) - the community-driven conference for Java developers. Stay geeky!
Views: 1086 Devoxx Ukraine
Java Memory Model in 10 minutes
 
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Java Memory Model is a set of rules all JVMs have to follow to ensure correct working of our concurrent programs. More resources: https://2016.javazone.no/program/the-java-memory-model-made-easy https://shipilev.net/blog/2014/safe-public-construction/ https://www.cs.umd.edu/~pugh/java/memoryModel/jsr-133-faq.html https://docs.oracle.com/javase/specs/jls/se7/html/jls-17.html#jls-17.4 Channel ---------------------------------- Master difficult programming concepts in few minutes. I try to explain difficult concepts like Java concurrency in simple to understand manner using animations and small code snippets. Explore videos on topics like Spring Boot, Cloud Foundry, Java 8 (with more coming soon). I am happy to clarify your doubts. Ask me anything in the comments. I am also happy to take requests for new videos. New video added every Sunday. Subscribe or explore the channel - http://bit.ly/defog_tech Playlists ---------------------------------- Java Executor Service - http://bit.ly/exec_srvc Java Concurrency - http://bit.ly/java_crncy Spring Boot 2.0 - http://bit.ly/spr_boot2 Java 8 - http://bit.ly/java_8-11 Intellij IDEA Shortcuts - http://bit.ly/i_idea Popular Videos ---------------------------------- Executor Service - https://youtu.be/6Oo-9Can3H8 Introduction to CompletableFuture - https://youtu.be/ImtZgX1nmr8 Understand how ForkJoinPool works - https://youtu.be/5wgZYyvIVJk Java Memory Model in 10 minutes - https://youtu.be/Z4hMFBvCDV4 Volatile vs Atomic - https://youtu.be/WH5UvQJizH0 What is Spring Webflux - https://youtu.be/M3jNn3HMeWg
Views: 14359 Defog Tech
JDK 9 Pitfalls For The Unwary (S. Ritter)
 
41:27
The major change in JDK 9 is the Java Platform Module System (also known as project Jigsaw). With the encapsulation of internal APIs such as sun.misc.Unsafe migrating applications to JDK 9 will potentially require more work than moving between releases previously. In this session, we’ll look at all the areas of JDK 9 that may impact application migration. This will cover all aspects: Java language syntax, class libraries and JVM options (a significant number of which have changed in JDK 9). Unlike previous Java releases, several features, which were in JDK 8, have been removed. These will also be discussed in terms of backward compatibility. We’ll also look at the new release cadence for the JDK and explain how this affects support for Java, which will affect choices of which Java versions to use in production.
Views: 300 Devoxx FR
What is Jar file? | How to make a Jar in Eclipse?
 
10:54
In this video we will see : - what is Jar and how to create Jar in Eclipse - an example of Jar file creation in Eclipse - Jar file creation - import Jar file - export Jar file - runnable Jar file - making changes to Jar file - sharing Jar files and options to share Jar file Jar is Java Archive and it is a package file in Java. If you are working on multiple projects and there is one feature which is common or used in all projects then you can use a Jar file. For that you need to create a Jar file and import the Jar file. You can import jar file in any project. You can also use runnable jar file. You can also make changes to a Jar file. You can share Jar file through various platforms You can also make changes to jar file Check out our website: http://www.telusko.com Follow Telusko on Twitter: https://twitter.com/navinreddy20 Follow on Facebook: Telusko : https://www.facebook.com/teluskolearnings Navin Reddy : https://www.facebook.com/navintelusko Follow Navin Reddy on Instagram: https://www.instagram.com/navinreddy20 Subscribe to our other channel: Navin Reddy : https://www.youtube.com/channel/UCxmkk8bMSOF-UBF43z-pdGQ?sub_confirmation=1 Telusko Hindi : https://www.youtube.com/channel/UCitzw4ROeTVGRRLnCPws-cw?sub_confirmation=1
Views: 27902 Telusko
Security and Microservices by Sam Newman
 
01:00:49
Microservices are all the range, and so are security breaches! Learn what you can do to try and have one without the other. Microservices give us many options. We can pick different technologies, mix synchronous and asynchronous integration techniques or embrace different deployment patterns. But they also give us different options in how we think about securing our systems. Done right, and microservices can increase the security of your vital data and processes. Done wrong, and you can increase the surface area of attack. This talk will discuss the importance of defence in depth, discussing the many different ways in which you can secure your fine-grained, distributed architectures. The audience should come away with a working framework for thinking about AppSec, and also understand how microservices can help (or hinder) building a secure system. Sam Newman After working at ThoughtWorks for over a decade, I've now joined a startup who are looking at making the process of building software much easier. I wrote "Building Microservices", which was published by O'Reilly at the beginning of 2015. Blog: http://samnewman.io/ [RBY-6694]
Views: 11100 Devoxx

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