diff --git a/.gitignore b/.gitignore
index e69de29..35c7013 100644
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,6 @@
+/*.tar.gz
+/jzlib-1*/
+/.project
+/noarch
+/*.src.rpm
+/.build-*.log
diff --git a/jzlib-javadoc-fixes.patch b/jzlib-javadoc-fixes.patch
new file mode 100644
index 0000000..fbd18cb
--- /dev/null
+++ b/jzlib-javadoc-fixes.patch
@@ -0,0 +1,21 @@
+--- src/main/java/com/jcraft/jzlib/ZStream.java.orig 2014-05-09 12:35:05.241400959 +0100
++++ src/main/java/com/jcraft/jzlib/ZStream.java 2014-05-09 12:35:35.093886286 +0100
+@@ -371,6 +371,7 @@
+ /**
+ * Those methods are expected to be override by Inflater and Deflater.
+ * In the future, they will become abstract methods.
++ * @return an error code
+ */
+ public int end(){ return Z_OK; }
+ public boolean finished(){ return false; }
+--- src/main/java/com/jcraft/jzlib/GZIPHeader.java.orig 2014-05-09 12:37:35.358812069 +0100
++++ src/main/java/com/jcraft/jzlib/GZIPHeader.java 2014-05-09 12:37:40.267727366 +0100
+@@ -37,7 +37,7 @@
+ import java.io.UnsupportedEncodingException;
+
+ /**
+- * @see "http://www.ietf.org/rfc/rfc1952.txt"
++ * See "http://www.ietf.org/rfc/rfc1952.txt"
+ */
+ public class GZIPHeader implements Cloneable {
+
diff --git a/jzlib.spec b/jzlib.spec
new file mode 100644
index 0000000..f52780c
--- /dev/null
+++ b/jzlib.spec
@@ -0,0 +1,214 @@
+Name: jzlib
+Version: 1.1.3
+Release: 15%{?dist}
+Epoch: 0
+Summary: Re-implementation of zlib in pure Java
+License: BSD
+URL: http://www.jcraft.com/jzlib/
+BuildArch: noarch
+Source0: https://github.com/ymnk/jzlib/archive/%{version}.tar.gz
+
+# This patch is sent upstream: https://github.com/ymnk/jzlib/pull/15
+Patch0: jzlib-javadoc-fixes.patch
+
+BuildRequires: maven-local
+BuildRequires: mvn(org.apache.felix:maven-bundle-plugin)
+
+%description
+The zlib is designed to be a free, general-purpose, legally unencumbered
+-- that is, not covered by any patents -- loss-less data-compression
+library for use on virtually any computer hardware and operating system.
+The zlib was written by Jean-loup Gailly (compression) and Mark Adler
+(decompression).
+
+%package javadoc
+Summary: API documentation for %{name}
+
+%description javadoc
+%{summary}.
+
+%package demo
+Summary: Examples for %{name}
+Requires: %{name} = %{epoch}:%{version}-%{release}
+
+%description demo
+%{summary}.
+
+%prep
+%setup -q
+%patch0
+
+# Make into OSGi bundle
+%pom_xpath_inject "pom:project" "bundle"
+%pom_add_plugin "org.apache.felix:maven-bundle-plugin" . "true"
+
+%mvn_file : %{name}
+sed -i -e "s|1.5|1.6|" pom.xml
+# Fix javadoc generation on java 11
+%pom_xpath_inject pom:build/pom:plugins "
+maven-javadoc-plugin
+1.8
+"
+
+%build
+%mvn_build
+
+%install
+%mvn_install
+
+# examples
+install -dm 755 %{buildroot}%{_datadir}/%{name}
+cp -pr example/* %{buildroot}%{_datadir}/%{name}
+
+%files -f .mfiles
+%doc LICENSE.txt
+
+%files javadoc -f .mfiles-javadoc
+%doc LICENSE.txt
+
+%files demo
+%doc %{_datadir}/%{name}
+
+%changelog
+* Tue Jul 28 2020 Fedora Release Engineering - 0:1.1.3-15
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
+
+* Fri Jul 10 2020 Jiri Vanek - 0:1.1.3-14
+- Rebuilt for JDK-11, see https://fedoraproject.org/wiki/Changes/Java11
+
+* Thu Jun 25 2020 Alexander Kurtakov 0:1.1.3-13
+- Fix build with Java 11.
