[pulsar] 03/07: fix #10781 Build failure because of spotbugs (#10792)

[penghui]

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

penghui pushed a commit to branch branch-2.8
in repository https://gitbox.apache.org/repos/asf/pulsar.git

commit 706f138079026ff778855eb0a8020a1923af0666
Author: Jason918 <jason....@qq.com>
AuthorDate: Sat Jun 26 03:25:59 2021 +0800

    fix #10781 Build failure because of spotbugs (#10792)
    
    Fixes #10781
    
    ### Motivation
    
    solving build failure case causing by spotbugs issue which is explained in 
#10781
    
    ### Modifications
    
    Small modification: add a null check in BKStateStoreImpl.java:[line 175]
    
    (cherry picked from commit 296ba767079d3e9a1687dfa409989dd83abff445)
---
 .../org/apache/pulsar/functions/instance/state/BKStateStoreImpl.java  | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git 
a/pulsar-functions/instance/src/main/java/org/apache/pulsar/functions/instance/state/BKStateStoreImpl.java
 
b/pulsar-functions/instance/src/main/java/org/apache/pulsar/functions/instance/state/BKStateStoreImpl.java
index 8714d2c..1ffd8f7 100644
--- 
a/pulsar-functions/instance/src/main/java/org/apache/pulsar/functions/instance/state/BKStateStoreImpl.java
+++ 
b/pulsar-functions/instance/src/main/java/org/apache/pulsar/functions/instance/state/BKStateStoreImpl.java
@@ -172,7 +172,9 @@ public class BKStateStoreImpl implements DefaultStateStore {
                         }
                         return null;
                     } finally {
-                        ReferenceCountUtil.safeRelease(data);
+                        if (data != null) {
+                            ReferenceCountUtil.safeRelease(data);
+                        }
                     }
                 }
         );