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0549-jinterface-Fix-a-NullPointerException-in-A...
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File 0549-jinterface-Fix-a-NullPointerException-in-AbstractCon.patch of Package erlang
From 89b49a25a1a03281c1f7452b37184dfb4621d79f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20de=20Bretagne?= <jerome.debretagne@gmail.com> Date: Sun, 16 May 2021 10:53:00 +0200 Subject: [PATCH] jinterface: Fix a NullPointerException in AbstractConnection After a call to close(), the socket is set to null which could lead to a NullPointerException in the receive_loop when handling tick messages. End the receive_loop instead in this case. --- .../com/ericsson/otp/erlang/AbstractConnection.java | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractConnection.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractConnection.java index fb7c6869b7..7ea5d52da7 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractConnection.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/AbstractConnection.java @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2000-2017. All Rights Reserved. + * Copyright Ericsson AB 2000-2021. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -565,6 +565,11 @@ public abstract class AbstractConnection extends Thread { // received tick? send tock! if (len == 0) { synchronized (this) { + if (socket == null) { + // protect from a potential thin race when the + // connection to the remote node is closed + throw new IOException("socket was closed"); + } OutputStream out = socket.getOutputStream(); out.write(tock); out.flush(); -- 2.26.2
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