Reports multiple java.io.File attribute checks in a row, such as: These calls can be replaced with a bulk Files.readAttributes call. Usually the bulk method is more performant then multiple attribute checks.

Example:


boolean isNewFile(File file, long lastModified) throws IOException {
  return file.isFile() && file.lastModified() > lastModified;
}

After the quick-fix is applied:


boolean isNewFile(File file, long lastModified) throws IOException {
  BasicFileAttributes fileAttributes = Files.readAttributes(file.toPath(), BasicFileAttributes.class);
  return fileAttributes.isRegularFile() && fileAttributes.lastModifiedTime().toMillis() > lastModified;
}

This inspection does not show a warning if IOException is not handled in the current context, but the quick-fix is still available.

Note that the replacements are usually not completely equivalent and should be applied with care. In particular, the behavior could differ if the file does not exist at all.

This inspection only reports if the language level of the project or module is 7 or higher.

New in 2022.1