diff --git a/tools/hiddenapi/exclude.sh b/tools/hiddenapi/exclude.sh
index 73eacc0..2924e01 100755
--- a/tools/hiddenapi/exclude.sh
+++ b/tools/hiddenapi/exclude.sh
@@ -7,11 +7,9 @@
 # the team email to use in the event of this detecting an entry in a <team> package. Also
 # add <team> to the TEAMS list. 
 LIBCORE_PACKAGES="\
-  android.icu \
   android.system \
   android.test \
   com.android.bouncycastle \
-  com.android.conscrypt \
   com.android.i18n.phonenumbers \
   com.android.okhttp \
   com.sun \
@@ -24,37 +22,54 @@
   org.json \
   org.w3c.dom \
   org.xml.sax \
+  org.xmlpull.v1 \
   sun \
   "
 LIBCORE_EMAIL=libcore-team@android.com
 
+I18N_PACKAGES="\
+  android.icu \
+  "
+
+I18N_EMAIL=$LIBCORE_EMAIL
+
+CONSCRYPT_PACKAGES="\
+  com.android.org.conscrypt \
+  "
+
+CONSCRYPT_EMAIL=$LIBCORE_EMAIL
+
 # List of teams.
-TEAMS=LIBCORE
+TEAMS="LIBCORE I18N CONSCRYPT"
+
+SHA=$1
 
 # Generate the list of packages and convert to a regular expression.
 PACKAGES=$(for t in $TEAMS; do echo $(eval echo \${${t}_PACKAGES}); done)
 RE=$(echo ${PACKAGES} | sed "s/ /|/g")
-git show --name-only --pretty=format: $1 | grep "config/hiddenapi-.*txt" | while read file; do
-    ENTRIES=$(grep -E "^L(${RE})/" || true <(git show $1:$file))
+EXIT_CODE=0
+for file in $(git show --name-only --pretty=format: $SHA | grep "config/hiddenapi-.*txt"); do
+    ENTRIES=$(grep -E "^\+L(${RE})/" <(git diff ${SHA}~1 ${SHA} $file) | sed "s|^\+||" || echo)
     if [[ -n "${ENTRIES}" ]]; then
-      echo -e "\e[1m\e[31m$file $1 contains the following entries\e[0m"
+      echo -e "\e[1m\e[31m$file $SHA contains the following entries\e[0m"
       echo -e "\e[1m\e[31mfor packages that are handled using UnsupportedAppUsage. Please remove\e[0m"
       echo -e "\e[1m\e[31mthese entries and add annotations instead.\e[0m"
       # Partition the entries by team and provide contact details to aid in fixing the issue.
       for t in ${TEAMS}
       do
         PACKAGES=$(eval echo \${${t}_PACKAGES})
-        RE=$(echo ${PACKAGES} | sed "s/ /|/g")
-        TEAM_ENTRIES=$(grep -E "^L(${RE})/" <(echo "${ENTRIES}"))
+        TEAM_RE=$(echo ${PACKAGES} | sed "s/ /|/g")
+        TEAM_ENTRIES=$(grep -E "^L(${TEAM_RE})/" <(echo "${ENTRIES}") || echo)
         if [[ -n "${TEAM_ENTRIES}" ]]; then
           EMAIL=$(eval echo \${${t}_EMAIL})
-          echo -e "\e[33mContact ${EMAIL} or compat- for help with the following:\e[0m"
-          for i in ${ENTRIES}
+          echo -e "\e[33mContact ${EMAIL} for help with the following:\e[0m"
+          for i in ${TEAM_ENTRIES}
           do
             echo -e "\e[33m  ${i}\e[0m"
           done
         fi
       done
-      exit 1
+      EXIT_CODE=1
     fi
 done
+exit $EXIT_CODE