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Update the AndroidManifest Version Number automatically


Recently I needed to automate the update of the versionName element in the AndroidManifest.xml file. This needed to be timed stamped and updated with the correct version number when a build was run. We use maven as part of the build, a few plugins come in handy. We want to use POM’s version number so that tools like the maven-release-plugin ...

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Creating beautiful release notes with git, gradle and markdown


During the last days I asked myself how to generated releases notes from information that are available in commit  / tag messages from git. The decisions My first approach was to create the list of changes directly from the commit messages, but this approach has multiple drawbacks.         The commit messages must be written very disciplined An ...

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SpringMVC4 + Spring Data JPA + SpringSecurity configuration using JavaConfig


In this article we will see how to configure and integrate SpringMVC4, Spring Data JPA with Hibernate and SpringSecurity using JavaConfig. 1. First let’s configure all the necessary dependencies in pom.xml                 <project xmlns="" xmlns:xsi="" xsi:schemaLocation=""> <modelVersion>4.0.0</modelVersion> <groupId>com.sivalabs</groupId> <artifactId>spring-javaconfig</artifactId> <version>1.0</version> <packaging>war</packaging> <name>SpringApp JavaConfig Demo</name> <properties> <java.version>1.7</java.version> <junit.version>4.11</junit.version> <slf4j.version>1.7.5</slf4j.version> <logback.version>1.0.13</logback.version> <spring.version>4.0.0.RELEASE</spring.version> <spring-data-jpa.version>1.4.1.RELEASE</spring-data-jpa.version> <spring-security.version>3.2.0.RELEASE</spring-security.version> ...

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8 new features for Java 8


NOTE: Make sure to also check our detailed tutorial Java 8 Features – The ULTIMATE Guide. Jdk 1.8 aka, Java 8 is launched today meaning that the General Availability release of it is out in the open and developers can switch from Early Release releases to a tested release for production use. But what does it means for you, the ...

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The Optional Type API


Java 8 introduces the Optional class. In a nutshell, instead of returning null, and then checking for null, you return an Optional instance, which can either have or not have a value set. That way you don’t fail with NullPointerException. I won’t discuss whether the Optional type will eliminate NPEs completely (it won’t). Instead I’ll discuss things from a different ...

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5 Features In Java 8 That WILL Change How You Code


Java 8 is packed full of some really exciting features at both the JVM and language level. While some of the features initially envisioned for this release got scoped out or pushed out to release 9, there are literally dozens of new features. Many of the new additions are under-the-hood improvements either at the compiler, JVM or help-system level. As ...

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Happy 8th Birthday Java!


It’s been another longer journey but yesterday, exactly two years, seven months, and eighteen days after the release of Java 7 we now have production-ready builds of Java 8 available for download! This new major release contains several new features and enhancements that increase the performance of existing applications, make it easier to develop applications for modern platforms, and increase maintainability ...

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Akka Toolkit 2.3 released


The release of 2.3.0 version of Akka toolkit was recently announced. Akka is a very useful toolkit and runtime for building highly concurrent, distributed, and fault tolerant event-driven applications on the JVM. It is distributed and provides high-level abstractions like Actors, Futures and STM. Its new release comes eight months after the 2.2.0 release and brings along new features. One ...

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Android App tutorial:Peg board game


I released in Github the source code of an app that can be used to play peg board. This app was published on the market some times ago and this is a new version. The app screenshots are shown below:                   There are some interesting aspects we can consider in this app ...

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