diff --git a/src/one/nio/mem/MappedFile.java b/src/one/nio/mem/MappedFile.java
index 1c3328b..3c9d22b 100755
--- a/src/one/nio/mem/MappedFile.java
+++ b/src/one/nio/mem/MappedFile.java
@@ -170,6 +170,12 @@ public static long map(RandomAccessFile f, int mode, long start, long size) thro
             if (map0 != null) {
                 return (long) map0.invoke(f.getChannel(), mode, start, size, false);
             }
+            // Since 19 JDK has an extra 'file descriptor' argument
+            map0 = JavaInternals.getMethod(
+                cls, "map0", FileDescriptor.class, int.class, long.class, long.class, boolean.class);
+            if (map0 != null) {
+                return (long) map0.invoke(f.getFD(), f.getChannel(), mode, start, size, false);
+            }
             throw new IllegalStateException("map0 method not found");
         } catch (InvocationTargetException e) {
             Throwable target = e.getTargetException();