diff --git a/.assertj-core.metadata b/.assertj-core.metadata
new file mode 100644
index 0000000..98b63fe
--- /dev/null
+++ b/.assertj-core.metadata
@@ -0,0 +1 @@
+5fa4ca5e42c74187e2551078f2d54edaef2dd438 SOURCES/assertj-core-3.19.0.tar.gz
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c6b5e21
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+SOURCES/assertj-core-3.19.0.tar.gz
diff --git a/SPECS/assertj-core.spec b/SPECS/assertj-core.spec
new file mode 100644
index 0000000..d7decf7
--- /dev/null
+++ b/SPECS/assertj-core.spec
@@ -0,0 +1,172 @@
+%bcond_with bootstrap
+
+Name: assertj-core
+Version: 3.19.0
+Release: 5%{?dist}
+Summary: Library of assertions similar to fest-assert
+License: ASL 2.0
+URL: https://joel-costigliola.github.io/assertj/
+Source0: https://github.com/joel-costigliola/assertj-core/archive/assertj-core-%{version}.tar.gz
+
+BuildArch: noarch
+
+BuildRequires: maven-local
+%if %{with bootstrap}
+BuildRequires: javapackages-bootstrap
+%else
+BuildRequires: mvn(junit:junit)
+BuildRequires: mvn(net.bytebuddy:byte-buddy)
+BuildRequires: mvn(org.hamcrest:hamcrest)
+BuildRequires: mvn(org.junit.jupiter:junit-jupiter-api)
+BuildRequires: mvn(org.opentest4j:opentest4j)
+%endif
+
+%description
+A rich and intuitive set of strongly-typed assertions to use for unit testing
+(either with JUnit or TestNG).
+
+%package javadoc
+Summary: API documentation for %{name}
+
+%description javadoc
+This package provides API documentation for %{name}.
+
+%prep
+%setup -q -n assertj-core-assertj-core-%{version}
+
+%pom_remove_parent
+%pom_xpath_inject "pom:project" "org.assertj"
+%pom_xpath_remove "pom:release"
+
+%pom_remove_plugin :maven-invoker-plugin
+%pom_remove_plugin :maven-javadoc-plugin
+%pom_remove_plugin :maven-shade-plugin
+%pom_remove_plugin :maven-dependency-plugin
+%pom_remove_plugin :maven-enforcer-plugin
+%pom_remove_plugin :jacoco-maven-plugin
+%pom_remove_plugin :yuicompressor-maven-plugin
+%pom_remove_plugin :bnd-maven-plugin
+%pom_remove_plugin :bnd-resolver-maven-plugin
+%pom_remove_plugin :maven-antrun-plugin
+%pom_remove_plugin :maven-jar-plugin
+%pom_remove_plugin :bnd-testing-maven-plugin
+
+# package org.mockito.internal.util.collections does not exist
+rm -rf ./src/test/java/org/assertj/core/error/ShouldContainString_create_Test.java
+
+%pom_remove_dep :memoryfilesystem
+rm -r src/test/java/org/assertj/core/internal/{Paths*.java,paths}
+
+%build
+%mvn_build -f -- -Dproject.build.sourceEncoding=UTF-8 -P \!java9+
+
+%install
+%mvn_install
+
+%files -f .mfiles
+%doc README.md CONTRIBUTING.md
+%license LICENSE.txt
+
+%files javadoc -f .mfiles-javadoc
+%doc CONTRIBUTING.md
+%license LICENSE.txt
+
+%changelog
+* Mon Aug 09 2021 Mohan Boddu - 3.19.0-5
+- Rebuilt for IMA sigs, glibc 2.34, aarch64 flags
+ Related: rhbz#1991688
+
+* Wed Jun 09 2021 Mikolaj Izdebski - 3.19.0-4
+- Rebuild to workaround DistroBaker issue
+
+* Tue Jun 08 2021 Mikolaj Izdebski - 3.19.0-3
+- Bootstrap Maven for CentOS Stream 9
+
+* Mon May 17 2021 Mikolaj Izdebski - 3.19.0-2
+- Bootstrap build
+- Non-bootstrap build
+
+* Tue Jan 26 2021 Fedora Release Engineering - 3.17.2-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
+* Tue Jan 26 2021 Marian Koncek - 3.19.0-1
+- Update to upstream version 3.19.0
+
+* Wed Jan 20 2021 Marian Koncek - 3.18.1-1
+- Update to upstream version 3.18.1
+
+* Fri Oct 16 2020 Fabio Valentini - 3.17.2-1
+- Update to version 3.17.2.
+
+* Mon Sep 21 2020 Marian Koncek - 3.17.2-1
+- Update to upstream version 3.17.2
+
+* Sun Aug 23 2020 Fabio Valentini - 3.17.0-1
+- Update to version 3.17.0.
+
+* Wed Jul 29 2020 Marian Koncek - 3.16.1-1
+- Update to upstream version 3.16.1
+
+* Mon Jul 27 2020 Fedora Release Engineering - 3.16.1-5
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
+
+* Tue Jul 21 2020 Markku Korkeala - 3.16.1-4
+- Remove profiles from pom.xml.
+
+* Fri Jul 10 2020 Jiri Vanek - 3.16.1-3
+- Rebuilt for JDK-11, see https://fedoraproject.org/wiki/Changes/Java11
+
+* Wed May 13 2020 Fabio Valentini - 3.16.1-2
+- Fix artifact generation by removing antrun plugin again.
+
+* Tue May 12 2020 Fabio Valentini - 3.16.1-1
+- Update to version 3.16.1.
+
+* Tue Jan 28 2020 Fedora Release Engineering - 3.8.0-7
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
+
+* Wed Nov 20 2019 Marian Koncek - 3.14.0-1
+- Update to upstream version 3.14.0
+
+* Tue Nov 05 2019 Mikolaj Izdebski - 3.13.2-2
+- Mass rebuild for javapackages-tools 201902
+
+* Fri Sep 13 2019 Fabio Valentini - 3.8.0-6
+- Remove dependency on memoryfilesystem.
+
+* Tue Aug 06 2019 Marian Koncek - 3.13.2-1
+- Update to upstream version 3.13.2
+
+* Wed Jul 24 2019 Fedora Release Engineering - 3.8.0-5
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
+
+* Thu Jun 06 2019 Marian Koncek - 3.12.2-1
+- Update to upstream version 3.12.2
+
+* Fri May 24 2019 Mikolaj Izdebski - 3.8.0-3
+- Mass rebuild for javapackages-tools 201901
+
+* Thu Jan 31 2019 Fedora Release Engineering - 3.8.0-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild
+
+* Thu Jul 12 2018 Fedora Release Engineering - 3.8.0-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
+
+* Wed Feb 07 2018 Fedora Release Engineering - 3.8.0-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
+
+* Fri Jul 28 2017 Mat Booth - 3.8.0-1
+- Update to latest version of assertj
+- Disable tests due to missing deps in Fedora
+
+* Wed Jul 26 2017 Fedora Release Engineering - 2.2.0-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
+* Mon Feb 06 2017 Michael Simacek - 2.2.0-3
+- Add conditional for memoryfilesystem
+
+* Wed Feb 03 2016 Fedora Release Engineering - 2.2.0-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
+
+* Wed Sep 02 2015 Roman Mohr - 2.2.0-1
+- Initial packaging