)]}'
{
  "commit": "91b4a2ca418ecb47cb8871d97588b19444337eb4",
  "tree": "37c49ed32f8e947b305bd8b16b29e2c02f7b12b5",
  "parents": [
    "19a3ff5661590e5f294bb77453ce45a416121f7d"
  ],
  "author": {
    "name": "Hélder Gregório",
    "email": "helder.gregorio@dremio.com",
    "time": "Wed Sep 09 21:41:27 2026 -0700"
  },
  "committer": {
    "name": "GitHub",
    "email": "noreply@github.com",
    "time": "Thu Sep 10 13:41:27 2026 +0900"
  },
  "message": "GH-1067: Close cached HDFS FileSystem instances (#1141)\n\n## What\u0027s Changed\n\n- This PR fixes JVM shutdown hangs after reading HDFS datasets through\nArrow Java.\n- FileSystemDatasetFactory now tracks hdfs:// URIs used to create the\nfactory. On close(), after releasing the native dataset factory, it\nbest-effort closes the matching Hadoop FileSystem instances.\n- The Hadoop cleanup is done via reflection so Arrow Java does not add a\nproduction dependency on Hadoop. Non-HDFS URIs are ignored.\n\nCloses #1067 .",
  "tree_diff": [
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      "new_path": "dataset/src/test/java/org/apache/arrow/dataset/file/TestHdfsFileSystemCleanup.java"
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}