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Showing content from https://github.com/pmd/pmd/issues/2470 below:

[java] CloseResource false positive when resource included in return value · Issue #2470 · pmd/pmd · GitHub

Affects PMD Version: ???

Rule: CloseResource

Description:

false positive when resource included in return value.

Code Sample demonstrating the issue:

Spring MVC controller method:

public ResponseEntity<StreamingResponseBody> test() throws IOException {
  final InputStream is = Files.newInputStream(Paths.get("..."));
  return ResponseBody.ok(os -> {
    try {
      is.transferTo(os);
    } finally {
      is.close();
    }
  });
}

Expected outcome:

Running PMD through: [CLI | Ant | Maven | Gradle | Designer | Other] ????


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