Set explicit Java compiler source/target levels to 1.7

qdox.spec

@@ -4,7 +4,7 @@
 
 Name:           qdox
 Version:        2.0.0
-Release:        6%{?dist}
+Release:        7%{?dist}
 Summary:        Extract class/interface/method definitions from sources
 License:        ASL 2.0
 URL:            https://github.com/paul-hammant/qdox
@@ -72,7 +72,7 @@ jflex -d src/main/java/com/thoughtworks/qdox/parser/impl src/grammar/commentlexe
 )
 
 # Build artifact
-%mvn_build -f
+%mvn_build -f -- -Dmaven.compiler.source=1.7 -Dmaven.compiler.target=1.7
 
 # Inject OSGi manifests
 jar ufm target/%{name}-%{upstream_version}.jar %{SOURCE1}
@@ -88,6 +88,9 @@ jar ufm target/%{name}-%{upstream_version}.jar %{SOURCE1}
 %license LICENSE.txt
 
 %changelog
+* Tue Nov 02 2021 Mikolaj Izdebski <mizdebsk@redhat.com> - 2.0.0-7
+- Set explicit Java compiler source/target levels to 1.7
+
 * Fri Jul 23 2021 Fedora Release Engineering <releng@fedoraproject.org> - 2.0.0-6
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild