diff --git a/ant-contrib-sourcetarget.patch b/ant-contrib-sourcetarget.patch
index 383ad44..12b079d 100644
--- a/ant-contrib-sourcetarget.patch
+++ b/ant-contrib-sourcetarget.patch
@@ -6,5 +6,5 @@
  ivy.deliver.revision=${project.version}
 -jdk.source=1.4
 -jdk.target=1.4
-+jdk.source=1.6
-+jdk.target=1.6
++jdk.source=8
++jdk.target=8
diff --git a/ant-contrib.changes b/ant-contrib.changes
index 0d30cd1..550af87 100644
--- a/ant-contrib.changes
+++ b/ant-contrib.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Tue May 15 05:45:46 UTC 2018 - fstrba@suse.com
+
+- Build with source and target 8 to prepare for a possible removal
+  of 1.6 compatibility in OpenJDK 11
+- Run fdupes on the documentation
+
 -------------------------------------------------------------------
 Wed Sep  6 18:17:00 UTC 2017 - fstrba@suse.com
 
diff --git a/ant-contrib.spec b/ant-contrib.spec
index a417ade..1a275f0 100644
--- a/ant-contrib.spec
+++ b/ant-contrib.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package ant-contrib
 #
-# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2018 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -22,7 +22,7 @@ Release:        0
 Summary:        Collection of tasks for Ant
 License:        Apache-2.0
 Group:          Development/Libraries/Java
-Url:            http://ant-contrib.sourceforge.net/
+URL:            http://ant-contrib.sourceforge.net/
 Source0:        http://prdownloads.sourceforge.net/ant-contrib/ant-contrib-%{version}-src.tar.gz
 Source1:        http://mirrors.ibiblio.org/pub/mirrors/maven2/%{name}/%{name}/1.0b3/%{name}-1.0b3.pom
 # ASL 2.0 Licence text
@@ -38,7 +38,8 @@ BuildRequires:  apache-ivy
 BuildRequires:  bcel >= 5.1
 BuildRequires:  commons-httpclient
 BuildRequires:  commons-logging
-BuildRequires:  java-devel >= 1.6
+BuildRequires:  fdupes
+BuildRequires:  java-devel >= 1.8
 BuildRequires:  javapackages-local
 BuildRequires:  javapackages-tools
 BuildRequires:  junit
@@ -46,7 +47,6 @@ BuildRequires:  xerces-j2
 Requires:       junit >= 3.8.1
 Requires:       xerces-j2
 %requires_eq    ant
-BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildArch:      noarch
 
 %description
@@ -94,6 +94,7 @@ install -Dpm 644 target/%{name}.jar %{buildroot}%{_javadir}/ant/%{name}.jar
 # javadoc
 install -dm 755 %{buildroot}%{_javadocdir}/%{name}
 cp -pr target/docs/api/* %{buildroot}%{_javadocdir}/%{name}
+%fdupes -s %{buildroot}%{_javadocdir}/%{name}
 
 mkdir -p %{buildroot}%{_sysconfdir}/ant.d
 echo "ant/ant-contrib" > %{buildroot}%{_sysconfdir}/ant.d/ant-contrib
@@ -106,19 +107,19 @@ echo "call add_maven_depmap JPP.ant-%{name}.pom ant/%{name}.jar"
 
 %files
 %defattr(0644,root,root,0755)
-%doc target/docs/LICENSE.txt LICENSE-2.0.txt
+%license target/docs/LICENSE.txt
+%doc LICENSE-2.0.txt
 %config %{_sysconfdir}/ant.d/%{name}
 %{_javadir}/ant/%{name}.jar
 %{_mavenpomdir}/JPP.ant-%{name}.pom
 %{_datadir}/maven-metadata/%{name}.xml
 
 %files manual
-%defattr(-,root,root,-)
 %doc target/docs/manual/tasks/*
 
 %files javadoc
-%defattr(-,root,root,-)
-%doc target/docs/LICENSE.txt LICENSE-2.0.txt
+%license target/docs/LICENSE.txt
+%doc LICENSE-2.0.txt
 %doc %{_javadocdir}/%{name}
 
 %changelog