Index: /trunk/src/org/openstreetmap/josm/data/SystemOfMeasurement.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/data/SystemOfMeasurement.java	(revision 8557)
+++ /trunk/src/org/openstreetmap/josm/data/SystemOfMeasurement.java	(revision 8558)
@@ -24,4 +24,5 @@
     /**
      * Interface to notify listeners of the change of the system of measurement.
+     * @since 8554
      */
     public interface SoMChangeListener {
@@ -74,7 +75,8 @@
 
     /**
-     * Removes a global SoM change listener
+     * Removes a global SoM change listener.
      *
      * @param listener the listener. Ignored if null or already absent
+     * @since 8554
      */
     public static void removeSoMChangeListener(SoMChangeListener listener) {
@@ -83,7 +85,8 @@
 
     /**
-     * Adds a SoM change listener
+     * Adds a SoM change listener.
      *
      * @param listener the listener. Ignored if null or already registered.
+     * @since 8554
      */
     public static void addSoMChangeListener(SoMChangeListener listener) {
@@ -102,4 +105,5 @@
      * Returns the current global system of measurement.
      * @return The current system of measurement (metric system by default).
+     * @since 8554
      */
     public static SystemOfMeasurement getSystemOfMeasurement() {
@@ -114,4 +118,5 @@
      * @param somKey The system of measurement key. Must be defined in {@link SystemOfMeasurement#ALL_SYSTEMS}.
      * @throws IllegalArgumentException if {@code somKey} is not known
+     * @since 8554
      */
     public static void setSystemOfMeasurement(String somKey) {