Move testMultiTableLock To TestLockFactoryBase.

Author: slfan1989

flink/v2.0/flink/src/main/java/org/apache/iceberg/flink/maintenance/operator/DeleteFilesProcessor.java

@@ -32,7 +32,6 @@
 import org.apache.iceberg.io.BulkDeletionFailureException;
 import org.apache.iceberg.io.FileIO;
 import org.apache.iceberg.io.SupportsBulkOperations;
-import org.apache.iceberg.relocated.com.google.common.annotations.VisibleForTesting;
 import org.apache.iceberg.relocated.com.google.common.base.Preconditions;
 import org.apache.iceberg.relocated.com.google.common.collect.Sets;
 import org.slf4j.Logger;
@@ -133,17 +132,14 @@ private void deleteFiles() {
     }
   }
 
-  @VisibleForTesting
   public Counter getFailedCounter() {
     return failedCounter;
   }
 
-  @VisibleForTesting
   public Counter getSucceededCounter() {
     return succeededCounter;
   }
 
-  @VisibleForTesting
   public Histogram getDeleteFileTimeMsHistogram() {
     return deleteFileTimeMsHistogram;
   }

flink/v2.0/flink/src/test/java/org/apache/iceberg/flink/maintenance/operator/TestDeleteFilesProcessor.java

@@ -204,7 +204,7 @@ void testConcurrentDelete() throws Exception {
               try {
                 testHarness.processElement(file, System.currentTimeMillis());
               } catch (Exception e) {
-                e.printStackTrace();
+                // do nothing
               }
             });
       }