[tomcat] branch main updated: Additional comment to explain choice of LinkedList

[ma...@apache.org]

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


The following commit(s) were added to refs/heads/main by this push:
     new a83fd9e607 Additional comment to explain choice of LinkedList
a83fd9e607 is described below

commit a83fd9e607c22cb0e3b27f2cebd9e9fc385eb5a2
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Wed Oct 5 18:01:49 2022 +0100

    Additional comment to explain choice of LinkedList
---
 java/org/apache/catalina/session/ManagerBase.java | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/java/org/apache/catalina/session/ManagerBase.java b/java/org/apache/catalina/session/ManagerBase.java
index d142701d43..c78b1ae4c2 100644
--- a/java/org/apache/catalina/session/ManagerBase.java
+++ b/java/org/apache/catalina/session/ManagerBase.java
@@ -120,11 +120,9 @@ public abstract class ManagerBase extends LifecycleMBeanBase implements Manager
 
     protected static final int TIMING_STATS_CACHE_SIZE = 100;
 
-    protected final Deque<SessionTiming> sessionCreationTiming =
-            new LinkedList<>();
-
-    protected final Deque<SessionTiming> sessionExpirationTiming =
-            new LinkedList<>();
+    // Use LinkedList as the Deques are initialised by filling with null
+    protected final Deque<SessionTiming> sessionCreationTiming = new LinkedList<>();
+    protected final Deque<SessionTiming> sessionExpirationTiming = new LinkedList<>();
 
     /**
      * Number of sessions that have expired.


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