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    v130 v223  
    11[[TranslatedPages]]
    22[[PageOutline(2-3,Table of Contents)]]
     3
    34= Download =
    45
     
    78And for very complex issues see [wikitr:/InstallNotes Installation Notes].
    89
    9 == Recommended options ==
    10 
    11 [[Image(source:trunk/images/openlocation.png, valign=middle, link=download/josm.jnlp )]] **Start [/download/josm.jnlp josm.jnlp]** (newest tested version) [[br]] Recommended version, all platforms, automatic update to the newest ''tested version'' monthly ([#Troubleshootingjnlplink how to start]).[[br]]
    12 
    13 [[br]]
    14 [[Image(source:trunk/images/download.png, valign=middle, link=)]] **Download [/josm-tested.jar josm-tested.jar]** (tested version [[Version(tested)]]) [[br]] All platforms ([#Troubleshootingjarfile how to run]).
    15 
    16 [[br]]
     10== Recommended options ==#Recommendedoptions
     11[[JOSMImage(openlocation, valign=middle, link=[download/josm.jnlp])]] **Start [/download/josm.jnlp josm.jnlp]** (newest tested version) \\
     12Recommended version, all platforms, automatic update to the newest ''tested version'' monthly ([#Webstart how to start]). \\ \\
     13
     14[[JOSMImage(download, valign=middle, link=[/josm-tested.jar])]] **Download [/josm-tested.jar josm-tested.jar]** (tested version [[Version(tested)]]) \\
     15All platforms ([#Java how to run]). \\ \\
     16
    1717
    1818== All download options ==#Moredownloadoptions
    19 
    2019Every [/roadmap month] the team of JOSM [wikitr:/Releases releases] a **tested version** for download.
    21 The MS Windows and Apple Mac variants are built on this tested version.
     20The MS Windows and Apple macOS variants are built on this tested version.
    2221When you click on josm.jnlp to launch JOSM you will always get the newest tested version. Java's [wikitr:/InstallNotes#Webstart Web Start] is the mechanism behind this.
    2322
     
    2726For the latest version is also a Web Start variant available.
    2827
    29 
    30 ||= =||||= For all operating systems =||||||||||
    31 ||=Version =||=  Web Start  =||= Download =||= Windows =||= Apple Mac =||= Ubuntu, Debian…  =||= openSUSE =||
    32 ||tested [[Version(tested)]] ||   \
    33 ||   [/download/josm.jnlp josm.jnlp] ||  \
    34 ||   [/josm-tested.jar] ||           \
    35 ||   [[br]] [/download/windows/josm-setup.exe setup.exe] [[br]]''([#Mswindowswrapper see below])'' ||  \
    36 ||   [[br]] [/download/macosx/josm-macosx.zip package.zip] [[br]]''([#MacOSerrors see below])'' ||  \
    37 ||   ''[#Ubuntu see below]'' ||          \
    38 ||   ''[#openSUSE see below]'' ||
    39 ||latest [[Version(latest)]] || \
    40 ||   [/download/josm-latest.jnlp latest.jnlp] ||  \
    41 ||   [/josm-latest.jar] || \
    42 ||   || || ''[#Ubuntu see below]'' || ||
    43 ||=older =|| || [/download/ download/] || || || [/apt/dists/ dists/] || ||
    44 
    45 When running scripts please first check on [/latest latest], [/tested tested] or [/version both] to reduce download bandwidth.
