diff -Nru jflex-1.6.1/debian/changelog jflex-1.6.1/debian/changelog
--- jflex-1.6.1/debian/changelog	2016-07-28 04:22:40.000000000 +0000
+++ jflex-1.6.1/debian/changelog	2018-02-13 21:30:33.000000000 +0000
@@ -1,3 +1,15 @@
+jflex (1.6.1-3) unstable; urgency=medium
+
+  * Use compat level 11.
+  * Declare compliance with Debian Policy 4.1.3.
+  * Use https for Format field. Update copyright years.
+  * Change dependency from default-jre to default-jre-headless |
+    java7-runtime-headless.
+    Thanks to Kai-Chung Yan for the report. (Closes: #890345)
+  * Change source/target to 1.7.
+
+ -- Markus Koschany <apo@debian.org>  Tue, 13 Feb 2018 22:30:33 +0100
+
 jflex (1.6.1-2) unstable; urgency=medium
 
   * Tighten build-dependency on jflex.
@@ -150,7 +162,7 @@
   * Changed build system to use ant, cdbs
   * Added a compat file
   * Changed dependency to comply with debian java policy (closes: #237823)
-  * Removed jflex, cup dependency and patch build file to 
+  * Removed jflex, cup dependency and patch build file to
     use the included pregenerated files to avoid dep on itself
   * Register documentation with doc-base
   * Fixed outdated URL in examples/byaccj (closes: #306528)
diff -Nru jflex-1.6.1/debian/compat jflex-1.6.1/debian/compat
--- jflex-1.6.1/debian/compat	2016-07-28 04:22:40.000000000 +0000
+++ jflex-1.6.1/debian/compat	2018-02-13 21:30:33.000000000 +0000
@@ -1 +1 @@
-9
+11
diff -Nru jflex-1.6.1/debian/control jflex-1.6.1/debian/control
--- jflex-1.6.1/debian/control	2016-07-28 04:22:40.000000000 +0000
+++ jflex-1.6.1/debian/control	2018-02-13 21:30:33.000000000 +0000
@@ -7,12 +7,12 @@
 Build-Depends:
  ant,
  cup,
- debhelper (>= 9),
+ debhelper (>= 11),
  default-jdk,
  jflex (>= 1.6.1),
  junit,
  maven-repo-helper
-Standards-Version: 3.9.8
+Standards-Version: 4.1.3
 Vcs-Git: https://anonscm.debian.org/git/pkg-java/jflex.git
 Vcs-Browser: https://anonscm.debian.org/cgit/pkg-java/jflex.git
 Homepage: http://www.jflex.de/
@@ -20,7 +20,7 @@
 Package: jflex
 Architecture: all
 Depends:
- default-jre | java6-runtime,
+ default-jre-headless | java7-runtime-headless,
  ${misc:Depends}
 Enhances:
  ant-optional
diff -Nru jflex-1.6.1/debian/copyright jflex-1.6.1/debian/copyright
--- jflex-1.6.1/debian/copyright	2016-07-28 04:22:40.000000000 +0000
+++ jflex-1.6.1/debian/copyright	2018-02-13 21:30:33.000000000 +0000
@@ -1,4 +1,4 @@
-Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
 Upstream-Name: jflex
 Source: https://github.com/jflex-de/jflex
 Files-Excluded:
@@ -18,7 +18,7 @@
            2011,      Torsten Werner <twerner@debian.org>
            2013,      Sylvestre Ledru <sylvestre@debian.org>
            2016,      Emmanuel Bourg <ebourg@apache.org>
-           2016,      Markus Koschany <apo@debian.org>
+           2016-2018, Markus Koschany <apo@debian.org>
 License: BSD-3-clause
 
 License: BSD-3-clause
diff -Nru jflex-1.6.1/debian/patches/build.patch jflex-1.6.1/debian/patches/build.patch
--- jflex-1.6.1/debian/patches/build.patch	2016-07-28 04:22:40.000000000 +0000
+++ jflex-1.6.1/debian/patches/build.patch	2018-02-13 21:30:33.000000000 +0000
@@ -28,8 +28,8 @@
            description="generate sources and compile all non-test classes">
      <mkdir dir="${compile.output.dir}" />
      <javac destdir="${compile.output.dir}"
-+           source="1.6"
-+           target="1.6"
++           source="1.7"
++           target="1.7"
             debug="on"
             includeantruntime="true">
        <src path="src/main/java"/>
diff -Nru jflex-1.6.1/debian/rules jflex-1.6.1/debian/rules
--- jflex-1.6.1/debian/rules	2016-07-28 04:22:40.000000000 +0000
+++ jflex-1.6.1/debian/rules	2018-02-13 21:30:33.000000000 +0000
@@ -2,7 +2,7 @@
 export JAVA_HOME := /usr/lib/jvm/default-java
 
 %:
-	dh $@ --parallel --with maven_repo_helper
+	dh $@ --with maven_repo_helper
 
 override_dh_auto_build:
 	mkdir -p build/generated-sources/jflex