[tomcat] branch 9.0.x updated: Restore try catch around Poller.events

[remm]

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

remm 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 981a5f2  Restore try catch around Poller.events
981a5f2 is described below

commit 981a5f287720abeb67c3ae9f4336ec8da4f71f0f
Author: remm <r...@apache.org>
AuthorDate: Tue Oct 27 16:52:26 2020 +0100

    Restore try catch around Poller.events
    
    This is a regression caused when the Poller.events method was
    refactored.
---
 java/org/apache/tomcat/util/net/NioEndpoint.java | 8 ++++----
 webapps/docs/changelog.xml                       | 5 +++++
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/java/org/apache/tomcat/util/net/NioEndpoint.java 
b/java/org/apache/tomcat/util/net/NioEndpoint.java
index d7afa0e..827fa08 100644
--- a/java/org/apache/tomcat/util/net/NioEndpoint.java
+++ b/java/org/apache/tomcat/util/net/NioEndpoint.java
@@ -720,15 +720,15 @@ public class NioEndpoint extends 
AbstractJsseEndpoint<NioChannel,SocketChannel>
                         }
                         break;
                     }
+                    // Either we timed out or we woke up, process events first
+                    if (keyCount == 0) {
+                        hasEvents = (hasEvents | events());
+                    }
                 } catch (Throwable x) {
                     ExceptionUtils.handleThrowable(x);
                     log.error(sm.getString("endpoint.nio.selectorLoopError"), 
x);
                     continue;
                 }
-                // Either we timed out or we woke up, process events first
-                if (keyCount == 0) {
-                    hasEvents = (hasEvents | events());
-                }
 
                 Iterator<SelectionKey> iterator =
                     keyCount > 0 ? selector.selectedKeys().iterator() : null;
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index ddd15a7..0689c1d 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -107,6 +107,11 @@
         <bug>63362</bug>: Add collection of statistics for HTTP/2, WebSocket 
and
         connections upgraded via the HTTP upgrade mechanism. (markt)
       </fix>
+      <fix>
+        Restore exception catch around Poller.events, as it would cause
+        the NIO poller thread to exit. This is a regression caused when
+        the Poller.events method was refactored. (remm)
+      </fix>
     </changelog>
   </subsection>
   <subsection name="Jasper">


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