     28||= =||||= **For all operating systems** =|||||||| ||= **Development** =||
     29||=**Version** =||= **Web Start** =||= **Download** =||= **Windows** =||= **Apple macOS** =||= **Ubuntu, Debian…**  =||= **openSUSE** =||= **Jar / Javadoc / Source** =||
     30||**tested [[Version(tested)]]** ||  \
     31||  [/download/josm.jnlp josm.jnlp]  ||  \
     32||  [/josm-tested.jar]  ||  \
     33||  \\ [/download/windows/josm-setup.exe josm-setup.exe] \\ [/download/windows/josm-setup.msi josm-setup.msi] \\ [https://apps.microsoft.com/store/detail/josm/XPFCG1GV0WWGZX Microsoft Store]\\ ''([#Mswindowswrapper see below])''  ||  \
     34||  \\ [/download/macosx/josm-macosx.zip JOSM macOS .zip package] \\ ''or ([#macOS homebrew])''  ||  \
     35||  ''[#Ubuntu see below]''  ||  \
     36||  ''[#Opensuse see below]''  ||  \
     37||  [/nexus/content/groups/public/org/openstreetmap/josm/josm/ josm]:[[Version(tested)]]  ||
     38||**latest [[Version(latest)]]** ||  \
     39||  [/download/josm-latest.jnlp latest.jnlp]  ||  \
     40||  [/josm-latest.jar]  ||  \
     41||  ''see [https://github.com/openstreetmap/josm/releases releases on github]  ||  \
     42||  ''see [https://github.com/openstreetmap/josm/releases releases on github]  ||  \
     43||  ''[#Ubuntu see below]''  || ||  \
     44||  [/nexus/content/groups/public/org/openstreetmap/josm/josm/SNAPSHOT/ Use snapshots]  ||
     45||=''**older**'' =|| ||  \
     46||  [/download/ download/]  ||  \
     47||  ''see [https://github.com/openstreetmap/josm/releases releases on github]  ||  \
     48||  ''see [https://github.com/openstreetmap/josm/releases releases on github]  ||  \
     49||  [/apt/pool/universe/j/ pool/]  || ||  \
     50||  [/nexus/content/groups/public/org/openstreetmap/josm/josm/ tested versions]  ||
     51
     52When running scripts please first check on [/latest latest], [/tested tested] or [/version all] to reduce download bandwidth.
    4653
    4754** Strip translations **[=#Striptranslations]  \\
    4855If download size is an issue, smaller files of the tested version are available. For downloads containing only English append [/josm-tested.jar?lang=en ?lang=en] to the URL. To include one translation replace `en` with the [wikitr:/TracLanguages language code] you want (lowercase first character, supported languages only). You can further reduce the file size by stripping the signing information off with appending [/josm-tested.jar?lang=en&unsigned=1 ?unsigned=1].
    4956
    50 == Repositories ==
    51 
    52 === openSUSE  ===#openSUSE
    53 
    54 The tested version of JOSM is available in the Application:Geo repository.
    55 
    56 First add as root user in yast or with zypper the repository (replace the version in the URL with the one you are using):
    57 {{{
    58 zypper ar -f https://download.opensuse.org/repositories/Application:/Geo/openSUSE_Leap_15.0 Application:Geo
    59 }}}
    60 
    61 Then simply install ''josm'' and ''josm-fonts'' package.
    62 
    63 === Ubuntu ===#Ubuntu
    64 
    65 This is a package repository primarily for Ubuntu. It should also work with other Debian based (especially Ubuntu based) distributions, but we do not actively test and maintain any distributions other than Ubuntu.
     57
     58== Linux Repositories ==
     59=== JOSM's Debian based mainly for Ubuntu ===#Ubuntu
     60This is our own package repository primarily for Ubuntu. It should also work with other Debian based (especially Ubuntu based) distributions, but we do not actively test and maintain any distributions other than Ubuntu.
    6661
    6762The repository contains two packages:
    68 * ''josm''  – Provides the tested version (stable).  Replaces the package from the official Ubuntu repository.
    69 * ''josm-latest'' – The latest version (nightly). Can be installed parallel to the josm package. The default preference folder is {{{~/.josm-latest}}}.
    70 
    71 In addition to the regular procedure described below, older DEBs can be manually downloaded from the [https://josm.openstreetmap.de/apt/pool/universe/j/ archives].
     63* ''josm'' – Provides the tested version (stable). Replaces the package from the official repository of your distribution. The default JOSM directories name is set to `JOSM`.
     64* ''josm-latest'' – The latest version (nightly). Can be installed in parallel to the josm package, therefore the default JOSM directories name is set to `JOSM-latest`.
     65Both packages provide `/etc/default/josm` respectively `/etc/default/josm-latest` as config file for [wikitr:Help/CommandLineOptions#Javaoptions java options].
     66
     67In addition to the regular procedure described below, older DEBs can be manually downloaded from the [/apt/pool/universe/j/ archives].
