[HUDI-2985] Shade jackson for hudi flink bundle jar (#4284)

hudi-flink/src/main/java/org/apache/hudi/sink/StreamWriteOperatorCoordinator.java

@@ -377,6 +377,9 @@ public class StreamWriteOperatorCoordinator
     if (allEventsReceived()) {
       // start to commit the instant.
       commitInstant(this.instant);
+      // The executor thread inherits the classloader of the #handleEventFromOperator
+      // caller, which is a AppClassLoader.
+      Thread.currentThread().setContextClassLoader(getClass().getClassLoader());
       // sync Hive if is enabled in batch mode.
       syncHiveIfEnabled();
     }

packaging/hudi-flink-bundle/pom.xml

@@ -227,6 +227,10 @@
                   <pattern>com.esotericsoftware.kryo.</pattern>
                   <shadedPattern>${flink.bundle.shade.prefix}com.esotericsoftware.kryo.</shadedPattern>
                 </relocation>
+                <relocation>
+                  <pattern>com.fasterxml.jackson.</pattern>
+                  <shadedPattern>${flink.bundle.shade.prefix}com.fasterxml.jackson.</shadedPattern>
+                </relocation>
               </relocations>
               <filters>
                 <filter>