diff --git a/code/processes/crawling-process/src/main/java/nu/marginalia/crawl/retreival/fetcher/warc/WarcDigestBuilder.java b/code/processes/crawling-process/src/main/java/nu/marginalia/crawl/retreival/fetcher/warc/WarcDigestBuilder.java
index 69381c2a..b3a8ab4f 100644
--- a/code/processes/crawling-process/src/main/java/nu/marginalia/crawl/retreival/fetcher/warc/WarcDigestBuilder.java
+++ b/code/processes/crawling-process/src/main/java/nu/marginalia/crawl/retreival/fetcher/warc/WarcDigestBuilder.java
@@ -14,11 +14,6 @@ class WarcDigestBuilder {
         this.digest = MessageDigest.getInstance(digestAlgorithm);
     }
 
-    public void update(String s) {
-        byte[] bytes = s.getBytes();
-        update(bytes, bytes.length);
-    }
-
     public void update(byte[] bytes) {
         update(bytes, bytes.length);
     }
diff --git a/code/processes/crawling-process/src/main/java/nu/marginalia/crawl/retreival/fetcher/warc/WarcRecorder.java b/code/processes/crawling-process/src/main/java/nu/marginalia/crawl/retreival/fetcher/warc/WarcRecorder.java
index b9d44310..23ab4766 100644
--- a/code/processes/crawling-process/src/main/java/nu/marginalia/crawl/retreival/fetcher/warc/WarcRecorder.java
+++ b/code/processes/crawling-process/src/main/java/nu/marginalia/crawl/retreival/fetcher/warc/WarcRecorder.java
@@ -145,14 +145,16 @@ public class WarcRecorder implements AutoCloseable {
 
             WarcDigestBuilder requestDigestBuilder = new WarcDigestBuilder();
 
-            String httpRequestString = WarcProtocolReconstructor.getHttpRequestString(response.request(), requestUri);
+            byte[] httpRequestString = WarcProtocolReconstructor
+                    .getHttpRequestString(response.request(), requestUri)
+                    .getBytes();
 
             requestDigestBuilder.update(httpRequestString);
 
             WarcRequest warcRequest = new WarcRequest.Builder(requestUri)
                     .blockDigest(requestDigestBuilder.build())
                     .date(date)
-                    .body(MediaType.HTTP_REQUEST, httpRequestString.getBytes())
+                    .body(MediaType.HTTP_REQUEST, httpRequestString)
                     .concurrentTo(warcResponse.id())
                     .build();
 
@@ -322,7 +324,7 @@ public class WarcRecorder implements AutoCloseable {
         }
     }
 
-    private class ResponseDataBuffer {
+    private static class ResponseDataBuffer {
         private final byte[] data;
         private int length = 0;
         private int pos = 0;