see #20522 see #21005 - Allow security manager via sysproperty

git-svn-id: https://josm.openstreetmap.de/svn/trunk@18347 0c6e7542-c601-0410-84e7-c038aed88b3b

build.xml

@@ -486,6 +486,7 @@ Build-Date: ${build.tstamp}
 	                    <sysproperty key="josm.home" value="${test.dir}/config/@{testfamily}-josm.home"/>
 	                    <sysproperty key="josm.test.data" value="${test.dir}/data"/>
 	                    <sysproperty key="java.awt.headless" value="${test.headless}"/>
+	                    <sysproperty key="java.security.manager" value="allow"/>
 	                    <sysproperty key="glass.platform" value="Monocle"/>
 	                    <sysproperty key="monocle.platform" value="Headless"/>
 	                    <sysproperty key="prism.order" value="sw"/>