[tomcat] 03/04: Make synchronized as method assumes a lock is held on the instance

[markt]

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

commit 0a86874349c08b01a96f3c1f9f1f51dddbb74528
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Wed Sep 15 13:56:45 2021 +0100

    Make synchronized as method assumes a lock is held on the instance
---
 java/org/apache/coyote/http2/Http2UpgradeHandler.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/java/org/apache/coyote/http2/Http2UpgradeHandler.java 
b/java/org/apache/coyote/http2/Http2UpgradeHandler.java
index f28ae6d..045337a 100644
--- a/java/org/apache/coyote/http2/Http2UpgradeHandler.java
+++ b/java/org/apache/coyote/http2/Http2UpgradeHandler.java
@@ -1056,7 +1056,7 @@ class Http2UpgradeHandler extends AbstractStream 
implements InternalHttpUpgradeH
     }
 
 
-    private int allocate(AbstractStream stream, int allocation) {
+    private synchronized int allocate(AbstractStream stream, int allocation) {
         if (log.isDebugEnabled()) {
             log.debug(sm.getString("upgradeHandler.allocate.debug", 
getConnectionId(),
                     stream.getIdAsString(), Integer.toString(allocation)));

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