    7268
    7369==== Installation ====
    74 
    75 Edit the package resource list {{{/etc/apt/sources.list}}}:
    76 
    77 {{{
    78 #!sh
    79 sudo editor /etc/apt/sources.list
     70Edit the package resource list `/etc/apt/sources.list.d/josm.list`:
     71{{{#!sh
     72sudo editor /etc/apt/sources.list.d/josm.list
     73}}}
     74{{{#!comment
     75### below does not work on GNU Debian systems
     76`sudo $EDITOR /etc/apt/sources.list.d/josm.list`
    8077}}}
    8178
    8279and add one of the following lines according to your Ubuntu-Version:
    8380
    84 {{{
    85 #!sh
    86 deb https://josm.openstreetmap.de/apt trusty universe
    87 deb https://josm.openstreetmap.de/apt xenial universe
    88 deb https://josm.openstreetmap.de/apt artful universe
     81{{{#!sh
     82deb [signed-by=/usr/local/share/keyrings/josm-apt.gpg] https://josm.openstreetmap.de/apt plucky universe
     83deb [signed-by=/usr/local/share/keyrings/josm-apt.gpg] https://josm.openstreetmap.de/apt oracular universe
     84deb [signed-by=/usr/local/share/keyrings/josm-apt.gpg] https://josm.openstreetmap.de/apt noble universe
     85deb [signed-by=/usr/local/share/keyrings/josm-apt.gpg] https://josm.openstreetmap.de/apt jammy universe
     86deb [signed-by=/usr/local/share/keyrings/josm-apt.gpg] https://josm.openstreetmap.de/apt focal universe
     87deb [signed-by=/usr/local/share/keyrings/josm-apt.gpg] https://josm.openstreetmap.de/apt bionic universe
     88
    8989# For other Debian based distributions add:
    90 deb https://josm.openstreetmap.de/apt alldist universe
    91 }}}
    92 
    93 Alternatively, this can be done with the following one-liner in Ubuntu:
    94 {{{
    95 echo deb https://josm.openstreetmap.de/apt $(lsb_release -sc) universe | ↩
    96 ↪sudo tee /etc/apt/sources.list.d/josm.list > /dev/null
     90deb [signed-by=/usr/local/share/keyrings/josm-apt.gpg] https://josm.openstreetmap.de/apt alldist universe
     91}}}
     92
     93Alternatively, this can be done with the following one-liner in Ubuntu (not for Ubuntu based distributions like Linux Mint):
     94{{{#!sh
     95echo "deb [signed-by=/usr/local/share/keyrings/josm-apt.gpg] https://josm.openstreetmap.de/apt $(lsb_release -sc) universe" | sudo tee /etc/apt/sources.list.d/josm.list > /dev/null
     96}}}
     97or for Linux Mint:
     98{{{#!sh
     99echo "deb [signed-by=/usr/local/share/keyrings/josm-apt.gpg] https://josm.openstreetmap.de/apt $(grep ^DISTRIB_CODENAME= /etc/upstream-release/lsb-release| awk -F = '{print $(2)}') universe" | sudo tee /etc/apt/sources.list.d/josm.list > /dev/null
    97100}}}
    98101
     
    100103### below did not work on all systems
    101104and add the following line:
    102 `
    103 deb https://josm.openstreetmap.de/apt VERSION universe
    104 `
    105 }}}
    106 
    107 Download and register the [[/josm-apt.key|public key]]:
    108 {{{
    109 #!sh
    110 wget -q https://josm.openstreetmap.de/josm-apt.key -O- | sudo apt-key add -
    111 }}}
    112 
    113 Now refresh your sources (you may need to install `sudo apt-get install apt-transport-https`)
    114 {{{
    115 #!sh
     105{{{#!sh
     106`deb [signed-by=/usr/local/share/keyrings/josm-apt.gpg] https://josm.openstreetmap.de/apt VERSION universe`
     107}}}
     108}}}
     109
     110Download the [/josm-apt.key public key]:
     111{{{#!sh
     112# Create the directory for manually downloaded keys if it was not already created
     113sudo mkdir -p /usr/local/share/keyrings
     114# Download the key
     115wget -q https://josm.openstreetmap.de/josm-apt.key -O- | sudo gpg --dearmor -o /usr/local/share/keyrings/josm-apt.gpg
     116}}}
     117In the past, instructions used `apt-key`. If the key was added to system's keyring, following line will remove it:
     118{{{#!sh
     119sudo apt-key del $(apt-key list | grep -B1  "<josm-dev@openstreetmap.org>" | sed '$d' | cut -b 48-51,53-57)
     120}}}
     121
     122Now refresh your sources:
     123{{{#!sh
     124# You may need to install ssl support for apt in advance:
     125sudo apt-get install apt-transport-https
     126# Refresh sources
    116127sudo apt-get update
    117128}}}
     129
    118130and install:
    119 ()
    120 {{{
    121 #!sh
     131{{{#!sh
    122132# You can skip this first line if these packages were not installed before.
