diff --git a/sat4j-2.3.5.tar.gz b/sat4j-2.3.5.tar.gz
new file mode 100644
index 0000000..7f6c055
Binary files /dev/null and b/sat4j-2.3.5.tar.gz differ
diff --git a/sat4j-classpath.patch b/sat4j-classpath.patch
new file mode 100644
index 0000000..219bd88
--- /dev/null
+++ b/sat4j-classpath.patch
@@ -0,0 +1,8 @@
+--- org.sat4j.pb/META-INF/MANIFEST.MF.sav	2010-03-26 15:20:38.390630122 +0200
++++ org.sat4j.pb/META-INF/MANIFEST.MF	2010-03-26 15:20:50.549378523 +0200
+@@ -21,5 +21,4 @@ Specification-Vendor: Daniel Le Berre
+ Implementation-Title: SAT4J
+ Implementation-Version: 9.9.9.token 
+ Implementation-Vendor: CRIL CNRS UMR 8188 - Universite d'Artois
+-Class-Path: org.sat4j.core.jar
+ Bundle-RequiredExecutionEnvironment: J2SE-1.5
diff --git a/sat4j.spec b/sat4j.spec
new file mode 100644
index 0000000..6aa8801
--- /dev/null
+++ b/sat4j.spec
@@ -0,0 +1,49 @@
+# should be consistent across one release
+%global build_date 20130405
+
+Name:                sat4j
+Version:             2.3.5
+Release:             1
+Summary:             A library of SAT solvers written in Java
+License:             EPL or LGPLv2
+URL:                 http://www.sat4j.org/
+#wegt https://gitlab.ow2.org/sat4j/sat4j/-/archive/2_3_5/sat4j-2_3_5.tar.gz
+#tar zxvf sat4j-2_3_5.tar.gz
+#find ./sat4j-2_3_5 -name *.jar -delete
+#mv sat4j-2_3_5 sat4j-%{version}
+#tar zcvf sat4j-%{version}.tar.gz sat4j-%{version}
+Source0:             sat4j-%{version}.tar.gz
+Patch0:              sat4j-classpath.patch
+
+BuildRequires:       ant javapackages-local
+
+BuildArch:           noarch
+
+%description
+The aim of the SAT4J library is to provide an efficient library of SAT
+solvers in Java. The SAT4J library targets first users of SAT "black
+boxes", those willing to embed SAT technologies into their application
+without worrying about the details.
+
+%prep
+%setup -q -n sat4j-%{version}
+%patch0
+
+%build
+ant -Dbuild.compiler=modern -Drelease=%{version} \
+ -Dtarget=1.5 -DBUILD_DATE=%{build_date} p2
+
+%mvn_artifact "org.ow2.sat4j:org.ow2.sat4j.core::%{version}" dist/%{version}/org.sat4j.core.jar
+%mvn_artifact "org.ow2.sat4j:org.ow2.sat4j.pb::%{version}" dist/%{version}/org.sat4j.pb.jar
+%mvn_file ":org.ow2.sat4j.core" org.sat4j.core
+%mvn_file ":org.ow2.sat4j.pb" org.sat4j.pb
+
+%install
+%mvn_install
+
+%files -f .mfiles
+# No %%doc files as the about.html is in the jar
+
+%changelog
+* Wed Aug 26 2020 wangxiao <wangxiao65@huawei.com> - 2.3.5-1
+- package init
diff --git a/sat4j.yaml b/sat4j.yaml
new file mode 100644
index 0000000..73c68d4
--- /dev/null
+++ b/sat4j.yaml
@@ -0,0 +1,5 @@
+git_url: https://gitlab.ow2.org/sat4j/sat4j
+version_control: github
+src_repo: sat4j/sat4j
+tag_prefix: ""
+seperator: "_"