[GitHub] [hadoop] aajisaka commented on a diff in pull request #4446: HADOOP-18294.Ensure build folder exists before writing checksum file.…

[GitBox <gi...@apache.org>]

aajisaka commented on code in PR #4446:
URL: https://github.com/apache/hadoop/pull/4446#discussion_r901295661


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hadoop-maven-plugins/src/main/java/org/apache/hadoop/maven/plugin/protoc/ProtocRunner.java:
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@@ -172,6 +172,10 @@ private long computeChecksum(File file) throws IOException {
 
     public void writeChecksums() throws IOException {
       ObjectMapper mapper = new ObjectMapper();
+      boolean folderCreated = checksumFile.getParentFile().mkdirs();
+      if (!folderCreated) {
+        throw new IOException("Unable to create path");
+      }

Review Comment:
   If the parent already exists and it is directory, `folderCreated` will be false and throw IOException. We need to first check if the parent is directory.



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