    123133sudo apt-get remove josm josm-plugins
     
    125135# For the tested version
    126136sudo apt-get install josm
    127 # for the development version
     137# For the development version
    128138sudo apt-get install josm-latest
    129139}}}
     140
     141
     142=== GNU Debian ===#GNUDebian
     143Our own Ubuntu packages, [#Ubuntu above], work on Debian and we recommend to use them. Depending on the setup of `sudo`, some instruction will not work as "normal" user but only as `root`.
     144
     145The tested version of [https://packages.debian.org/stable/josm JOSM] is available under **''main''** in section **''utils''**, but the version is usually quite old. \\
     146Please, use the [https://backports.debian.org backports repository] to get a more up-to-date version, see [https://backports.debian.org/Instructions Instructions]. This version might still be older than our own packages.
     147
     148Since Debian 11 (bullseye) the [https://packages.debian.org/stable/josm-installer josm-installer] is available under **''main''** in section **''utils''**. It downloads the current .jar file from this site and updates it if necessary.
     149
     150=== openSUSE  ===#Opensuse
     151The tested version of JOSM is available in the Application:Geo repository.[=#openSUSE]
     152
     153First add as root user in yast or with zypper the repository (for Tumbleweed replace **$releasever** with **openSUSE_Tumbleweed**):
     154{{{#!sh
     155zypper ar -f 'https://download.opensuse.org/repositories/Application:/Geo/$releasever' Application:Geo
     156}}}
     157
     158Then simply install ''josm'' and ''josm-fonts'' package.
     159
    130160
    131161== Troubleshooting ==
    132162=== Java ===#Java
    133 [=#Doubleclickonafiledoesnothing When you double-click on a jar file and nothing happens] in most cases this means Java isn't installed.
    134 
    135 JOSM is tested with Oracles variant, so we recommend to get Java from their [https://www.java.com/en/download/manual.jsp manual download] page. But first give the Java already distributed with the operating system a try, [https://en.wikipedia.org/wiki/OpenJDK for example].
     163When you double-click on a jar file and nothing happens in most cases this means Java isn't installed.
     164
     165JOSM now recommends [https://www.azul.com/downloads/?version=java-21-lts&package=jdk-fx#zulu Azul] or [https://bell-sw.com/pages/downloads/?package=jre-full#mn Bellsoft Liberica] JDK's. Generally speaking, the current Java LTS should be preferred (at time of writing, that would be Java 17), but Java 11 will work. See the [source:/trunk/README README] for current recommendations. But first give the Java already distributed with the operating system a try, [https://en.wikipedia.org/wiki/OpenJDK for example].
     166
    136167
    137168When choosing a download keep in mind:
     
    143174''Java'' in this section means a JRE (Java Runtime Engine) which provides a JVM (Java Virtual Machine) to run JOSM, a Java program that is developed using JDK (Java Development Kit) and sometimes launched with the JNLP (Java Network Launch Protocol aka Web Start and successor of Java Plug-ins).
    144175
    145 ==== Testing Java ====#Javatest
     176==== Testing Java ====#JavaTest
    146177[=#Troubleshootingjarfile] Checks if Java is installed and why JOSM does not start (example mainly for MS Windows).
    1471781. Download [/josm-tested.jar josm-tested.jar] to your desktop.
     
    154185
    155186
    156 === Web Start ===
     187=== Web Start ===#Webstart
    157188[=#Troubleshootingjhlplink]
    158 Launching JOSM via Web Start has many more error causes than the traditional way with first downloading a jar file and afterwards starting it.
    159 So please test [#JavaTest Java] first and then run the tests described below or elsewhere [https://www.java.com/en/download/faq/java_webstart.xml Web Start issues].