+
+* Wed Jan 29 2020 Fedora Release Engineering - 0:1.1.3-12
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
+
+* Thu Jul 25 2019 Fedora Release Engineering - 0:1.1.3-11
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
+
+* Fri Feb 01 2019 Fedora Release Engineering - 0:1.1.3-10
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild
+
+* Fri Jul 13 2018 Fedora Release Engineering - 0:1.1.3-9
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
+
+* Wed Mar 21 2018 Mat Booth - 0:1.1.3-8
+- Add OSGi metadata
+
+* Wed Feb 07 2018 Fedora Release Engineering - 0:1.1.3-7
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
+
+* Wed Jul 26 2017 Fedora Release Engineering - 0:1.1.3-6
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
+* Fri Feb 10 2017 Fedora Release Engineering - 0:1.1.3-5
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
+
+* Thu Feb 04 2016 Fedora Release Engineering - 0:1.1.3-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
+
+* Wed Jun 17 2015 Fedora Release Engineering - 0:1.1.3-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
+
+* Sun Jun 08 2014 Fedora Release Engineering - 0:1.1.3-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
+
+* Fri May 09 2014 Mat Booth - 0:1.1.3-1
+- Update to latest upstream, fixes rhbz #1079510
+- Add patch for javadoc errors
+
+* Tue Mar 04 2014 Stanislav Ochotnicky - 0:1.1.2-3
+- Use Requires: java-headless rebuild (#1067528)
+
+* Sat Aug 03 2013 Fedora Release Engineering - 0:1.1.2-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_20_Mass_Rebuild
+
+* Sun Jul 14 2013 Mat Booth 0:1.1.2-1
+- Update to latest upstream, fixes rhbz #980461
+- Fix bogus date in changelog
+
+* Fri Jun 14 2013 Mikolaj Izdebski - 0:1.1.1-4
+- Update to current packaging guidelines
+
+* Thu Feb 14 2013 Fedora Release Engineering - 0:1.1.1-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_19_Mass_Rebuild
+
+* Wed Feb 06 2013 Java SIG - 0:1.1.1-2
+- Update for https://fedoraproject.org/wiki/Fedora_19_Maven_Rebuild
+- Replace maven BuildRequires with maven-local
+
+* Mon Jan 7 2013 Alexander Kurtakov 0:1.1.1-1
+- Update to latest upstream.
+
+* Tue Oct 23 2012 Mat Booth 0:1.1.0-3
+- Add maven pom and depmap rhbz #806572.
+
+* Thu Jul 19 2012 Fedora Release Engineering - 0:1.1.0-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass_Rebuild
+
+* Fri Jan 13 2012 Alexander Kurtakov 0:1.1.0-1
+- Update to upstream 1.1.0 release.
+
+* Fri Jan 13 2012 Fedora Release Engineering - 0:1.0.7-10
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_17_Mass_Rebuild
+
+* Wed Feb 09 2011 Fedora Release Engineering - 0:1.0.7-9
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_15_Mass_Rebuild
+
+* Thu Nov 4 2010 Alexander Kurtakov 0:1.0.7-8
+- Fix merge review comments bug#225956.
+
+* Wed Apr 7 2010 Alexander Kurtakov 0:1.0.7-7.4
+- Drop gcj_support.
+
+* Fri Jul 24 2009 Fedora Release Engineering - 0:1.0.7-7.3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_12_Mass_Rebuild
+
+* Wed Feb 25 2009 Fedora Release Engineering - 0:1.0.7-6.3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_11_Mass_Rebuild
+
+* Wed Jul 9 2008 Tom "spot" Callaway - 0:1.0.7-5.3
+- drop repotag
+
+* Thu May 29 2008 Tom "spot" Callaway - 0:1.0.7-5jpp.2
+- fix license tag
+
+* Tue Feb 19 2008 Fedora Release Engineering - 0:1.0.7-5jpp.1
+- Autorebuild for GCC 4.3
+
+* Tue Aug 08 2006 Vivek Lakshmanan - 0:1.0.7-4jpp.1
+- Re-sync with latest from JPP.
+- Partially adopt new naming convention.
+
+* Sat Jul 22 2006 Vivek Lakshmanan - 0:1.0.7-3jpp_2fc
+- Rebuild.
+
+* Sat Jul 22 2006 Vivek Lakshmanan - 0:1.0.7-3jpp_1fc
+- Merge with latest version from JPP.
+
+* Sat Jul 22 2006 Jakub Jelinek - 0:1.0.5-2jpp_4fc
+- Rebuilt
+
+* Wed Jul 12 2006 Jesse Keating - 0:1.0.5-2jpp_3fc
+- rebuild
+
+* Mon Mar 6 2006 Jeremy Katz - 0:1.0.5-2jpp_2fc
+- stop the scriptlet spew
+
+* Fri Dec 09 2005 Jesse Keating
+- rebuilt
+
+* Fri Mar 18 2005 Andrew Overholt 1.0.5-2jpp_1fc
+- Build into Fedora.
+- Remove Distribution and Vendor tags.
+
+* Tue Oct 19 2004 David Walluck 0:1.0.5-2jpp
+- rebuild with jdk 1.4.2
+
+* Tue Oct 19 2004 David Walluck 0:1.0.5-1jpp
+- 0.1.5
+
+* Mon Aug 23 2004 Randy Watler - 0:1.0.3-2jpp
+- Rebuild with ant-1.6.2
+
+* Wed Jan 14 2004 Ralph Apel - 0:1.0.3-1jpp
+- First build.
diff --git a/sources b/sources
new file mode 100644
index 0000000..ea02bc4
--- /dev/null
+++ b/sources
@@ -0,0 +1 @@
+f7cea898d9c0834f457f39e3a425a2cf 1.1.3.tar.gz