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Warning: The Checker Framework Eclipse Plugin is no longer supported and is out of date. Follow the Eclipse instructions in the Checker Framework manual.

The Checker Framework is a pluggable type-checking system for Java: It warns you, at compile time, about errors in your programs, beyond those that Java's built-in type-checker does. This document tells you how to get started using the Checker Framework in Eclipse. However, the Checker Framework Eclipse Plugin is no longer supported and is out of date. Therefore, you are highly recommended to follow the Eclipse instructions in the Checker Framework manual.

Requirements

This plugin has been tested on Oxygen.1a Release (4.7.2) using Java 8. Older versions running on a Java 8 VM can be used with the plugin. However, the Checker Framework Eclipse Plugin is no longer supported and is out of date. Therefore, you are highly recommended to follow the Eclipse instructions in the Checker Framework manual.

Instructions

  1. Open Eclipse and select from menus: Help ‑> Install New Software...
  2. Click Add.
  3. Enter the following:
    Name: Checker Framework
    Location: https://checkerframework.org/eclipse
    Click OK.
  4. Appearing under name should be "Pluggable Type-Checking", check the box next to it.
  5. Click Next.
  6. A summary of the plugins to be installed will be displayed. Under Name should appear "Checker Framework Feature" followed by the version of the plugin being installed. Click Next again.
  7. Accept the license agreement and click Finish.
  8. The plugin will begin installing. The plugin is NOT digitally signed. Install it anyway.
  9. Click "Restart Now".
Note: You may want to add checker-qual.jar to your classpath for each Eclipse project you wish to check. It provides the annotations used by the Checker Framework for its built-in type checkers.
To add the checker-qual.jar to your Eclipse project, download the jar from the above link. Then right click the project you wish to check and select Properties -> Java Build Path -> Libraries -> Add External Jars. Select checker-qual.jar from the directory in which it's saved.

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To get support for either the Checker Framework or this plugin please first consult the Checker Framework Manual, specifically the chapter "Troubleshooting and getting help" . If you find a bug, please report it at https://github.com/typetools/checker-framework/issues (first, check whether there is an existing bug report for that issue). You can also get help via the discussion group checker-framework-discuss.

To install and use the Checker Plugin, you do not need to access or compile the source code. However, if you would like to read or modify the source code, it is publicly available. The code for the Eclipse plugin can be found within the Checker Framework version control repository (https://github.com/typetools/checker-framework/ in the checker-framework/eclipse directory. To obtain your own copy of the source code, execute the following command:

git clone https://github.com/typetools/checker-framework.git