.diff

diff --git a/core/src/main/java/org/jruby/util/io/FilenoUtil.java b/core/src/main/java/org/jruby/util/io/FilenoUtil.java
index 573ca51348..87a12b918b 100644
--- a/core/src/main/java/org/jruby/util/io/FilenoUtil.java
+++ b/core/src/main/java/org/jruby/util/io/FilenoUtil.java
@@ -137,9 +137,10 @@ public class FilenoUtil {
                 selChImpl = Class.forName("sun.nio.ch.SelChImpl");
                 try {
                     getFD = selChImpl.getMethod("getFD");
-                    if (!Modules.trySetAccessible(getFD)) {
-                        getFD = null;
-                    }
+//                    if (!Modules.trySetAccessible(getFD)) {
+//                        getFD = null;
+//                    }
+                    getFD.setAccessible(true);
                 } catch (Exception e) {
                     getFD = null;
                 }
@@ -156,9 +157,10 @@ public class FilenoUtil {
                 fileChannelImpl = Class.forName("sun.nio.ch.FileChannelImpl");
                 try {
                     fd = fileChannelImpl.getDeclaredField("fd");
-                    if (!Modules.trySetAccessible(fd)) {
-                        fd = null;
-                    }
+//                    if (!Modules.trySetAccessible(fd)) {
+//                        fd = null;
+//                    }
+                    fd.setAccessible(true);
                 } catch (Exception e) {
                     fd = null;
                 }
@@ -172,9 +174,10 @@ public class FilenoUtil {
             Field ffd;
             try {
                 ffd = FileDescriptor.class.getDeclaredField("fd");
-                if (!Modules.trySetAccessible(ffd)) {
-                    ffd = null;
-                }
+//                if (!Modules.trySetAccessible(ffd)) {
+//                    ffd = null;
+//                }
+                ffd.setAccessible(true);
             } catch (Exception e) {
                 ffd = null;
             }

command_line.txt

[] ~/projects/jruby $ JAVA_OPTS="--add-exports java.base/sun.nio.ch=org.jruby.dist" jruby open3_thing/freeze.rb 
jruby 9.2.7.0-SNAPSHOT (2.5.3) 2019-04-03 705834d OpenJDK 64-Bit Server VM 11.0.2+9 on 11.0.2+9 +jit [darwin-x86_64]
{:capture=>"hello, world", :status=>#<Process::Status: pid 7852 exit 0>}

[] ~/projects/jruby $