Set explicit Java compiler source/target levels to 1.7

apache-commons-net.spec

@@ -3,7 +3,7 @@
 
 Name:           apache-%{short_name}
 Version:        3.6
-Release:        13%{?dist}
+Release:        14%{?dist}
 Summary:        Internet protocol suite Java library
 License:        ASL 2.0
 URL:            http://commons.apache.org/%{base_name}/
@@ -43,7 +43,7 @@ rm src/test/java/org/apache/commons/net/tftp/TFTPServerPathTest.java
 %mvn_alias : org.apache.commons:%{short_name}
 
 %build
-%mvn_build -- -Dcommons.osgi.symbolicName=org.apache.commons.net
+%mvn_build -- -Dmaven.compiler.source=1.7 -Dmaven.compiler.target=1.7 -Dcommons.osgi.symbolicName=org.apache.commons.net
 
 %install
 %mvn_install
@@ -56,6 +56,9 @@ rm src/test/java/org/apache/commons/net/tftp/TFTPServerPathTest.java
 %license LICENSE.txt NOTICE.txt
 
 %changelog
+* Tue Nov 02 2021 Mikolaj Izdebski <mizdebsk@redhat.com> - 3.6-14
+- Set explicit Java compiler source/target levels to 1.7
+
 * Wed Jul 21 2021 Fedora Release Engineering <releng@fedoraproject.org> - 3.6-13
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild