Eclipse With Jdk 8

1. Overview

1. Download Jdk 8 For Windows
2. Use Eclipse Installer For Eclipse JEE 2019 And JDK 1.8 On Windows
3. Eclipse Oxygen Jdk 8

• The changes to the eclipse.ini must be made after the installation of e(fx)clipse, otherwise Eclipse will not start again. If OpenJDK 11 is the only JDK installed, nothing else needs to be changed. If OpenJDK 11 is not installed, but is only unpacked or other Java versions are installed on the computer, then the following lines should also be.
• Run Eclipse with a JDK. Maven requires Eclipse using a JDK, i.e. Java Development Kit, instead of a Java Runtime Environment (JRE). The main difference is that a JDK also contains a Java Compiler and other tools to develop Java Code, while the JRE is only able to run compiled Java applications.

I am using Eclipse for developing BlackBerry Applications. I have JDK/JRE 7 currently on my computer, but that makes the BlackBerry plugins crash. Actually is a known issue and the only thing need to be done is run Eclipse with JDK/JRE 6 instead of 7. I downloaded and installed version 6. However I am pretty sure Eclipse still uses 7. A Java 8 or newer JRE/JDK is required to run all Eclipse 2018-12 packages based on Eclipse 4.10, including running the Installer. The reasoning behind requiring Java 8 are discussed here. Eclipse 4.9 (2018-09) Eclipse 4.9 (2018-09) was released on September 19, 2018. In this introductory tutorial, we learn more about getting started with Java EE 8, Java 11, and Eclipse for Enterprise Java and Wildfly 16. Java 11 JDK from Oracle or any OpenJDK distro 2.

The Eclipse IDE is one of the most common tools for Java application development. It comes with default settings that enable us to build and execute our code right away within the IDE.

However, these default settings are sometimes not sufficient when we try to build using Maven in Eclipse. Consequently, we'll encounter build errors.

In this quick tutorial, we'll demonstrate the configuration changes we need to make so that we can build Maven-based Java projects within the IDE.

2. Java Compilation in Eclipse

Before we start, let's try to understand a little bit about the compilation process in Eclipse.

The Eclipse IDE comes bundled with its own Java compiler called Eclipse Compiler for Java (ECJ). This is an incremental compiler that can compile only the modified files instead of having to always compile the entire application.

This capability makes it possible for code changes that we make through the IDE to be compiled and checked for errors instantaneously as we type.

Due to the usage of Eclipse's internal Java compiler, we don't need to have a JDK installed in our system for Eclipse to work.

3. Compiling Maven Projects in Eclipse

The Maven build tool helps us to automate our software build process, and Eclipse comes bundled with Maven as a plugin. However, Maven doesn't come bundled with any Java compilers. Instead, it expects that we have the JDK installed.

To see what happens when we try to build a Maven project inside Eclipse, assuming that Eclipse has the default settings, let's open any Maven project in Eclipse.

Then, from the Package Explorer window, let's right-click on the project folder and then left-click on Run As > 3 Maven build:

This will trigger the Maven build process. As expected, we'll get a failure:

The error message indicates that Maven is unable to find the Java compiler, which comes only with a JDK and not with a JRE.

4. JDK Configuration in Eclipse

Let's now fix the Maven build issue in Eclipse.

First, we need to download the latest version of JDK and install it in our system.

After that, let's add the JDK as a runtime in Eclipse by navigating to Window > Preferences > Java > Installed JREs:

We can see that Eclipse already has Java configured. However, this is the JRE and not the JDK so let's proceed with the next steps.

Now, let's click on the Add… button to invoke the Add JRE wizard. This will ask us to select the type of JRE.

Here, we've selected the default option, Standard VM:

Clicking on Next will take us to the window where we'll specify the location of the JRE home as the home directory of our JDK installation.

Following this, the wizard will validate the path and fetch the other details:

We can now click on Finish to close the wizard.

This will bring us back to the Installed JREs window, where we can see our newly added JDK and select it as our runtime in Eclipse:

Let's click on Apply and Close to save our changes.

5. Testing the JDK Configuration

Let's now trigger the Maven build one more time, in the same way as before.

We can see that it's successful:

6. Conclusion

In this tutorial, we saw how we could configure Eclipse for Maven builds to work within the IDE.

Download Jdk 8 For Windows

By doing this one-time configuration, we're able to leverage the IDE itself for our builds without having to set up Maven externally.

Better Than Ever

The Eclipse IDE delivers what you need to rapidly innovate.

Experimental Edge browser support

Experimental support for Microsoft Edge browser on Windows is available

Latest Java^TM and JUnit^TM support

Supports Java 16 via Eclipse Marketplace and JUnit 5.7.1

Early access Mac ARM64 support

Use Eclipse Installer For Eclipse JEE 2019 And JDK 1.8 On Windows

SWT libraries for Mac ARM64 are available as early access builds

Improved Java development tooling

Parallel index search enabled for improved performance, many new cleanups, and quick assists added

Proven extensibility

A huge variety of platform plug-ins that will ease the addition of new functionality

Free and open source

Free and open source released under the terms of the Eclipse Public License 2.0

Code Meets Community

Eclipse Oxygen Jdk 8

Eclipse 2021-03 IDE Improvements

Next Release

The next Eclipse IDE release is coming in 2021-06

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