Java Magazine, May/June 2018

magazine By and for the Java community MICROSERVICES and CONTAINERS 15 MARCH APRIL 2018 32 53 42 ORACLE COM JAVAMAGAZINE MAY JUNE 2018 07 letters to the editor Java Web Start In the March April issue of your magazine I stumbled on news of the upcoming absence of Java Web Start from Java 11 Those of us who have used Java Web Start for some time in my case 15 years or so to deploy application and configuration to company desktops are really going to miss this technology The only real alternative that exists is IcedTea and some of the community suggestions are patently absurd my favorite is that its time to rewrite those applications in a JavaScript HTML framework I hope Oracle open sources Java Web Start and some group picks it up and carries it forward Id certainly volunteer Chris Hermansen Editor Andrew Binstock responds I checked with the Java team and they have no plans at present to open source Java Web Start What Do Containers Contain In the March April issues introductory page to the Features section you wrote In many cases containers hold the entire application and all its dependencies in other cases only one service resides in the container This latter model termed microservices This is inaccurate Containers always hold an entire application and dependencies That is what Docker containers are designed for You may refer to Dockers own documentation In the section on containers it states Containers are an abstraction at the app layer that packages code and dependencies together Deepak Vohra Editor Andrew Binstock responds This question might be more of a terminological issue than anything else A single microservice can reside in a Docker container likewise so can entire apps and apps that depend on microservices running in other containers In fact decomposition of monoliths into microservices requires precisely the ability to run services rather than complete apps in their own containers Keys Rather Than Mice I read Java Magazine soon after it comes out One thing that I find somewhat annoying is having to use the mouse to click on the page forward button Many interfaces like this have keyboard shortcuts for such actions I didnt see any information about keyboard shortcuts for this interface Are there any David Karr Limited keyboard navigation is available in the issue hosted online The Enter key provides a zoom unzoom facility and the arrow keys allow pagination when the page is not zoomed Contact Us We welcome comments suggestions grumbles kudos article proposals and chocolate chip cookies All but the last two might be edited for publication If your note is private please indicate this in your message Please write to us at javamag_ us@ oracle com For other ways to reach us see the last page of this issue ORACLE COM JAVAMAGAZINE GROOVY 30 61 JVM ESCAPE ANALYSIS 73 REST API WITH SPRING 81 CREATING MICROSERVICES WITH MICROPROFILE AND DOCKER DEVOPS PIPELINES FOR CONTAINERS WOOKIEE MICROSERVICES WITHOUT THE CONFIG HASSLES MIXING JAVA MODULES AND OSGi MARCH APRIL 2018