Merge pull request #408 from jmtd/OPENJDK-2384-singleton-jdk-alternat…

…ives

Openjdk 2384 singleton jdk alternatives

modules/singleton-jdk/configure.sh

@@ -14,3 +14,11 @@ fi
 # Clean up any java-* packages that have been installed that do not match
 # our stated JAVA_VERSION-JAVA_VENDOR (e.g.: 11-openjdk; 1.8.0-openj9)
 rpm -e --nodeps $(rpm -qa java-* | grep -v "^java-${JAVA_VERSION}-${JAVA_VENDOR}")
+
+# workaround for <https://issues.redhat.com/browse/RHEL-3437>
+# The alternative link groups touched here need to match up with those set in
+# modules/jdk/*/configure.sh
+_arch="$(uname -i)"
+for alt in java javac java_sdk_openjdk jre_openjdk; do
+  alternatives --set "$alt" "java-${JAVA_VERSION}-${JAVA_VENDOR}.${_arch}"
+done