Today I faced an issue on Jenkins. I needed to fix jenkins job, which is getting info about sonar metrics, and received an error in job console
It was weird for me, because I was getting success jobs, everything went right, but as soon as I failed one job due to bad configuration - hell started, and I couldn’t understand why there my job is failing all the time.So I began experiments.
After several tries I managed to add prefix clean phase and everything worked.
Another problem was that I was building this job with different parameters and depending on specific parameter I was receiving specific console output.But then I understood that the problem was that I had constant artifacts, that were not cleaned. And I was receiving different output because this parameter was a version of plugin , so that’s why I received different output.
It’s been a long time since gradle become so popular framework.Year ago I tried to build one project using gradle with my coworkers, but as for me, I didn’t understand all the upsides and downsides of this framework. So, today I dedicated one day for investigating this framework and I would like to make some review of it. The author of this beatiful framework is Hans Dockter Gradle is a dynamic build tool. That’s mean, that you can use this build tool not only for java, but for any language, that can provide plugin for itselft. Gradle is a live project. I mean, Gradle is one of the biggest open source projects in the world, there is 1.5 million builds using gradle every day. ##Agenda Gradle setup Short introduction to Gradle Build Single Module Project setup ####Gradle setup If we are using Windows or Linux or OS X, we can install Gradle by following steps: Download the binaries from the downloads page. Unpack the zip file and add the GRADLE_HOME/bin directory to the PATH environment variable. On linux or OS X, just do following: Open your terminal Type nano .bashrc And modify this file as in example below Then restart...
While tunnning your Spring application with Basic Authentication security you can notice that you are receiving Basic Aithentication window in your browser.
The problem is with BasicAuthenticationEntryPoint that sends header
WWW-Authenticate: Basic realm="nmrs_m7VKmomQ2YM3:"
So, if you don’t want to receive this window in your browser, just create Custom Entry Point:
###ivanursul.elance.com On this page I put projects, where I was involved.Some of the projects were just backend web services, some were full stack applications.Anyway, if you are interested in hiring me as a frelance developer, you should learn about this projects: ###Online Booking system for restaurants #####www.egogso.com To be honest, this was my first project, where I was as a developer.I remember, that I was just a junior java developer with some contradictory skills. The real issue was with my team - actually, nobody could review me, because I didn’t have senior developers on the project.So, it was a risky project for me. Anyway, I finished him. Later, I switched to another company, so I don’t much about this project for now. I use: Java 1.7 Spring 3.0 Hibernate(Can’t remember version) Twitter bootstrap Backbone.js Digital Ocean as a cloud server ###Accountant system. #####as.egogso.se This was my second project, on which I worked as a backend developer.This was a project, where I started to use unit tests, database migrations, maven multi-module structure, and so on.This also was a project, where I realized why I should use JSR and specifications I use: Spring 4.0 JPA(Hibernate) Maven 3 Jenkins PostgreSQL Liquibase ###Simple Save...
It’s been a long period since Java 8 was introduced.New Java comes with a lot of new features. One of these features is the complete removal of the Permanent Generation (PermGen) space which has been announced by Oracle since the release of JDK 7. Interned strings, for example, have already been removed from the PermGen space since JDK 7. The JDK 8 release finalizes its decommissioning. This article will share the information that I found so far on the PermGen successor: Metaspace. The final specifications, tuning flags and documentation around Metaspace should be available on Java 8 official documentation. Metaspace The JDK 8 HotSpot JVM is now using native memory for the representation of class metadata and is called Metaspace; similar to the Oracle JRockit and IBM JVM’s. The good news is that it means no more java.lang.OutOfMemoryError: PermGen space problems and no need for you to tune and monitor this memory space anymore…not so fast. Instead of java.lang.OutOfMemoryError: PermGen you are now able to receive java.lang.OutOfMemoryError: Metadata space .While this change is invisible by default, we will show you next that you will still need to worry about the class metadata memory footprint. Please also keep in mind that...
