[tomcat] branch 9.0.x updated: Fix likely cause of some intermittent test failures

[markt]

This is an automated email from the ASF dual-hosted git repository.

markt pushed a commit to branch 9.0.x
in repository https://gitbox.apache.org/repos/asf/tomcat.git


The following commit(s) were added to refs/heads/9.0.x by this push:
     new 5d5fcb1247 Fix likely cause of some intermittent test failures
5d5fcb1247 is described below

commit 5d5fcb1247ee9131033582383d721ce360a2b7f0
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Wed Apr 26 08:38:08 2023 +0100

    Fix likely cause of some intermittent test failures
---
 java/org/apache/tomcat/websocket/WsSession.java | 14 ++++++++------
 webapps/docs/changelog.xml                      |  4 ++++
 2 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/java/org/apache/tomcat/websocket/WsSession.java 
b/java/org/apache/tomcat/websocket/WsSession.java
index 18d7704f39..d8dfb15e9c 100644
--- a/java/org/apache/tomcat/websocket/WsSession.java
+++ b/java/org/apache/tomcat/websocket/WsSession.java
@@ -660,9 +660,10 @@ public class WsSession implements Session {
         // Flush any batched messages not yet sent.
         try {
             wsRemoteEndpoint.setBatchingAllowed(false);
-        } catch (IOException e) {
-            log.warn(sm.getString("wsSession.flushFailOnClose"), e);
-            fireEndpointOnError(e);
+        } catch (Throwable t) {
+            ExceptionUtils.handleThrowable(t);
+            log.warn(sm.getString("wsSession.flushFailOnClose"), t);
+            fireEndpointOnError(t);
         }
 
         // Send the close message to the remote endpoint.
@@ -700,9 +701,10 @@ public class WsSession implements Session {
             // Flush any batched messages not yet sent.
             try {
                 wsRemoteEndpoint.setBatchingAllowed(false);
-            } catch (IOException e) {
-                log.warn(sm.getString("wsSession.flushFailOnClose"), e);
-                fireEndpointOnError(e);
+            } catch (Throwable t) {
+                ExceptionUtils.handleThrowable(t);
+                log.warn(sm.getString("wsSession.flushFailOnClose"), t);
+                fireEndpointOnError(t);
             }
 
             // Send the close message response to the remote endpoint.
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index c9f7fa6ada..1b8bb1122a 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -132,6 +132,10 @@
         <bug>66575</bug>: Avoid unchecked use of the backing array of a
         buffer provided by the user in the compression transformation. (remm)
       </fix>
+      <fix>
+        Improve exception handling when flushing batched messages during
+        WebSocket session close. (markt)
+      </fix>
     </changelog>
   </subsection>
 </section>


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