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5 open source tools for Java developers

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Java development open source tools

From the early era of Java, developers have been outsourcing some third-party tools to enhance their offerings. But one thing that has just emerged in the world of Java development and has brought a new evolution is the availability of open source tools. The presence of open source makes programming easy and provides an out of the box ability to let young Java developers modify the apparatus by their own. The tools with open source support can be expanded with new plugins and extensions. And most importantly, they can be reached through a variety of operating systems. We are here covering top five open source tools that you as a Java developer can use to create new experiences on your existing or new developments.

Eclipse

Eclipse is perhaps the most used integrated development environment (IDE) for developing Java applications. No matter whether you want to develop some apps for Android or write some programs for software like Mathematica, Eclipse is an integrated solution for you. It has a large number of plugins. Additionally, it recently debuted within Microsoft’s Visual Studio to ease your development.

Eclipse

Eclipse

The latest version of Eclipse — called Eclipse Che — comes with Cloud IDE to let you access your programs remotely. It also has an option to work as a collaborative workspace server.

Eclipse SDK is available as a free and open source (FOSS) software. It is not compatible with the original GNU General Public License. However, it uses GNU Classpath and can run under IcedTea project.

Chef

Chef is a Ruby-based configuration management tool that offers you an easy way to configure your development or production environment right on your premise. You can also integrate tasks into cloud-based platforms such as Amazon EC2, Google Cloud Platform, OpenStack or Microsoft Azure.

Chef

Chef

Scripts written by Chef are known as recipes and their groups are being called cookbooks. The tool uses Ruby as the base of its scripts to provide you a generic scripting language for enabling automated infrastructure activities. Additionally, it has Erlang support on the server side.

Chef was initially designed for Linux, but its newer versions are fully compatible with Windows devices as well. It features a command-line interface (CLI) and comes with a client/server architecture.

JUnit

JUnit is a unit testing framework for Java developments. It allows you to write and run unit tests that help in examining class, method and functionality of your codes.

JUnit

JUnit

Cross-platform JUnit is based on xUnit architecture. You can access its code directly from GitHub to modify its usage.

There are some specific annotations that JUnit uses to run your unit tests. For instance, you have to use @Test to test methods and @Before or @After to define a particular method for execution before or after each of your test methods.

Mockito

Mockito is a mock testing framework for Java. It lets you verify the behaviour of the system under test (SUT) without any prior expectations and enables the creation, verification and stubbing of mocks.

Mockito

Mockito

Abilities such as readable tests and verification errors make Mockito one of the most popular testing tool. It has its presence on GitHub to enable modifications in its source code.

Flyway

Flyway works as an open source database migration tool. It has a command-line client as well as a Java API, Maven, Gradle and SBT plugins and Ant tasks.

Flyway

Flyway

Databases that are supported through Boxfuse-developed Flyway include Oracle, SQL Server, SQL Azure, MySQL, MariaDB, Google Cloud SQL, Sybase ASE and Phoenix among others.

While Flyway traditionally uses SQL for migrating data, you can also enable a specific Java code to shift your database using JDBC API. The tool is also capable of handling your database creation or migration on the very first run of your application.

So these were the five open source tools that will help you develop some interesting Java applications. These are available for free download and can be modified by simply using the source code.