Java sdk software development kit

Java sdk software development kit

The JDK is a development environment for building applications using the Java programming language.

The JDK includes tools useful for developing and testing programs written in the Java programming language and running on the Java TM platform.

Important Oracle JDK License Update

The Oracle JDK License has changed for releases starting April 16, 2019.

The new Oracle Technology Network License Agreement for Oracle Java SE is substantially different from prior Oracle JDK licenses. The new license permits certain uses, such as personal use and development use, at no cost — but other uses authorized under prior Oracle JDK licenses may no longer be available. Please review the terms carefully before downloading and using this product. An FAQ is available here.

Commercial license and support is available with a low cost Java SE Subscription.

Oracle also provides the latest OpenJDK release under the open source GPL License at jdk.java.net.

WARNING: These older versions of the JRE and JDK are provided to help developers debug issues in older systems. They are not updated with the latest security patches and are not recommended for use in production.

These Java SE 8 update releases are provided under the Java SE OTN License.
Java SE 8u202 and older updates are available, under the Binary Code License (“BCL”).

For production use Oracle recommends downloading the latest JDK and JRE versions and allowing auto-update.

Only developers and Enterprise administrators should download these releases.

Downloading these releases requires an oracle.com account. If you don’t have an oracle.com account you can use the links on the top of this page to learn more about it and register for one for free.

For current Java releases, please consult the Oracle Software Download page.

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Java Downloads

JDK 20 is the latest release of Java SE Platform and JDK 17 LTS is the latest long-term support release for the Java SE platform.

JDK Development Kit 20.0.2 downloads

JDK 20 binaries are free to use in production and free to redistribute, at no cost, under the Oracle No-Fee Terms and Conditions.

JDK 20 will receive updates under these terms, until September 2023 when it will be superseded by JDK 21.

Release information

JDK Development Kit 17.0.8 downloads

JDK 17 binaries are free to use in production and free to redistribute, at no cost, under the Oracle No-Fee Terms and Conditions.

JDK 17 will receive updates under these terms, until September 2024, a year after the release of the next LTS.

Release information

GraalVM for JDK 20.0.2 downloads

GraalVM for JDK 20 binaries are free to use in production and free to redistribute, at no cost, under the GraalVM Free Terms and Conditions.

GraalVM for JDK 20 will receive updates under these terms, until September 2023 when it will be superseded by GraalVM for JDK 21.

Oracle GraalVM uses the Graal just-in-time compiler and includes the Native Image feature as optional early adopter technology.

Native Image is extensively tested and supported for use in production, but is not a conformant implementation of the Java Platform. GraalVM for JDK 20 without the Native Image feature included is available for customers at My Oracle Support.

Release information

GraalVM for JDK 17.0.8 downloads

GraalVM for JDK 17 binaries are free to use in production and free to redistribute, at no cost, under the GraalVM Free Terms and Conditions.

GraalVM for JDK 17 will receive updates under these terms, until September 2024, a year after the release of the next LTS.

Oracle GraalVM uses the Graal just-in-time compiler and includes the Native Image feature as optional early adopter technology.

Native Image is extensively tested and supported for use in production, but is not a conformant implementation of the Java Platform. GraalVM for JDK 17 without the Native Image feature included is available for customers at My Oracle Support.

Release information

Script-friendly Download URLs

The URLs listed above will remain the same for update releases to allow their use in scripts.

Protect your investment—and more

Java SE subscribers get support for JDK 17, receive updates until at least October 2029, are entitled to GraalVM Enterprise, Java Management Service, and bundled patch releases (BPRs) with fixes not yet available to nonsubscribers, and more.

Java SE subscribers have more choices

Also available for development, personal use, and to run other licensed Oracle products.

Java SE Development Kit 8u381

Java SE subscribers will receive JDK 8 updates until at least December 2030.

The Oracle JDK 8 license changed in April 2019

The Oracle Technology Network License Agreement for Oracle Java SE is substantially different from prior Oracle JDK 8 licenses. This license permits certain uses, such as personal use and development use, at no cost — but other uses authorized under prior Oracle JDK licenses may no longer be available. Please review the terms carefully before downloading and using this product. FAQs are available here.

Commercial license and support are available for a low cost with Java SE Universal Subscription.

Java SE 8u381 checksums and OL 8 GPG Keys for RPMs

JRE 8

Java SE Runtime Environment 8u381

Server JRE 8

Server JRE (Java SE Runtime Environment) 8u381

Which Java 8 package do I need?

Software developers: Java SE Development Kit (JDK) For Java developers. Includes a complete JRE plus tools for developing, debugging, and monitoring Java applications.

Running headless Linux workloads at or near your systems’ CPU or memory limits Enterprise Performance Pack brings significant memory and performance improvements including modern garbage collection algorithms, reduced memory usage and many other optimizations. Learn more

Administrators running applications on a server Server Java Runtime Environment (Server JRE). For deploying Java applications on servers. Includes tools for JVM monitoring and tools commonly required for server applications, but does not include browser integration (Java plug-in), auto-update, or an installer. Learn more

End user running Java on a desktop: Java Runtime Environment (JRE) Covers most end-users needs. Contains everything required to run Java applications on your system.

