Temporarily build with OpenJDK 8

Upstream ticket that tracks openJDK 11 support is:
https://dev.entrouvert.org/issues/45876

lasso.spec

@@ -59,7 +59,7 @@
 Summary: Liberty Alliance Single Sign On
 Name: lasso
 Version: 2.6.1
-Release: 6%{?dist}
+Release: 7%{?dist}
 License: GPLv2+
 URL: http://lasso.entrouvert.org/
 Source: http://dev.entrouvert.org/lasso/lasso-%{version}.tar.gz
@@ -118,7 +118,7 @@ Perl language bindings for the lasso (Liberty Alliance Single Sign On) library.
 %if %{with_java}
 %package -n java-%{name}
 Summary: Liberty Alliance Single Sign On (lasso) Java bindings
-BuildRequires: java-devel
+Buildrequires: java-1.8.0-openjdk-devel
 BuildRequires: jpackage-utils
 Requires: java-headless
 Requires: jpackage-utils
@@ -196,6 +196,7 @@ sed -i -E -e '/^#![[:blank:]]*(\/usr\/bin\/env[[:blank:]]+python[^3]?\>)|(\/usr\
   `grep -r -l -E '^#![[:blank:]]*(/usr/bin/python[^3]?)|(/usr/bin/env[[:blank:]]+python[^3]?)' *`
 
 %build
+export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk
 ./autogen.sh
 %if 0%{?with_python2}
   %configure %{configure_args} --with-python=%{__python2}
@@ -306,6 +307,10 @@ rm -fr %{buildroot}%{_defaultdocdir}/%{name}
 %endif
 
 %changelog
+* Thu Aug 13 2020 Jakub Hrozek <jhrozek@redhat.com> - 2.6.1-7
+- Temporarily build with OpenJDK 8
+- upstream ticket for OpenJDK11 support: https://dev.entrouvert.org/issues/45876
+
 * Fri Aug 07 2020 Jeff Law <law@redhat.com> - 2.6.1-6
 - Revert last change.  I lost the patchfile and I can't reproduce the gcc-11
   problem which almost certainly prompted it