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markt-asf pushed a commit to branch 10.1.x
in repository https://gitbox.apache.org/repos/asf/tomcat.git


The following commit(s) were added to refs/heads/10.1.x by this push:
     new 0521458bcf Fix potential concurrency issue
0521458bcf is described below

commit 0521458bcf3ddae9d812fd253ef45eaa1200c4d0
Author: Mark Thomas <[email protected]>
AuthorDate: Wed Jun 24 18:35:49 2026 +0100

    Fix potential concurrency issue
---
 java/org/apache/catalina/ha/deploy/FileMessageFactory.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/java/org/apache/catalina/ha/deploy/FileMessageFactory.java 
b/java/org/apache/catalina/ha/deploy/FileMessageFactory.java
index 41d9f220aa..d90811f9d6 100644
--- a/java/org/apache/catalina/ha/deploy/FileMessageFactory.java
+++ b/java/org/apache/catalina/ha/deploy/FileMessageFactory.java
@@ -217,7 +217,7 @@ public class FileMessageFactory {
      *
      * @return returns true if the file is complete and outputstream is 
closed, false otherwise.
      */
-    public boolean writeMessage(FileMessage msg) throws 
IllegalArgumentException, IOException {
+    public synchronized boolean writeMessage(FileMessage msg) throws 
IllegalArgumentException, IOException {
         if (!openForWrite) {
             throw new 
IllegalArgumentException(sm.getString("fileMessageFactory.cannotWrite"));
         }


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