diff -r 251676148c62 -r d72d7d55c765 make/mapfiles/libnio/mapfile-linux
--- a/make/mapfiles/libnio/mapfile-linux	Fri Oct 20 11:08:18 2017 -0700
+++ b/make/mapfiles/libnio/mapfile-linux	Tue Oct 17 16:51:11 2017 -0700
@@ -75,6 +75,7 @@
 		Java_sun_nio_ch_FileDispatcherImpl_truncate0;
                 Java_sun_nio_ch_FileDispatcherImpl_write0;
                 Java_sun_nio_ch_FileDispatcherImpl_writev0;
+                Java_sun_nio_ch_FileDispatcherImpl_setDirect0;
                 Java_sun_nio_ch_FileKey_init;
                 Java_sun_nio_ch_FileKey_initIDs;
 		Java_sun_nio_ch_InheritedChannel_close0;