From 27859ed20498e520a9addeaad2ca01e315c6b5f9 Mon Sep 17 00:00:00 2001
From: Niklas Keller <niklas@chrono24.com>
Date: Tue, 16 Jul 2024 16:39:46 +0200
Subject: [PATCH] Issue #12047 allow disabling opening connectors before
 starting

---
 .../java/org/eclipse/jetty/server/Server.java | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/Server.java b/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/Server.java
index 166c70b0952b..9c79d3a642ba 100644
--- a/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/Server.java
+++ b/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/Server.java
@@ -86,6 +86,7 @@ public class Server extends Handler.Wrapper implements Attributes
     private final AutoLock _dateLock = new AutoLock();
     private final MimeTypes.Mutable _mimeTypes = new MimeTypes.Mutable();
     private String _serverInfo = __serverInfo;
+    private boolean _bindEarly = true;
     private boolean _stopAtShutdown;
     private boolean _dumpAfterStart;
     private boolean _dumpBeforeStop;
@@ -276,6 +277,22 @@ public InvocationType getInvocationType()
         return type;
     }
 
+    public boolean isBindEarly()
+    {
+        return _bindEarly;
+    }
+
+    /**
+     * Allows to disable early binding of network sockets. Network sockets are bound early by default.
+     * @param bindEarly If {@code bindEarly} is {@code true} (default), network sockets are bound before
+     * starting other components. If {@code bindEarly} is {@code false}, network connectors open sockets
+     * when they're started.
+     */
+    public void setBindEarly(boolean bindEarly)
+    {
+        _bindEarly = bindEarly;
+    }
+
     public boolean isDryRun()
     {
         return _dryRun;
@@ -543,7 +560,7 @@ protected void doStart() throws Exception
             final ExceptionUtil.MultiException multiException = new ExceptionUtil.MultiException();
 
             // Open network connector to ensure ports are available
-            if (!_dryRun)
+            if (!_dryRun && _bindEarly)
             {
                 _connectors.stream().filter(NetworkConnector.class::isInstance).map(NetworkConnector.class::cast).forEach(connector ->
                 {