Static temporary file specification for the hg plugin causes builds to hang on checkouts

public final static SecureTemporaryFiles.TemporaryFileSpec TEMPORARY_FILE_SPEC =
            SecureTemporaryFiles.builder()
                    .setPrefix("bambooHg")
                    .setSuffix(".tmp")
                    .useShortDirectoryName()
                    .failWhenPermissionsNotSet()
                    .build();

    @NotNull
    File createTmpFileWithKey() throws IOException, InterruptedException
    {
        final File file = SecureTemporaryFiles.create(TEMPORARY_FILE_SPEC);

        FileUtils.writeStringToFile(file, substitutedAccessData.getSshKey());
        return file;
    }