set candidate methods accessible

Author: jtnelson

src/main/java/com/cinchapi/etl/TransformerSerializationFactory.java

@@ -206,6 +206,7 @@ public ByteBuffer serialize(Transformer transformer) {
                         .collect(Collectors.toList());
                 Method method = null;
                 for (Method candidate : candidates) {
+                    candidate.setAccessible(true);
                     Class<? extends Transformer> clazz = lambdas
                             .get(candidate.getName());
                     if(clazz == null) {