--- old/src/jdk.net/linux/classes/jdk/net/LinuxRdmaSocketOptions.java	2018-11-28 16:36:35.072692994 +0000
+++ new/src/jdk.net/linux/classes/jdk/net/LinuxRdmaSocketOptions.java	2018-11-28 16:36:34.696693007 +0000
@@ -30,7 +30,20 @@
 
 class LinuxRdmaSocketOptions extends PlatformRdmaSocketOptions {
 
-    public LinuxRdmaSocketOptions() { }
+    private static final UnsupportedOperationException unsupported;
+
+    private static final Void checkSupported() {
+        if (unsupported != null)
+            throw new UnsupportedOperationException(unsupported.getMessage(), unsupported);
+        else
+            return null;
+    }
+
+    public LinuxRdmaSocketOptions() {
+        this(checkSupported());
+    }
+
+    private LinuxRdmaSocketOptions(Void unused) { }
 
     @Override native void setSockOpt(int fd, int opt, int value)
             throws SocketException;
@@ -48,7 +61,14 @@
                     return null;
                 }
             });
-        init();
+        UnsupportedOperationException uoe = null;
+        try {
+            init();
+        } catch (UnsupportedOperationException e) {
+            uoe = e;
+        }
+        unsupported = uoe;
     }
-    private static native void init();
+
+    private static native void init() throws UnsupportedOperationException;
 }