Please see 5 Steps to Install Eclipse.Įclipse 4.20 ( 2021-06) was released on June 16, 2021.Ī Java 11 or newer JRE/JDK is required, LTS release are preferred to run all Eclipse 2021-06 packages based on Eclipse 4.20, with certain packages choosing to provide one by default. The Installer now also includes a JRE-consider using the Installer. It is the supported release.Ī Java 11 or newer JRE/JDK is required, LTS release are preferred to run all Eclipse 2021-09 packages based on Eclipse 4.21, with certain packages choosing to provide one by default. GCJ (if you're somehow still using it) will NOT work.Įclipse 4.21 ( 2021-09) was released on September 15, 2021.If you install just a JRE, and not a full JDK, that error message will persist. Installing that will not solve the problem, because recent versions of Eclipse require a higher version. If you're using Mac, and you don't have a JDK installed, you may get a bogus message from the OS stating that you should "install the legacy Java SE 6 runtime".If you're using Windows, you may already have a JRE installed, but upgrading usually won't hurt.If you aren't planning to use Eclipse for Java development and want to save some disk space, install a JRE. If you intend to use Eclipse for Java development, then you should install a JDK. You may either install a Java Runtime Environment (JRE), or a Java Development Kit (JDK), depending on what you want to do with Eclipse. Regardless of your operating system, you will need to install some Java virtual machine (JVM).
In all cases, Eclipse requires a 64-bit JVMĪ Java Development Kit (JDK) includes many useful extras for Java developers including the source code for the standard Java libraries.
If you are using Eclipse to do Java development, or are on macOS, install a JDK. Current releases of Eclipse require Java 11 JRE/JDK or newer.
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