From a0c9fdba12f85bda71fbb7fe0562828379a41e77 Mon Sep 17 00:00:00 2001
From: Ketan Padegaonkar <KetanPadegaonkar@gmail.com>
Date: Thu, 25 Jan 2018 21:16:05 +0530
Subject: [PATCH] Fix `DelegatingServletInputStream#available`

Ensure that the method returns the correct number of bytes that can be
read without blocking

Issue: #SPR-16416
---
 .../mock/web/DelegatingServletInputStream.java               | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/spring-test/src/main/java/org/springframework/mock/web/DelegatingServletInputStream.java b/spring-test/src/main/java/org/springframework/mock/web/DelegatingServletInputStream.java
index f40e776264..42f2073b8f 100644
--- a/spring-test/src/main/java/org/springframework/mock/web/DelegatingServletInputStream.java
+++ b/spring-test/src/main/java/org/springframework/mock/web/DelegatingServletInputStream.java
@@ -87,4 +87,9 @@ public class DelegatingServletInputStream extends ServletInputStream {
 		throw new UnsupportedOperationException();
 	}
 
+	@Override
+	public int available() throws IOException {
+		return this.sourceStream.available();
+	}
+
 }