@Test
 public void shouldReturnReadOnlyDerivedBuffer() {
   ByteBuf buf = Unpooled.unmodifiableBuffer(Unpooled.buffer(1));
   assertTrue(buf.duplicate() instanceof ReadOnlyByteBuf);
   assertTrue(buf.slice() instanceof ReadOnlyByteBuf);
   assertTrue(buf.slice(0, 1) instanceof ReadOnlyByteBuf);
   assertTrue(buf.duplicate() instanceof ReadOnlyByteBuf);
 }
Esempio n. 2
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 @Override
 public ByteBuf duplicate() {
   return buf.duplicate();
 }