Index: trunk/src/org/openstreetmap/josm/tools/Utils.java
===================================================================
--- trunk/src/org/openstreetmap/josm/tools/Utils.java	(revision 13516)
+++ trunk/src/org/openstreetmap/josm/tools/Utils.java	(revision 13520)
@@ -1575,5 +1575,5 @@
     /**
      * Returns the Java version as an int value.
-     * @return the Java version as an int value (8, 9, etc.)
+     * @return the Java version as an int value (8, 9, 10, etc.)
      * @since 12130
      */
@@ -1591,5 +1591,5 @@
         int dashPos = version.indexOf('-');
         return Integer.parseInt(version.substring(0,
-                dotPos > -1 ? dotPos : dashPos > -1 ? dashPos : 1));
+                dotPos > -1 ? dotPos : dashPos > -1 ? dashPos : version.length()));
     }