diff --git a/java9.sh b/java9.sh
index ac52f670ba..6f8ddb265f 100755
--- a/java9.sh
+++ b/java9.sh
@@ -15,8 +15,6 @@ ant -version
 # disable file-leak-detector:	-Dfile.leak.detector=-Da=b \
 # option to try to avoid sigsev:    -Djava9addarg=-XX:-PartialPeelLoop \
 
-# disabled jacoco until we use 0.7.8, see https://github.com/jacoco/jacoco/pull/434
-
 ant  \
     -Duser.language=en \
     -Duser.country=US \
@@ -24,7 +22,7 @@ ant  \
     -Djava9addmods=-addmods \
     -Djava9addmodsvalue=java.xml.bind \
 	-Djava.locale.providers=JRE,CLDR \
-	-Dcoverage.enabled=false \
+	-Dcoverage.enabled=true \
 	-Dorg.apache.poi.util.POILogger=org.apache.poi.util.NullLogger \
 	-Dhalt.on.test.failure=false \
 	$*