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Posted to commits@pulsar.apache.org by pe...@apache.org on 2021/06/17 10:49:20 UTC

[pulsar] branch master updated: [Transactions] Prevent NPE in case of closeAsync() without a successful execution of startAsync() (#10948)

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

penghui pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/pulsar.git


The following commit(s) were added to refs/heads/master by this push:
     new 3fd1bfd  [Transactions] Prevent NPE in case of closeAsync() without a successful execution of startAsync() (#10948)
3fd1bfd is described below

commit 3fd1bfda34d3809797d1839b7b8f239426595c7c
Author: Enrico Olivelli <eo...@gmail.com>
AuthorDate: Thu Jun 17 12:47:11 2021 +0200

    [Transactions] Prevent NPE in case of closeAsync() without a successful execution of startAsync() (#10948)
    
    Fixes #10947
    ### Motivation
    
    If the initialisation of TransactionCoordinatorClientImpl is not completed calling closeAsync will result in a NPE.
---
 .../impl/transaction/TransactionCoordinatorClientImpl.java   | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/pulsar-client/src/main/java/org/apache/pulsar/client/impl/transaction/TransactionCoordinatorClientImpl.java b/pulsar-client/src/main/java/org/apache/pulsar/client/impl/transaction/TransactionCoordinatorClientImpl.java
index f6e6b03..8db8054 100644
--- a/pulsar-client/src/main/java/org/apache/pulsar/client/impl/transaction/TransactionCoordinatorClientImpl.java
+++ b/pulsar-client/src/main/java/org/apache/pulsar/client/impl/transaction/TransactionCoordinatorClientImpl.java
@@ -134,11 +134,13 @@ public class TransactionCoordinatorClientImpl implements TransactionCoordinatorC
             LOG.warn("The transaction meta store is closing or closed, doing nothing.");
             result.complete(null);
         } else {
-            for (TransactionMetaStoreHandler handler : handlers) {
-                try {
-                    handler.close();
-                } catch (IOException e) {
-                    LOG.warn("Close transaction meta store handler error", e);
+            if (handlers != null) {
+                for (TransactionMetaStoreHandler handler : handlers) {
+                    try {
+                        handler.close();
+                    } catch (IOException e) {
+                        LOG.warn("Close transaction meta store handler error", e);
+                    }
                 }
             }
             this.handlers = null;