doc: JOSM uses JavaCC for parsing MapCSS
@@ -294,6 +294,7 @@ User | Use Case
[Apache Tomcat](https://tomcat.apache.org/) | Parsing Expression Language (EL) and JSON | [ELParser.jjt](https://github.com/apache/tomcat/blob/master/java/org/apache/el/parser/ELParser.jjt), [JSONParser.jj](https://github.com/apache/tomcat/blob/master/java/org/apache/tomcat/util/json/JSONParser.jj)
[Apache Zookeeper](https://zookeeper.apache.org/) | Optimising serialisation/deserialisation of Hadoop I/O records | [rcc.jj](https://github.com/apache/zookeeper/blob/master/zookeeper-jute/src/main/java/org/apache/jute/compiler/generated/rcc.jj)
[Java Parser](https://javaparser.org/) | Parsing Java language files | [java.jj](https://github.com/javaparser/javaparser/blob/master/javaparser-core/src/main/javacc/java.jj)
+[JOSM](https://josm.openstreetmap.de/) | Parsing MapCSS files | [MapCSSParser.jj](https://josm.openstreetmap.de/browser/josm/trunk/src/org/openstreetmap/josm/gui/mappaint/mapcss/MapCSSParser.jj)
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## <a name="contributing"></a>Contributing
