Add duplicate check to openjdk_news.sh

Related: RHEL-103211

java-21-openjdk.spec

@@ -2476,6 +2476,7 @@ exit 0
 - Update release notes to 21.0.8+2
 - Sync the copy of the portable specfile with the latest update
 - Add timezone data update check to openjdk_news.sh
+- Add duplicate check to openjdk_news.sh
 - Related: RHEL-101803
 - Related: RHEL-103211
 

scripts/openjdk_news.sh

@@ -69,12 +69,22 @@ do
     fi
 done
 
-sort "${TMPDIR}/fixes2" "${TMPDIR}/fixes3" | uniq > "${TMPDIR}/fixes"
+sort "${TMPDIR}/fixes2" "${TMPDIR}/fixes3" > "${TMPDIR}/fixes4"
+uniq "${TMPDIR}/fixes4" > "${TMPDIR}/fixes"
 rm -f "${TMPDIR}/fixes2" "${TMPDIR}/fixes3"
 
 echo "In ${TMPDIR}/fixes:"
 cat "${TMPDIR}/fixes"
 
+printf "\nChecking for duplicates...";
+if uniq -d "${TMPDIR}/fixes4" | grep 'JDK' > "${TMPDIR}/dupes"; then
+    printf "found.\nWARNING: Review the following duplicates:\n";
+    cat "${TMPDIR}/dupes";
+else
+    echo "No apparent duplicates.";
+fi
+rm -f "${TMPDIR}/fixes4";
+
 printf "\nChecking for backouts...";
 if grep -i 'backout' "${TMPDIR}/fixes" > "${TMPDIR}/backouts"; then
     printf "found.\nWARNING: Review the following backouts:\n"