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1. JPA Mini Book

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Official Eclipse Support for Java(TM) 8

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Dani Megert, the project lead for the Java development tools (JDT) project made this announcement earlier today: The Eclipse top-level project is very proud to announce official support for Java™ 8. Starting with I20140318-0830 all Luna (4.4) builds contain the Eclipse support for Java™ 8. For Kepler SR2 (4.3.2) a feature patch is available. For future builds visit our downloads ...

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Go for Java Programmers: Packages, Functions, and Variables

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Go’s Familiar Syntax Due to their shared heritage in the C programming language, Go (aka Golang) code should be fairly recognizable to a Java developer.  Here is the canonical “Hello world” program, which you can execute and modify through your browser on the Go Playground site:           package main import "fmt" func main() { fmt.Println("Hello world") ...

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JavaSE: How to SET/GET your own Files and Directory Attributes

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In the previous article “Determining Views Supported by a Particular File System” and see how to ask the file system store, and see supportability of a particular file attribute view. We are going to explore in a nutshell, one of the most advanced and important files attribute views which is User-Defined File Attributes View. Particularly, I am using this feature ...

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Best way to learn Java programming? Meet the Java Code Geeks

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Java Code Geeks have grown over the years to become a full-fledged Java developers resource center and at the same time one of the most rapidly growing programming communities online. We currently feature a broad collection of Java material to cater to the needs of both the beginner and the seasoned veteran. For the junior developer that is now getting ...

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Update the AndroidManifest Version Number automatically

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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

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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

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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="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <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

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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

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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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