     189You need to install [https://openwebstart.com/ OpenWebStart] first. It will download and run Java by itself. Please use the 64 bit (`x64`) version of OpenWebStart if you are on Microsoft Windows. The transition from Oracle WebStart to OpenWebStart is still in progress, so in case of issue please create a [/newticket new ticket] or post a comment to #17858.
     190
     191You may need to update the default application for opening JNLP files if you previously used Oracle WebStart. See [https://openwebstart.com/docs/OWSGuide.html#_jnlp_file_association jnlp file association] for instructions on setting OpenWebStart as the default program for jnlp files.
    160192
    161193==== Testing Web Start ====#Webstarttest
    162 1. Download [/josm-tested.jar josm.jnlp] to your desktop.
     1941. Download [/download/josm.jnlp josm.jnlp] to your desktop.
    1631951. Open a Terminal and move to the Desktop as above
    164 1. Type `javaws josm.jnlp`⏎. This should initially download JOSM, serve a security dialog and then launch JOSM.
     1961. Type `javaws josm.jnlp`⏎. This should initially download JOSM, show a security dialog and then launch JOSM.
     1971. If that fails, then type `javaws -verbose josm.jnlp`⏎. This should first show a dialog with information about the JVM and then launch JOSM.
    165198
    166199
    167200=== Virtual Machine ===#Troubleshootingjvm
    168 
    169201==== Out of memory ====
    170 
    171202Nowadays manually controlling Javas memory is seldom needed because available RAM on computers has grown.
    172203Wrongly chosen values can decrease JOSM performance.
    173204
    174205For some tasks, JOSM has a large appetite for memory. On the one hand, it may be necessary to configure a memory size that supports more plugins and features. On the other hand can slow machines be stabilized by restricting Javas memory use.
    175 If needed, use the [wikitr:Help/CommandLineOptions command line] to set the [https://docs.oracle.com/javase/8/docs/technotes/tools/unix/java.html#BABHDABI Java Option] -Xmx…m, for example `-Xmx512m` or `-Xmx1536m`.
     206If needed, use the [wikitr:/Help/CommandLineOptions command line] to set the [https://docs.oracle.com/en/java/javase/11/tools/java.html#GUID-3B1CE181-CD30-4178-9602-230B800D4FAE__BABHDABI Java Option] -Xmx…m, for example `-Xmx512m` or `-Xmx1536m`. In Debian/Ubuntu you can edit the file `/etc/default/josm` respectively `/etc/default/josm-latest`. \\
    176207Formerly older java programs accepted `-Xmx=512m` or even `-Xmx 512m`. Now those malformed arguments throw error messages.
    177208
    178 
    179209==== VM selection ====#VMselectiononWindowsx64
    180 
    181210On current versions of MS Windows by default Java is installed mainly in the `C:\Program Files\Java\` directory. Additional parts are placed in `C:\Program Files\Oracle\Java\`. There is a `.\javapath\` directory as target for the PATH environment variable. It is the home for the three virtual files `java.exe`, `javaw.exe` and `javaws.exe`. This files are symbolic links form the current Java installations.
    182211
    183212On older versions of 64 bit Windows sometimes the 32 bit mode JRE was additionally installed.  Also some browsers brought their own JVM with limited capabilities. In those cases a Web Start from the browser would not use your Java installation but that from the browser.
    184213
    185 Check that there's no other javawebstart in {{{\Windows\SysWow64}}}. The Java control panel will not detect it and you can safely delete it. Perfom cleanup and only keep the latest versions of each JRE (One or the 32-bit mode, another one for the 64-bit mode).
    186 
    187 For shortcuts created on the desktop for JNLP and running the Javawebstart launcher , make sure to pass VM parameters prefixed with -J and no intermediate space before the VM option. If you have installed both the 32-bit and 64-bit version, you should pass the option "{{{-d64}}}" if you want to select the preferred 64-bit VM. Note that some Oracle documentation pages indicate the option "-D64" with the incorrect capitalization!)
     214Check that there's no other javawebstart in `\Windows\SysWow64`. The Java control panel will not detect it and you can safely delete it. Perform cleanup and only keep the latest versions of each JRE (One or the 32-bit mode, another one for the 64-bit mode).
