Set compiler source and target to fix FTBFS

apache-commons-pool.spec

@@ -3,7 +3,7 @@
 
 Name:             apache-%{short_name}
 Version:          1.6
-Release:          20%{?dist}
+Release:          21%{?dist}
 Summary:          Apache Commons Pool Package
 License:          ASL 2.0
 URL:              http://commons.apache.org/%{base_name}/
@@ -33,7 +33,7 @@ This package contains the API documentation for %{name}.
 %mvn_file : %{short_name} %{name}
 
 %build
-%mvn_build -f -- -Dcommons.osgi.symbolicName=org.apache.commons.pool
+%mvn_build -f -- -Dcommons.osgi.symbolicName=org.apache.commons.pool -Dmaven.compiler.source=1.8 -Dmaven.compiler.target=1.8
 
 %install
 %mvn_install
@@ -46,6 +46,9 @@ This package contains the API documentation for %{name}.
 %license LICENSE.txt NOTICE.txt
 
 %changelog
+* Sat Nov 30 2019 Mat Booth <mat.booth@redhat.com> - 1.6-21
+- Set compiler source and target to fix FTBFS
+
 * Wed Jul 24 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1.6-20
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild