--- old/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/LongVector.java	2018-04-13 11:28:43.932674083 -0700
+++ new/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/LongVector.java	2018-04-13 11:28:43.648671463 -0700
@@ -403,13 +403,13 @@
 
     @Override
     public void intoByteArray(byte[] a, int ix) {
-        ByteBuffer bb = ByteBuffer.wrap(a, ix, a.length - ix);
+        ByteBuffer bb = ByteBuffer.wrap(a, ix, a.length - ix).order(ByteOrder.nativeOrder());
         intoByteBuffer(bb);
     }
 
     @Override
     public void intoByteArray(byte[] a, int ix, Mask<Long, S> m) {
-        ByteBuffer bb = ByteBuffer.wrap(a, ix, a.length - ix);
+        ByteBuffer bb = ByteBuffer.wrap(a, ix, a.length - ix).order(ByteOrder.nativeOrder());
         intoByteBuffer(bb, m);
     }
 
@@ -794,13 +794,13 @@
 
         @Override
         public LongVector<S> fromByteArray(byte[] a, int ix) {
-            ByteBuffer bb = ByteBuffer.wrap(a, ix, a.length - ix);
+            ByteBuffer bb = ByteBuffer.wrap(a, ix, a.length - ix).order(ByteOrder.nativeOrder());
             return fromByteBuffer(bb);
         }
 
         @Override
         public LongVector<S> fromByteArray(byte[] a, int ix, Mask<Long, S> m) {
-            ByteBuffer bb = ByteBuffer.wrap(a, ix, a.length - ix);
+            ByteBuffer bb = ByteBuffer.wrap(a, ix, a.length - ix).order(ByteOrder.nativeOrder());
             return fromByteBuffer(bb, m);
         }
 
@@ -825,14 +825,14 @@
 
         @Override
         public LongVector<S> fromByteBuffer(ByteBuffer bb, int ix) {
-            bb = bb.duplicate().position(ix);
+            bb = bb.duplicate().order(ByteOrder.nativeOrder()).position(ix);
             LongBuffer fb = bb.asLongBuffer();
             return op(i -> fb.get(i));
         }
 
         @Override
         public LongVector<S> fromByteBuffer(ByteBuffer bb, int ix, Mask<Long, S> m) {
-            bb = bb.duplicate().position(ix);
+            bb = bb.duplicate().order(ByteOrder.nativeOrder()).position(ix);
             LongBuffer fb = bb.asLongBuffer();
             return op(m, i -> fb.get(i));
         }