Supplemental information for JOSM -- the Java OpenStreetMap Editor

============================================================================= I. Install & Launch

Installation notes

To run JOSM, you need:

• The JOSM .jar file, e.g., josm-tested.jar or josm-latest.jar
• Java Runtime Environment (JRE) 8, or later.

How to get Java Runtime Environment

You need JRE Version 8, or later.

Microsoft Windows and Apple Mac OS X users should visit https://www.java.com and download the latest Java executable for their system.

Linux users should visit http://www.oracle.com/technetwork/java/index.html There is a Linux binary installer, which you must execute from a console, or use the mechanism of your distribution's packaging system.

How to launch

Microsoft Windows users launch by double-clicking on the .jar file. If this does not work, open a command shell and type "java -jar josm-latest.jar" in the directory that holds the file. (Please replace josm-latest.jar with the name of your .jar file, if you aren't using the latest version.)

Under Linux, open a shell, go to the file directory and type "java -jar josm-latest.jar" to launch. If this does not work, try to set your JAVA_HOME variable to the java executable location (the root location, not the bin).

macOS users just click on the .jar file icon.

============================================================================= II. Development

How to get the source code

Download it directly from the subversion at https://josm.openstreetmap.de/svn/trunk. To use the command line subversion client, type

svn co https://josm.openstreetmap.de/svn/trunk josm

Files & directories

This is an overview of the files and directories in the JOSM code repository:

• build.xml ant build file (standard way to create a JOSM binary)
• CONTRIBUTION list of major code contributors
• gpl-2.0.txt, gpl-3.0.txt full text of the GNU General Public License
• ide IDE-specific files
  • eclipse/ preconfigured Eclipse configuration files
  • netbeans/ preconfigured Netbeans project
• josm.jnlp Java Web Start launcher file (used on the website for the tested version)
• josm-latest.jnlp Java Web Start launcher file (used on the website for the latest version)
• LICENSE the JOSM license terms
• native/ OS-specific files
  • linux/ files useful for Linux distributions, including Appdata files, .desktop files, Debian/Ubuntu scripts, man pages, icons, etc.
  • macosx/ files needed to create the MacOS X package
  • windows/ files needed to create the Windows installer
• nodist/ files not included in JOSM binary
  • data/ data files that are useful for development, but not distributed
    • exif-direction-example.jpg sample image, that contains direction information in the EXIF header (keys: Exif.GPSInfo.GPSImgDirectionRef, Exif.GPSInfo.GPSImgDirection)
    • filterTests.osm used for unit testing of the filter feature (see test/unit/org/openstreetmap/josm/data/osm/FilterTest.java)
    • Join_Areas_Tests.osm some examples to test the 'join areas' feature
    • . various other data files used for unit testing and as reference file
    • projection/ projection files

      • *.gsb NTv2 grid files for projection support, downloaded by the client on demand (see CONTRIBUTION)

      • CHENyx06-Distribution.pdf archive of terms of use for the CHENyx06.gsb file

      • epsg EPSG data file, taken from the proj.4 project (see https://github.com/OSGeo/proj.4/blob/master/nad/epsg)

      • esri ESRI data file, taken from the proj.4 project (see https://github.com/OSGeo/proj.4/blob/master/nad/esri)

      • josm-epsg customizations to the epsg file, used together with the epsg file to generate data/projection/custom-epsg

      • projection-reference-data.csv reference data for projection tests (see test/unit/org/openstreetmap/josm/data/projection/ProjectionRefTest.java)

      • projection-regression-test-data.csv regression data for projection tests (see test/unit/org/openstreetmap/josm/data/projection/ProjectionRegressionTest.java)

