Developers Guide

This portal will explain how to create a patch, modify the core JOSM application or existing plugins.

At least basic Java programming skills are necessary. Please consult Portals how could you improve JOSM without Java skills.

Source code and JOSM builds

• Installing and Running JOSM
• Source code#Getthesource
• Source code#CompilingusingAnt
• Compiling JOSM using IDE
• How to create a JOSM build

Developer guidelines

• Development Guidelines (Coding style and Internationalization)
• Patch Guidelines (How to submit a patch)
• Track the state of development (Release Schedule)

Eclipse

• Various Eclipse tips
• ​Video: how to checkout JOSM into Eclipse
• ​Video: how to checkout a JOSM plugin into Eclipse

JOSM core

• JavaDoc class documentation (for JOSM and JMapViewer)
• JavaBugs - you may encounter one of them

JOSM plugins

• Develop Plugins
  • Plugin publication steps
• Plugin installation without restart

SVN

• How to use your JOSM SVN account

JOSM Help System

• Context-sensitive help
• Current list of context-sensitive help topics

Shortcuts

• Current list of used shortcuts

See also

• About JOSM#Contributors