From 67f5aa65e7a50f0f9ec323500042ebea4ae39ff3 Mon Sep 17 00:00:00 2001
From: Rishabh Singh <6513075+findingrish@users.noreply.github.com>
Date: Mon, 9 Sep 2024 12:07:05 +0530
Subject: [PATCH] Set response type `application/json` in CustomExceptionMapper
 to return correct failure message  (#17016)

* Add produces annotation to ParallelIndexSupervisorTask#report

* change to application/json

* Set response type in CustomExceptionMapper instead
---
 .../server/initialization/jetty/CustomExceptionMapper.java      | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/server/src/main/java/org/apache/druid/server/initialization/jetty/CustomExceptionMapper.java b/server/src/main/java/org/apache/druid/server/initialization/jetty/CustomExceptionMapper.java
index 2b1b8351aed..18148b0c348 100644
--- a/server/src/main/java/org/apache/druid/server/initialization/jetty/CustomExceptionMapper.java
+++ b/server/src/main/java/org/apache/druid/server/initialization/jetty/CustomExceptionMapper.java
@@ -23,6 +23,7 @@ package org.apache.druid.server.initialization.jetty;
 import com.fasterxml.jackson.databind.JsonMappingException;
 import com.google.common.collect.ImmutableMap;
 
+import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
 import javax.ws.rs.ext.ExceptionMapper;
 import javax.ws.rs.ext.Provider;
@@ -38,6 +39,7 @@ public class CustomExceptionMapper implements ExceptionMapper<JsonMappingExcepti
                        "error",
                        exception.getMessage() == null ? "unknown json mapping exception" : exception.getMessage()
                    ))
+                   .type(MediaType.APPLICATION_JSON)
                    .build();
   }
 }