Set explicit Java compiler source/target levels to 1.7

maven-plugin-testing.spec

@@ -2,7 +2,7 @@
 
 Name:           maven-plugin-testing
 Version:        3.3.0
-Release:        21%{?dist}
+Release:        22%{?dist}
 Summary:        Maven Plugin Testing
 License:        ASL 2.0
 URL:            http://maven.apache.org/plugin-testing/
@@ -61,7 +61,7 @@ The Maven Plugin Testing Harness provides mechanisms to manage tests on Mojo.
 %mvn_alias : org.apache.maven.shared:
 
 %build
-%mvn_build -s
+%mvn_build -s -- -Dmaven.compiler.source=1.7 -Dmaven.compiler.target=1.7
 
 %install
 %mvn_install
@@ -73,6 +73,9 @@ The Maven Plugin Testing Harness provides mechanisms to manage tests on Mojo.
 %doc LICENSE NOTICE
 
 %changelog
+* Tue Nov 02 2021 Mikolaj Izdebski <mizdebsk@redhat.com> - 3.3.0-22
+- Set explicit Java compiler source/target levels to 1.7
+
 * Thu Jul 22 2021 Fedora Release Engineering <releng@fedoraproject.org> - 3.3.0-21
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild