internal fun FileSystem.deleteIfExists(path: Path) {
  try {
    delete(path)
  } catch (fnfe: FileNotFoundException) {
    return
  }
}

/** Tolerant delete, try to clear as many files as possible even after a failure. */
internal fun FileSystem.deleteContents(directory: Path) {
  var exception: IOException? = null
  val files =
    try {
      list(directory)
    } catch (fnfe: FileNotFoundException) {
      return

        File artifactFile = new File(repository.getBasedir(), path);

        if (artifactFile.exists()) {
            if (!artifactFile.delete()) {
                throw new IOException("Failure while attempting to delete artifact " + artifactFile);
            }
        }
    }

    protected DefaultRepositorySystemSession initRepoSession() throws Exception {

                    context.failure("Failed to upgrade plugins: " + e.getMessage());
                    errorPoms.add(pomPath);
                } finally {
                    context.unindent();
                }
            }

            // Clean up temp directory
            cleanupTempDirectory(tempDir);

        } catch (Exception e) {

# Application Exception
# ---------------------
# /- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# five framework-embedded messages (don't change key names)
# - - - - - - - - - -/
errors.login.failure = Login gagal.
errors.app.illegal.transition = Transisi tidak valid. Silakan coba lagi.
errors.app.db.already.deleted = Mungkin telah dihapus oleh proses lain. Silakan coba lagi.

# Application Exception
# ---------------------
# /- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# five framework-embedded messages (don't change key names)
# - - - - - - - - - -/
errors.login.failure = 登入失敗。
errors.app.illegal.transition = 非法轉換，請重試。
errors.app.db.already.deleted = 可能已被其他程序刪除。請重試。
errors.app.db.already.updated = 可能已被其他程序更新。請重試。
errors.app.db.already.exists = 資料已存在。請重試。

character arising as a result of this License or out of the use or inability 
to use the Work (including but not limited to damages for loss of goodwill, 
work stoppage, computer failure or malfunction, or any and all other 
commercial damages or losses), even if such Contributor has been advised of 
the possibility of such damages. 

# Application Exception
# ---------------------
# /- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# five framework-embedded messages (don't change key names)
# - - - - - - - - - -/
errors.login.failure = Accesso fallito.
errors.app.illegal.transition = Transizione illegale. Riprova.
errors.app.db.already.deleted = Potrebbe essere stato eliminato da un altro processo. Riprova l'operazione.

                // ModelBuildingEx is thrown only on FATAL and ERROR severities, but we still can have WARNs
                // that may lead to unexpected build failure, log them
                if (!modelResult.getProblems().isEmpty()) {
                    List<ModelProblem> problems = modelResult.getProblems();
                    if (logger.isDebugEnabled()) {

    public Property<String> getSomeProperty() {
        return someProperty
    }
}
```

Note that managed classes like these need to be instantiated via ObjectFactory so that runtime decorations are applied. Failure to do this will cause strange usability problems in the Groovy DSL.

### New properties in an existing class

    public static final String LABELS_THUMBNAIL = "{labels.thumbnail}";

    /** The key of the message: Ignore Failure Types */
    public static final String LABELS_ignore_failure_type = "{labels.ignore_failure_type}";

    /** The key of the message: Failure Count Threshold */
    public static final String LABELS_failure_count_threshold = "{labels.failure_count_threshold}";