From f5b671c28c87035d0773d731343ef3c7ef448187 Mon Sep 17 00:00:00 2001
From: Gary Russell <grussell@pivotal.io>
Date: Fri, 22 Jan 2021 11:52:22 -0500
Subject: [PATCH] GH-3470: Resolve JDK8 Runtime Problem

Resolves https://github.com/spring-projects/spring-integration/issues/3470

Also fix `ByteBuffer.clear()`.
---
 .../integration/ip/tcp/connection/TcpNioConnection.java         | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/spring-integration-ip/src/main/java/org/springframework/integration/ip/tcp/connection/TcpNioConnection.java b/spring-integration-ip/src/main/java/org/springframework/integration/ip/tcp/connection/TcpNioConnection.java
index c3849d3fcf..473f6c33b6 100644
--- a/spring-integration-ip/src/main/java/org/springframework/integration/ip/tcp/connection/TcpNioConnection.java
+++ b/spring-integration-ip/src/main/java/org/springframework/integration/ip/tcp/connection/TcpNioConnection.java
@@ -458,7 +458,7 @@ public class TcpNioConnection extends TcpConnectionSupport {
 			logger.trace(getConnectionId() + " Sending " + rawBufferToSend.limit() + " to pipe");
 		}
 		this.channelInputStream.write(rawBufferToSend);
-		rawBufferToSend.clear();
+		((Buffer) rawBufferToSend).clear();
 	}
 
 	private void checkForAssembler() {