(parquet-mr) branch master updated: PARQUET-2394: Use `computeIfAbsent` in `MessageColumnIO` (#1217)

[fokko]

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The following commit(s) were added to refs/heads/master by this push:
     new 3df625e4c PARQUET-2394: Use `computeIfAbsent` in `MessageColumnIO` 
(#1217)
3df625e4c is described below

commit 3df625e4cc2d147e704bdefe8a91621add19e43d
Author: Fokko Driesprong <fo...@apache.org>
AuthorDate: Mon Dec 4 11:48:30 2023 +0100

    PARQUET-2394: Use `computeIfAbsent` in `MessageColumnIO` (#1217)
    
    * PARQUET-2394: Use `computeIfAbsent` in `MessageColumnIO`
    
    * Fix identation
---
 .../src/main/java/org/apache/parquet/io/MessageColumnIO.java       | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git 
a/parquet-column/src/main/java/org/apache/parquet/io/MessageColumnIO.java 
b/parquet-column/src/main/java/org/apache/parquet/io/MessageColumnIO.java
index 5f783ca97..bc95a3357 100644
--- a/parquet-column/src/main/java/org/apache/parquet/io/MessageColumnIO.java
+++ b/parquet-column/src/main/java/org/apache/parquet/io/MessageColumnIO.java
@@ -227,12 +227,7 @@ public class MessageColumnIO extends GroupColumnIO {
     }
 
     private List<ColumnWriter> getLeafWriters(GroupColumnIO group) {
-      List<ColumnWriter> writers = groupToLeafWriter.get(group);
-      if (writers == null) {
-        writers = new ArrayList<>();
-        groupToLeafWriter.put(group, writers);
-      }
-      return writers;
+      return groupToLeafWriter.computeIfAbsent(group, k -> new ArrayList<>());
     }
 
     public MessageColumnIORecordConsumer(ColumnWriteStore columns) {