     215
     216For shortcuts created on the desktop for JNLP and running the Javawebstart launcher , make sure to pass VM parameters prefixed with -J and no intermediate space before the VM option. If you have installed both the 32-bit and 64-bit version, you should pass the option "`-d64`" if you want to select the preferred 64-bit VM. Note that some Oracle documentation pages indicate the option "-D64" with the incorrect capitalization!)
    188217
    189218Example of an edited command line for a shortcut on the windows desktop:
     
    193222}}}
    194223
    195 === Windows josm.exe ===#Mswindowswrapper
    196 
     224=== Microsoft Windows ===#MSWindows
     225==== josm.exe ====#Mswindowswrapper
    197226Using josm-setup.exe for installation on Microsoft Windows does the following:
    198  * Puts the files `josm-tested.jar` and `josm.exe` in directory chosen by the user, default is `C:\Program Files (86)\JOSM\`
    199  * Suggests to register josm.exe as target for the file extensions `*.osm` and `*.gpx`.
    200  * Suggests to place JOSM shortcut icons on the Desktop and in the Start Menu (Currently they are placed for an admin [ticket:11398 only] and can be copied from there).
    201  * Asks if the Plug-Ins Imagery offset database and Turn restrictions should be provided.
     227 * Puts two executable files `JOSM.exe` and `HWConsole.exe` in directory `%LOCALAPPDATA%\JOSM`
     228 * Registers JOSM.exe as target for the file extensions `*.osm`, `*.geojson`, `*.gpx`, `*.jos` and `*.joz`.
     229 * Places JOSM shortcut icons on the Desktop and in the Start Menu.
    202230 * Adds uninstall data at the appropriate places.
    203231
    204 When starting, josm.exe searches its directory for the jar file and runs the command `\path\to\javaw.exe -Xms128m -Xmx1024m -jar \path\to\josm-tested.jar`.
    205 Josm.exe acts as a ''wrapper'' and is [wikitr:/USB_Stick portable].
    206 
    207 When josm.exe finds the argument `--l4j-debug`, it writes the log file `launch4j.log` into the current directory if that is writeable. Some other [http://launch4j.sourceforge.net/docs.html#Runtime_options options] are possible and all usual [wikitr:/Help/CommandLineOptions#Programarguments JOSM Program arguments] too. See example:
     232When starting, JOSM.exe starts JOSM with an embedded version of Java maintained by JOSM developers, based on Azul Zulu.
     233JOSM.exe acts as a ''wrapper'' and is [wikitr:/USB_Stick portable].
     234
     235HWConsole.exe is similar to JOSM.exe but start JOSM while keeping open a Windows console displaying JOSM standard output (logs).
     236
     237JOSM.exe accepts all usual [wikitr:/Help/CommandLineOptions#Programarguments JOSM Program arguments]. See example:
    208238
    209239{{{
    210240#!sh
    211 # Write a log while starting JOSM and load OSM data
    212 josm.exe --l4j-debug https://www.osm.org/way/476702262
    213 }}}
    214 
    215 
    216 === MacOS Errors ===#Macoserrors
    217 [=#MacOSErrors][=#MacOSXMountainLionErrors]
     241# Load OSM data
     242josm.exe https://www.osm.org/way/476702262
     243}}}
     244
     245For giving [wikitr:/Help/CommandLineOptions#Javaoptions Java options] to the Java VM, JOSM.exe uses the configuration file `JOSM.cfg` in its app sub-directory. In this file, each option must be on a separate line.
     246
     247For example, to change memory allocation, open `%LOCALAPPDATA%\JOSM\app\JOSM.cfg` and add `java-options=-Xmx8192m` (for 8 GB) to a new line under the `[JavaOptions]` header.
