From 4ff2d8a293a9fb1f47192fb64340b479a76a4fda Mon Sep 17 00:00:00 2001
From: Artem Emelyanov <artem@maxiru.com>
Date: Tue, 4 Aug 2020 03:02:30 +0500
Subject: [PATCH] check if buffer data and content exists before trying get
 data from source

---
 android/src/main/java/com/RNFetchBlob/RNFetchBlobReq.java | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/android/src/main/java/com/RNFetchBlob/RNFetchBlobReq.java b/android/src/main/java/com/RNFetchBlob/RNFetchBlobReq.java
index d2f2252a2..5fde54097 100644
--- a/android/src/main/java/com/RNFetchBlob/RNFetchBlobReq.java
+++ b/android/src/main/java/com/RNFetchBlob/RNFetchBlobReq.java
@@ -600,7 +600,11 @@ private void done(Response resp) {
                     if (responseBody != null) {
                         String responseBodyString = null;
                         try {
-                            responseBodyString = responseBody.string();
+                            boolean isBufferDataExists = responseBody.source().buffer().size() > 0;
+                            boolean isContentExists = responseBody.contentLength() > 0;
+                            if (isBufferDataExists && isContentExists) {
+                                responseBodyString = responseBody.string();
+                            }
                         } catch(IOException exception) {
                             exception.printStackTrace();
                         }