@Override
    protected <T> void mergeFrom(InputStream in, T message, Schema<T> schema)
            throws IOException
    {
        ProtostuffIOUtil.mergeFrom(in, message, schema);
    }
Protostuff impl for {@link NullArrayElementTest}.

@author David Yu
@created Sep 29, 2014
protostuff-runtime/src/test/java/io/protostuff/runtime/ProtostuffNullArrayElementTest.java