Index: /trunk/build.xml
===================================================================
--- /trunk/build.xml	(revision 10261)
+++ /trunk/build.xml	(revision 10262)
@@ -390,4 +390,5 @@
                     <jvmarg value="-XaddExports:java.base/sun.security.util=ALL-UNNAMED" if:set="isJava9" />
                     <jvmarg value="-XaddExports:java.base/sun.security.x509=ALL-UNNAMED" if:set="isJava9" />
+                    <jvmarg value="-XaddExports:jdk.xml.bind/javax.xml.bind=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"/>