From a0808dc2cd5db376dd547263f858dd630dc6d699 Mon Sep 17 00:00:00 2001
From: edmocosta <11836452+edmocosta@users.noreply.github.com>
Date: Mon, 11 Aug 2025 16:21:10 +0200
Subject: [PATCH 1/2] Fixed concurrency issue with multiline codec and other
 grok-based plugins

---
 CHANGELOG.md                     | 3 +++
 lib/logstash/codecs/multiline.rb | 2 +-
 logstash-codec-multiline.gemspec | 2 +-
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2c1bc08..f78887b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 3.1.3
+  - Fix: concurrency issue with multiline codec and other grok-based plugins [#TBD](https://github.com/logstash-plugins/logstash-codec-multiline/pull/TBD)
+
 ## 3.1.2
   - Fix: periodic runner fails to stop and prevent pipeline shutdown [#72](https://github.com/logstash-plugins/logstash-codec-multiline/pull/72)
 
diff --git a/lib/logstash/codecs/multiline.rb b/lib/logstash/codecs/multiline.rb
index fba87f2..a933c01 100644
--- a/lib/logstash/codecs/multiline.rb
+++ b/lib/logstash/codecs/multiline.rb
@@ -5,6 +5,7 @@
 require "logstash/codecs/auto_flush"
 require 'logstash/plugin_mixins/ecs_compatibility_support'
 require 'logstash/plugin_mixins/event_support/event_factory_adapter'
+require "grok-pure" # rubygem 'jls-grok'
 
 # The multiline codec will collapse multiline messages and merge them into a
 # single event.
@@ -155,7 +156,6 @@ def initialize(*params)
   end
 
   def register
-    require "grok-pure" # rubygem 'jls-grok'
     require 'logstash/patterns/core'
 
     # Detect if we are running from a jarfile, pick the right path.
diff --git a/logstash-codec-multiline.gemspec b/logstash-codec-multiline.gemspec
index 05bef8c..315eee7 100644
--- a/logstash-codec-multiline.gemspec
+++ b/logstash-codec-multiline.gemspec
@@ -1,7 +1,7 @@
 Gem::Specification.new do |s|
 
   s.name            = 'logstash-codec-multiline'
-  s.version         = '3.1.2'
+  s.version         = '3.1.3'
   s.licenses        = ['Apache License (2.0)']
   s.summary         = "Merges multiline messages into a single event"
   s.description     = "This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program"

From 5057e3763fcbc075d2a76d9b4973a9fb3f5875fd Mon Sep 17 00:00:00 2001
From: Edmo Vamerlatti Costa <11836452+edmocosta@users.noreply.github.com>
Date: Mon, 11 Aug 2025 16:32:30 +0200
Subject: [PATCH 2/2] Update CHANGELOG.md

---
 CHANGELOG.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index f78887b..d035698 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,5 @@
 ## 3.1.3
-  - Fix: concurrency issue with multiline codec and other grok-based plugins [#TBD](https://github.com/logstash-plugins/logstash-codec-multiline/pull/TBD)
+  - Fix: concurrency issue with multiline codec and other grok-based plugins [#75](https://github.com/logstash-plugins/logstash-codec-multiline/pull/75)
 
 ## 3.1.2
   - Fix: periodic runner fails to stop and prevent pipeline shutdown [#72](https://github.com/logstash-plugins/logstash-codec-multiline/pull/72)