Index: /trunk/build.xml
===================================================================
--- /trunk/build.xml	(revision 11005)
+++ /trunk/build.xml	(revision 11006)
@@ -419,6 +419,8 @@
                 <junit printsummary="yes" fork="true" forkmode="once">
                     <jvmarg value="-Dfile.encoding=UTF-8"/>
-                    <jvmarg value="--add-exports java.base/sun.security.util=ALL-UNNAMED" if:set="isJava9" />
-                    <jvmarg value="--add-exports java.base/sun.security.x509=ALL-UNNAMED" if:set="isJava9" />
+                    <jvmarg value="--add-exports" if:set="isJava9" />
+                    <jvmarg value="java.base/sun.security.util=ALL-UNNAMED" if:set="isJava9" />
+                    <jvmarg value="--add-exports" if:set="isJava9" />
+                    <jvmarg value="java.base/sun.security.x509=ALL-UNNAMED" if:set="isJava9" />
                     <sysproperty key="josm.home" value="${test.dir}/config/@{testfamily}-josm.home"/>
                     <sysproperty key="josm.test.data" value="${test.dir}/data"/>