diff --git a/1.1-rc5.tar.gz b/1.1-rc5.tar.gz
new file mode 100644
index 0000000..ea06ded
Binary files /dev/null and b/1.1-rc5.tar.gz differ
diff --git a/jcsp-create-tarball.sh b/jcsp-create-tarball.sh
new file mode 100644
index 0000000..38565ea
--- /dev/null
+++ b/jcsp-create-tarball.sh
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+if [ $# -ne 1 ]; then
+    echo "Usage: ./create-sources VERSION"
+    exit 1
+fi
+
+VERSION=${1}
+NAME="jcsp"
+
+wget https://github.com/codehaus/${NAME}/archive/${VERSION}.tar.gz
+tar -xf ${VERSION}.tar.gz
+rm ${VERSION}.tar.gz
+find ./${NAME}-${VERSION} -name "*.jar" -delete
+find ./${NAME}-${VERSION} -name "*.class" -delete
+# Remove unused files
+rm -Rf ./${NAME}-${VERSION}/*gradle*
+rm -Rf ./${NAME}-${VERSION}/wrapper
+rm -Rf ./${NAME}-${VERSION}/.gitignore
+rm -Rf ./${NAME}-${VERSION}/src/jcsp-demos 
+rm -Rf ./${NAME}-${VERSION}/src/org/jcsp/win32/Installing\ NT\ Services.txt
+rm -Rf ./${NAME}-${VERSION}/src/org/jcsp/win32/*.c*
+rm -Rf ./${NAME}-${VERSION}/src/org/jcsp/win32/*.h*
+rm -Rf ./${NAME}-${VERSION}/JCSP\ Networking.pdf
+
+tar cJf ${NAME}-${VERSION}-clean.tar.xz ./${NAME}-${VERSION}
\ No newline at end of file
diff --git a/jcsp.spec b/jcsp.spec
new file mode 100644
index 0000000..caa7289
--- /dev/null
+++ b/jcsp.spec
@@ -0,0 +1,79 @@
+Name:		jcsp
+Version:	1.1
+Release:	0.13
+Summary:	Communicating Sequential Processes for Java (JCSP)
+License:	LGPLv2+
+URL:		https://github.com/codehaus/jcsp
+Source0:	https://github.com/codehaus/jcsp/archive/1.1-rc5.tar.gz
+
+BuildArch:     	noarch
+BuildRequires:	maven-local junit maven-plugin-bundle osgi-core 
+
+Provides:       %{name}-javadoc = %{name}-%{release}
+Obsoletes:      %{name}-javadoc < %{name}-%{release}
+
+%description
+JCSP is an implementation of Communicating Sequential Processes 
+(CSP) for the Java programming language.
+
+%prep
+%autosetup -n %{name}-%{version}-rc5 -p1
+find ./ -name "*.jar" -delete
+find ./ -name "*.class" -delete                                               
+rm -Rf ./*gradle* ./wrapper ./.gitignore ./src/jcsp-demos 
+rm -Rf ./src/org/jcsp/win32/Installing\ NT\ Services.txt
+rm -Rf ./src/org/jcsp/win32/*.c* ./src/org/jcsp/win32/*.h*
+rm -Rf ./JCSP\ Networking.pdf
+for plugin in cobertura-maven-plugin findbugs-maven-plugin jdepend-maven-plugin \
+    rat-maven-plugin taglist-maven-plugin ; do 
+%pom_remove_plugin :$plugin
+done
+
+%pom_change_dep :org.osgi.core org.osgi:osgi.core
+
+%pom_xpath_remove "pom:project/pom:build/pom:extensions"
+
+%pom_xpath_inject "pom:project/pom:build" "
+<resources>
+  <resource>
+    <directory>src</directory>
+    <excludes>
+      <exclude>**/*.java</exclude>
+      <exclude>**/doc-files/**</exclude>
+      <exclude>**/win32/*Services.txt</exclude>
+      <exclude>**/package.html</exclude>
+    </excludes>
+  </resource>
+</resources>"
+
+%pom_xpath_remove "pom:project/pom:reporting/pom:plugins/pom:plugin[pom:artifactId='maven-javadoc-plugin']/pom:configuration/pom:excludePackageNames"
+%pom_xpath_remove "pom:project/pom:build/pom:plugins/pom:plugin[pom:artifactId='maven-bundle-plugin']/pom:configuration/pom:instructions/pom:Export-Package"
+%pom_xpath_inject "pom:project/pom:build/pom:plugins/pom:plugin[pom:artifactId='maven-bundle-plugin']/pom:configuration/pom:instructions" '
+<Export-Package>org.jcsp.*;version="${project.version}"</Export-Package>'
+
+sed -i 's|${name}|${project.name}|' pom.xml
+
+pushd src/org/jcsp
+rm -r win32 net/remote/SpawnerServiceNT.java net/tcpip/TCPIPCNSServerNT.java
+popd
+
+%mvn_file : jcsp
+
+%build
+%mvn_build -- -Dproject.build.sourceEncoding=UTF-8
+
+%install
+%mvn_install
+
+%files
+%defattr(-,root,root)
+%doc README.txt
+%license LICENCE.txt
+%{_datadir}/java/*
+%{_datadir}/javadoc/*
+%{_datadir}/maven-poms/*
+%{_datadir}/maven-metadata/*
+
+%changelog
+* Fri Feb 14 2020 gulining<gulining1@huawei.com> - 1.1-0.13
+- Package init