debian/changelog

+josm (0.0.svn13576+dfsg-2) unstable; urgency=medium
+
+  * Bump Java dependencies from 8 to 9.
+    java9-runtime is required when built with java9-sdk.
+
+ -- Bas Couwenberg <sebastic@debian.org>  Wed, 28 Mar 2018 07:21:38 +0200
+
 josm (0.0.svn13576+dfsg-1) unstable; urgency=medium
 
   * New tested snapshot.

debian/control

@@ -6,7 +6,7 @@ Uploaders: David Paleino <dapal@debian.org>,
 Section: utils
 Priority: optional
 Build-Depends: debhelper (>= 9~),
-               default-jdk (>= 2:1.8) | java8-sdk,
+               default-jdk (>= 2:1.9) | java9-sdk,
                ant,
                ant-contrib,
                gettext,
@@ -28,7 +28,7 @@ Homepage: https://josm.openstreetmap.de
 
 Package: josm
 Architecture: all
-Depends: default-jre (>= 2:1.8) | java8-runtime,
+Depends: default-jre (>= 2:1.9) | java9-runtime,
          fonts-noto,
          jmapviewer (>= 2.7),
          libcommons-compress-java,