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.

User-level and source code topics

Not directly relevant to development:

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

Development process

• 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