Index: trunk/build.xml
===================================================================
--- trunk/build.xml	(revision 18309)
+++ trunk/build.xml	(revision 18322)
@@ -458,4 +458,5 @@
 	                    <jvmarg value="-Dfile.encoding=UTF-8"/>
 	                    <jvmarg value="-Djava.locale.providers=SPI,JRE,CLDR" if:set="isJava9" />
+	                    <jvmarg value="-Djava.security.manager=allow" if:set="isJava17" />
 	                    <jvmarg value="-javaagent:${test.dir}/lib/jmockit.jar"/>
 	                    <jvmarg value="-Djunit.jupiter.extensions.autodetection.enabled=true"/>