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  1. RESTEasy
  2. RESTEASY-1467

Memory leak using multipart provider

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Critical Critical
    • 3.1.1.Final, 3.0.21.Final
    • 3.0.19.Final
    • jaxrs
    • None

      Issue to reopen RESTEASY-773

      Usage of the multipart provider causes a memory leak as the underlying mime4j implementation uses the File#deleteOnExit hook in the class TempFileStorageProvider:

      public StorageOutputStream createStorageOutputStream() throws IOException {
        File file = File.createTempFile(prefix, suffix, directory);
        file.deleteOnExit();
 
        return new TempFileStorageOutputStream(file);
    }

      The JDK keeps a set of File references (even when already deleted) in memory until teh JVM exists. Long-running server libarreis should never use File::deleteOnExit()
      https://bugs.openjdk.java.net/browse/JDK-4872014
      https://bugs.openjdk.java.net/browse/JDK-4513817

      class DeleteOnExitHook {
    private static LinkedHashSet<String> files = new LinkedHashSet<>();

              rhn-support-asoldano Alessio Soldano
              willem.salembier@gmail.com Willem Salembier (Inactive)
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