Index: trunk/build.xml
===================================================================
--- trunk/build.xml	(revision 12875)
+++ trunk/build.xml	(revision 12890)
@@ -455,5 +455,5 @@
                     <jvmarg value="-Dfile.encoding=UTF-8"/>
                     <jvmarg value="--add-modules" if:set="isJava9" />
-                    <jvmarg value="java.se.ee" if:set="isJava9" />
+                    <jvmarg value="java.activation,java.se.ee" if:set="isJava9" />
                     <jvmarg value="--add-exports" if:set="isJava9" />
                     <jvmarg value="java.base/sun.security.util=ALL-UNNAMED" if:set="isJava9" />