Missing AccessController.doPrivileged() calls in DefaultConfiguration cause Java 2 Security errors.

Caused by: java.security.AccessControlException: Access denied ("java.util.PropertyPermission" "java.io.tmpdir" "read")
	at java.base/java.security.AccessController.throwACE(AccessController.java:176)
	at java.base/java.security.AccessController.checkPermissionHelper(AccessController.java:238)
	at java.base/java.security.AccessController.checkPermission(AccessController.java:385)
	at java.base/java.lang.SecurityManager.checkPermission(SecurityManager.java:322)
	at java.base/java.lang.SecurityManager.checkPropertyAccess(SecurityManager.java:1066)
	at java.base/java.lang.System.getProperty(System.java:506)
	at java.base/java.lang.System.getProperty(System.java:475)
	at org.jboss.resteasy.spi.config.DefaultConfiguration$Resolver.apply(DefaultConfiguration.java:169)
	at org.jboss.resteasy.spi.config.DefaultConfiguration$Resolver.apply(DefaultConfiguration.java:160)
	at org.jboss.resteasy.spi.config.DefaultConfiguration.getOptionalValue(DefaultConfiguration.java:99)
	at org.jboss.resteasy.client.jaxrs.engines.ManualClosingApacheHttpClient43Engine.<init>(ManualClosingApacheHttpClient43Engine.java:120)
	at org.jboss.resteasy.client.jaxrs.engines.ApacheHttpClient43Engine.<init>(ApacheHttpClient43Engine.java:29)
	at org.jboss.resteasy.client.jaxrs.engines.ClientHttpEngineBuilder43.createEngine(ClientHttpEngineBuilder43.java:265)
	at org.jboss.resteasy.client.jaxrs.engines.ClientHttpEngineBuilder43.build(ClientHttpEngineBuilder43.java:210)
	... 39 more