)]}'
{
  "commit": "21dd973b3ec7a05c0b48e7780de5b6c6a3950b8b",
  "tree": "f9edf490c8c3f23c6147c34c7581cb0fce1ce337",
  "parents": [
    "9ca64edcbdfed64ffdde5505304111348a53b79b"
  ],
  "author": {
    "name": "Googler",
    "email": "noreply@google.com",
    "time": "Mon Mar 15 08:41:29 2021 -0700"
  },
  "committer": {
    "name": "Copybara-Service",
    "email": "copybara-worker@google.com",
    "time": "Mon Mar 15 08:42:42 2021 -0700"
  },
  "message": "Prevent NullPointerException when mainArtifact is not defined\n\nI failed to write unit tests to reproduce the NPE.\nThis requires more investigation.\n\nPiperOrigin-RevId: 362948108\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "c20e6510cbbdcbb9948a5c8e7ed39ec923e07908",
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      "old_path": "src/main/java/com/google/devtools/build/lib/rules/python/PyCommon.java",
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}