Release information

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SDKs

A Software Development Kit , or an SDK , is a collection of tools that you need to develop an application for a specific software framework. For example, to develop applications in Java, you need a Java SDK (JDK). SDKs contain binaries, source code for the binaries, and documentation for the source code. JDK builds also contain annotations.

Generally, SDKs are global. It means that one SDK can be used in multiple projects and modules. After you create a new project and define an SDK for it, you can configure modules in this project to inherit its SDK. You can also specify an SDK for each module individually. For more information, refer to Change module SDK.

Supported SDKs

Define an SDK

To define an SDK means to let IntelliJ IDEA know in which folder on your computer the necessary SDK version is installed. This folder is called an SDK home directory .

Configure global SDKs

1. From the main menu, select File | Project Structure | Platform Settings | SDKs .
2. To add an SDK, click , select the necessary SDK and specify its home directory in the dialog that opens. Only for JDKs: if you don’t have the necessary JDK on your computer, select Download JDK . In the next dialog, specify the JDK vendor, version, change the installation path if required, and click Download .

Set up a project SDK

1. From the main menu, select File | Project Structure | Project Settings | Project .
2. If the necessary SDK is already defined in IntelliJ IDEA, select it from the SDK list. If the SDK is installed on your computer, but not defined in the IDE, select Add SDK | ‘SDK name’ , and specify the path to the SDK home directory. Only for JDKs: If you don’t have the necessary JDK on your computer, select Add SDK | Download JDK . In the next dialog, specify the JDK vendor, version, change the installation path if required, and click Download .

Set up a module SDK

1. From the main menu, select File | Project Structure | Project Settings | Modules .
2. Select the module for which you want to set an SDK and click Dependencies .
3. If the necessary SDK is already defined in IntelliJ IDEA, select it from the Module SDK list. If the SDK is installed on your computer, but not defined in the IDE, select Add SDK | ‘SDK name’ , and specify the path to the SDK home directory. Only for JDKs: If you don’t have the necessary JDK on your computer, select Add SDK | Download JDK . In the next dialog, specify the JDK vendor, version, change the installation path if required, and click Download .

If you want a module to inherit a project SDK, select the Project SDK option from the Module SDK list.

Java Development Kit (JDK)

To develop applications in IntelliJ IDEA, you need a Java SDK (JDK). A JDK is a software package that contains libraries, tools for developing and testing Java applications (development tools), and tools for running applications on the Java platform (Java Runtime Environment — JRE).

The JRE can be obtained separately from the JDK, but it’s not suitable for application development, as it doesn’t have essential components such as compilers and debuggers.

• The bundled JRE is used for running the IDE itself, and it’s not sufficient for developing Java applications. Before you start developing in Java, download and install a standalone JDK build.
• Due to the changes in the Oracle Java License, you might not have the rights to use Oracle’s Java SE for free. We recommend that you use one of the OpenJDK builds to avoid potential compliance failures.

In IntelliJ IDEA, you can download a JDK package right from the IDE, or you can manually download the necessary JDK distribution and define it in the IDE.

For a manual download, use any available distribution that you like, for example:

If you don’t know which distribution to choose, and you don’t have specific requirements that instruct you to use one of the existing distributions, use Oracle OpenJDK.

Set up the project JDK

1. From the main menu, select File | Project Structure | Project Settings | Project .
2. If the necessary JDK is already defined in IntelliJ IDEA, select it from the SDK list. If the JDK is installed on your computer, but not defined in the IDE, select Add SDK | JDK , and specify the path to the JDK home directory (for example, /Library/Java/JavaVirtualMachines/jdk-12.0.1.jdk ). If you don’t have the necessary JDK on your computer, select Add SDK | Download JDK . In the next dialog, specify the JDK vendor, version, change the installation path if required, and click Download .
3. Apply the changes and close the dialog.

If you build your project with Maven or Gradle, refer to Change the JDK version in a Maven project and Gradle JVM selection respectively for more information on how to work with JDKs.

Configure SDK documentation

You can add SDK documentation to IntelliJ IDEA so that you can get information about symbols and method signatures right from the editor in the Quick Documentation popup.

You can also configure external documentation by specifying the path to the reference information online. External documentation opens the necessary information in a browser so that you can navigate to related symbols and keep the information for further reference at the same time.

Specify SDK documentation paths

To view external SDK documentation, configure the documentation URL first.

1. In the Project Structure dialog Ctrl+Alt+Shift+S , select SDKs .
2. Select the necessary SDK version if you have several SDKs configured, and open the Documentation Path tab on the right.
3. Click the icon, enter the external documentation URL, and click OK . For example, for Java 14, type https://docs.oracle.com/en/java/javase/14/docs/api/ .
4. Apply the changes and close the dialog.

Access SDK documentation offline

If you work offline, you can view external documentation locally.

1. Download the documentation package of the necessary version. The documentation package is normally distributed in a ZIP archive that you need to unpack once it is downloaded. For example, you can download the official Java SE Development Kit 14.0.1 Documentation and unzip it.
2. In the Project Structure dialog Ctrl+Alt+Shift+S , select SDKs .
3. Select the necessary JDK version if you have several JDKs configured, and open the Documentation Path tab on the right.
4. Click the icon and specify the directory with the downloaded documentation package (for example, C:\Users\jetbrains\Desktop\docs\api ).
5. Apply the changes and close the dialog.

When the documentation is configured, you can open it in the editor.

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