Compiling using ​IntelliJ IDEA

This describes how to develop and compile JOSM using ​IntelliJ IDEA.

Requirements

• JOSM's Source code
• IntelliJ itself ​https://www.jetbrains.com/idea/
• IvyIDEA plugin ​https://plugins.jetbrains.com/plugin/3612-ivyidea
• Note: Running with coverage requires an out-of-tree patch. See #22615.

Guide

• Add project from existing source
  • If it doesn't work or stalling: press Ctrl+Shift+A and type in the search box project from existing sources. It will give you all the configuration option, as in earlier IntelliJ versions (≤2019.3). See IntelliJ ​documentation for more info.
• Project Settings / Project:
  
• Project Settings / Modules:
  
• Project Settings / Modules: add+configure IvyIDEA
  
• Tools / Ivy / Resolve for All Modules:
  
• Configure Ant:
  
• Run the following Ant tasks:
  
• Run org.openstreetmap.josm.gui.MainApplication:
  

Additional settings

This section describes helpful additional settings for IntelliJ IDEA.

Link ticket references in commit messages

Make ticket references in the code of the form ticket 1234 or #1234 clickable as a link to the Trac ticket.

1. Open the File | Settings | Version Control | Issue Navigation settings page.
   
2. Add a new Issue Navigation item, with:
   • Issue ID: (ticket\s*|#)(\d+)
   • Issue link: https://josm.openstreetmap.de/ticket/$2
     

Search open issues

→ Tools → Tasks & Contexts → Open Task