    • trans/*.lang translation data for files that are not distributed, but used by the server for localization of the services; currently contains plugin descriptions in order to include translations in the downloaded plugin list
  • images/ images, which are not for distribution, but may be useful later (e.g. high resolution and vector versions)
  • styles/ files needed for map style maintenance
    • potlatch2/README infos on how to update the Potlatch 2 style from upstream sources
• README this file
• resources/ resource files that will be included in the JOSM jar file
  • data/ data files that will be included in the JOSM jar file
    • fonts/ font files used for map rendering
    • gpx/ different color gradients for gpx drawing
    • projection/ projection files
      • custom-epsg list of projection definitions, auto-generated file created by ant task 'epsg'
    • security/*.pem certificates that we like to accept for TLS connections, but are missing in the default Java certificate store
    • validator/ data files used by the JOSM validator
      • *.cfg files designed for the old tagchecker, still in use
      • *.mapcss default validation rules for the MapCSS-based tagchecker
    • boundaries.osm OSM file containing boundary data for the states of the earth, including data for right and left-hand traffic
    • defaultpresets.xml data file for the core tagging presets
    • help-browser.css CSS file for the help sites (HTML content is downloaded from the website on demand, but displayed inside the programm in a Java web browser component.)
    • *.lang translation data
    • *.xsd xml schema files for validation of configuration files
  • images/ images distributed with the JOSM binary
    • icons images for the Potlatch 2 style
    • presets images for the main mappaint style and the internal presets
  • styles/ map styles included in JOSM
• scripts/ various scripts used by JOSM developers
  • BuildProjectionDefinitions.java called from the ant build file to combine the files epsg and josm-epsg to create the custom-epsg file for distribution
  • geticons.pl tool to find all used icons and allows deleting unused icons searches also for images with incompatible svg code
  • optimize-images short script to decrease size of PNG images
  • since_xxx.py developer tool to replace "@since xxx" in Javadoc by the upcoming revision number
  • SyncEditorLayerIndex.java script to compare and analyse the differences of the editor layer index and the JOSM imagery list (see https://josm.openstreetmap.de/wiki/ImageryCompare)
  • TagInfoExtract.java extracts tag information for the taginfo project
• src/ the source code of the application
• start.html HTML page to run the applet version of JOSM
• test/ automated software tests
  • data/ resources used for some tests
  • functional/ functional tests (source code)
  • lib/ libraries needed for (some of) the tests, including JUnit
  • performance/ performance tests (source code)
  • unit/ unit tests (source code)
• tools/ libraries and tools that help in the development process
  • animal-sniffer-ant-tasks.jar used to build and check code signatures to ensure plugins binary compatibility
  • appbundler-1.0ea.jar used to build Mac OS X package
  • checkstyle/ libs and config files for checkstyle (automatically detects code style problems in source code); can be launched as an ant target in build.xml
  • ivy/ Apache Ivy binary, configuration file, and downloaded dependencies
  • jacocoant.jar used to include coverage data into JUnit test reports
  • japicc/ used to generate a compatibility report between optimized jar and normal one
  • spotbugs/ libs and config files for spotbugs (automatically detects common bugs and potential problems in source code); can be launched as an ant target in build.xml
  • xmltask.jar used to edit XML files from Ant for the OSX package

Third party libraries

There are some third party libraries which are directly included in the source code tree, in particular:

• jmapviewer: Java component to browse a TMS map src/org/openstreetmap/gui (svn external) -> http://svn.openstreetmap.org/applications/viewer/jmapviewer/
• Apache commons compress: Support for bzip2 compression when opening files -> https://github.com/apache/commons-compress
• Apache commons validator: Improved validator routines src/org/openstreetmap/josm/data/validation/routines -> http://commons.apache.org/proper/commons-validator
• SVG Salamander: Support for SVG image format src/com/kitfox/svg -> https://github.com/blackears/svgSalamander
• Metadata Extractor: Read EXIF Metadata of photos -> https://github.com/drewnoakes/metadata-extractor
• Signpost: OAuth library -> https://github.com/mttkay/signpost
• MultiSplitPane: Small lib for GUI layout management src/org/openstreetmap/josm/gui/MultiSplitLayout.java, MultiSplitPane.java -> https://github.com/floscher/multi-split -> https://community.oracle.com/docs/DOC-983539
• swinghelper: Class CheckThreadViolationRepaintManager to find EDT violations src/org/openstreetmap/josm/gui/util/CheckThreadViolationRepaintManager.java -> https://github.com/floscher/swinghelper
• xz extractor -> https://tukaani.org/xz/java.html
• OpeningHoursParser (MIT license) -> https://github.com/simonpoole/OpeningHoursParser