     248
     249==== Graphics ====#MicrosoftWindowsGraphics
     250Some Windows installations have graphics driver issues (see #23784 for an example). This may exhibit symptoms such as:
     251* Black bars in JOSM toolbars
     252* Flickering
     253* Other unexpected user interface issues
     254
     2551. Download and install Display Driver Uninstaller (DDU, [https://github.com/Wagnard/display-drivers-uninstaller source]) from the official mirror => https://www.wagnardsoft.com/display-driver-uninstaller-DDU-
     2562. From the "Device Type" drop-down on the right, select "GPU". DDU will automatically detect the GPU you're using.
     2573. Click on "Clean and Restart" at the top. This will uninstall the graphics drivers and restart your PC.
     2584. Reinstall the drivers.
     259
     260//**WARNING: Create a backup of your PC before using DDU. Although it creates a recovery point by itself, it's ideal to make one yourself just in case.**//
     261
     262=== macOS ===#macOS
     263[=#MacOSErrors][=#MacOSXMountainLionErrors][=#Macoserrors]
    218264{{{
    219265#!comment
    220266old section title, keeping as anchor for old links
    221267}}}
    222 Apple has two mechanisms to ''protect'' you from using JOSM: Gatekeeper and Malware protection.
    223 ==== Downloaded from the internet ====
    224 If you get an error saying "'JOSM.app' is an application downloaded from the internet." you can bypass this by **right-clicking on JOSM.app** or josm.jnlp and selecting 'open'. You should then see the same message but this time with an option to "Open" regardless. This is only necessary on the first run of JOSM.
    225 
    226 ==== Damaged ====
    227 [[Image(#8787:damaged_josm_app.png,width=300,align=right,margin-top=-50,margin-left=30)]]
    228 If you get an error saying "'JOSM.app' is damaged and can't be opened. You should move it to the Trash", then you need to temporarily disable Gatekeeper.
    229 
    230 Open System Preferences and the 'Security & Privacy' options. Set 'Allow applications downloaded from:' to 'Anywhere'.
    231 
    232 If that radio button is missing from the Security & Privacy preferences panel, open the Terminal window. The following command may become the radio button to appear. [[Image(SecurityPrivacy.png,align=right,float=left,width=300)]]
    233 {{{
    234 sudo spctl --master-disable
    235 }}}
    236 
     268
     269==== Using brew ====#brew
     270macOS users may use the [https://brew.sh/ homebrew] package manager to install and update their JOSM instance.
     271
     272In Terminal, run the `brew install --cask josm` to install or `brew upgrade --cask josm` to upgrade to the current tested version of JOSM.
     273
     274=== Linux ===#linux
     275==== Arch Linux ====
     276Using AUR you can install [https://aur.archlinux.org/packages/openwebstart-bin openwebstart-bin].
     277
     278If you use [https://archlinux.org/packages/extra/x86_64/icedtea-web/ icedtea-web] instead of the recommended openwebstart you will get an error with the newest java. java-17-openjdk is known to work, but java-22-openjdk do not.
    237279
    238280
    239281=== Known issues ===
    240 
    241 Not closed issues about ...:
    242 * [https://josm.openstreetmap.de/query?status=!closed&type=defect&keywords=~java Java issues] - some of the bugs lead to blockers in Oracle JVM (covered at [[JavaBugs]]).
    243 * [https://josm.openstreetmap.de/query?status=assigned&type=defect&status=needinfo&status=new&status=reopened&keywords=~linux&order=priority Linux]
    244 * [https://josm.openstreetmap.de/query?status=assigned&type=defect&status=needinfo&status=new&status=reopened&keywords=~ubuntu&order=priority Ubuntu]
    245 * [https://josm.openstreetmap.de/query?status=assigned&type=defect&status=needinfo&status=new&status=reopened&keywords=~macos&order=priority MacOS]
    246 * [https://josm.openstreetmap.de/query?status=assigned&type=defect&status=needinfo&status=new&status=reopened&keywords=~windows&order=priority Windows]
     282Not closed issues about …:
     283* [/query?status=!closed&type=defect&keywords=~java Java issues] - some of the bugs lead to blockers in Oracle JVM (covered at [wiki:JavaBugs JavaBugs]).
     284* [/query?status=assigned&type=defect&status=needinfo&status=new&status=reopened&keywords=~linux&order=priority Linux]
     285* [/query?status=assigned&type=defect&status=needinfo&status=new&status=reopened&keywords=~ubuntu&order=priority Ubuntu]
     286* [/query?status=assigned&type=defect&status=needinfo&status=new&status=reopened&keywords=~macos&order=priority macOS]
     287* [/query?status=assigned&type=defect&status=needinfo&status=new&status=reopened&keywords=~windows&order=priority Windows]