Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Author: tballison

tika-server/tika-server-core/src/main/java/org/apache/tika/server/core/resource/PipesParsingHelper.java

@@ -217,6 +217,7 @@ private Response buildProcessFailureResponse(PipesResult result) {
         try {
             json = mapper.writeValueAsString(node);
         } catch (Exception e) {
+            LOG.warn("Failed to serialize PipesResult error response as JSON; falling back to status-only body", e);
             json = "{\"status\":\"" + result.status().name() + "\"}";
         }
         return Response.status(mapStatusToHttpResponse(result.status()))