How to Compile Eclipse-based Java Projects from the Command Line?

Build Eclipse Java Projects from the Command Line

The ability to compile Eclipse-based Java projects from the command line can streamline automated builds and eliminate the need to rely on external tools like Ant. Here's how to accomplish this task:

Using the Equinox Launcher (Eclipse Mars and Later)

1. Open your terminal window.
2. Navigate to the Eclipse installation directory.
3. Run the following command:

java -jar plugins/org.eclipse.equinox.launcher_*.jar -noSplash -data "workspace" -application org.eclipse.jdt.apt.core.aptBuild

Replace the version number (*) with the actual version of the Equinox launcher installed with your Eclipse version.

Using startup.jar (Eclipse Pre-Mars)

1. Open your terminal window.
2. Navigate to the Eclipse installation directory.
3. Run the following command:

java -cp startup.jar -noSplash -data "workspace" -application org.eclipse.jdt.apt.core.aptBuild

Tips:

• The -data parameter specifies the location of your workspace.
• The -noSplash parameter disables the splash screen during compilation.
• For Windows users, replace java with java.exe in the commands.

Additional Resources:

• [Eclipse Equinox Launcher Wiki](https://wiki.eclipse.org/Equinox_Launcher)
• [Eclipse Startup.jar Documentation](https://dev.eclipse.org/core-resources/resources-home/user-guide.html#eclipse.userguide-startup-main)

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