From 8495e7a214b1a0a84d4f53f1f7cffad0f151b8a8 Mon Sep 17 00:00:00 2001
From: michaeloffner <michaeloffner@users.noreply.github.com>
Date: Tue, 8 Oct 2024 16:41:41 +0200
Subject: [PATCH] double check existence before throwing an exception

---
 .../java/lucee/commons/io/res/type/file/FileResource.java     | 4 +++-
 loader/build.xml                                              | 2 +-
 loader/pom.xml                                                | 2 +-
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/core/src/main/java/lucee/commons/io/res/type/file/FileResource.java b/core/src/main/java/lucee/commons/io/res/type/file/FileResource.java
index 603c8858c8..f41ae93992 100644
--- a/core/src/main/java/lucee/commons/io/res/type/file/FileResource.java
+++ b/core/src/main/java/lucee/commons/io/res/type/file/FileResource.java
@@ -263,7 +263,9 @@ public OutputStream getOutputStream(boolean append) throws IOException {
 		provider.lock(this);
 		try {
 			if (!super.exists() && !super.createNewFile()) {
-				throw new IOException("Can't create file [" + this + "]");
+				// It's possible that another process (outside this JVM) has already created the file
+				// after our initial check, so we perform a double check before throwing an exception.
+				if (!super.exists()) throw new IOException("Can't create file [" + this + "]");
 			}
 			return new BufferedOutputStream(new ResourceOutputStream(this, new FileOutputStream(this, append)));
 		}
diff --git a/loader/build.xml b/loader/build.xml
index 8e3e9d2017..4c88b795dd 100644
--- a/loader/build.xml
+++ b/loader/build.xml
@@ -2,7 +2,7 @@
 <project default="core" basedir="." name="Lucee" 
   xmlns:resolver="antlib:org.apache.maven.resolver.ant">
 
-  <property name="version" value="6.0.4.9-SNAPSHOT"/>
+  <property name="version" value="6.0.4.10-SNAPSHOT"/>
 
   <taskdef uri="antlib:org.apache.maven.resolver.ant" resource="org/apache/maven/resolver/ant/antlib.xml">
     <classpath>
diff --git a/loader/pom.xml b/loader/pom.xml
index 632c475cc5..613713c546 100644
--- a/loader/pom.xml
+++ b/loader/pom.xml
@@ -3,7 +3,7 @@
 
   <groupId>org.lucee</groupId>
   <artifactId>lucee</artifactId>
-  <version>6.0.4.9-SNAPSHOT</version>
+  <version>6.0.4.10-SNAPSHOT</version>
   <packaging>jar</packaging>
 
   <name>Lucee Loader Build</name>