assertEquals(UPPER, Ascii.toUpperCase(LOWER));
    assertSame(UPPER, Ascii.toUpperCase(UPPER));
    assertEquals(IGNORED, Ascii.toUpperCase(IGNORED));
    assertEquals("FOOBAR", Ascii.toUpperCase("FoOBAr"));
  }

  public void testCharsIgnored() {
    for (char c : IGNORED.toCharArray()) {
      String str = String.valueOf(c);
      assertEquals(str, c, Ascii.toLowerCase(c));

    // notice to self: what was this method supposed to do?
    //
    /**
     * <b>Warning</b>: ignored.
     */
    public void returnComponentLogger(String role) {}

    /**
     * <b>Warning</b>: ignored.
     */
    public void returnComponentLogger(String role, String hint) {}

    /**
     * <b>Warning</b>: ignored (always return <code>0</code>).
     */
    public int getThreshold() {
        return 0;
    }

    }

    /**
     * <b>Warning</b>: ignored (always return <code>0 == Logger.LEVEL_DEBUG</code>).
     */
    public int getThreshold() {
        return 0;
    }

    /**
     * <b>Warning</b>: ignored.
     */
    public void setThreshold(int threshold) {}

    /**
     * <b>Warning</b>: ignored (always return <code>null</code>).
     */

	if logIgnoreError(err) {
		return
	}
	for _, ignore := range ignored {
		if errors.Is(err, ignore) {
			return
		}
	}
	logIf(ctx, subsystem, err)
}

func errToEntry(ctx context.Context, subsystem string, err error, errKind ...interface{}) log.Entry {
	var l string
	if anonFlag {
		l = reflect.TypeOf(err).String()
	} else {
		l = fmt.Sprintf("%v (%T)", err, err)
	}

                      try {
                        shutDown();
                      } catch (Exception ignored) {
                        restoreInterruptIfIsInterruptedException(ignored);
                        t.addSuppressed(ignored);
                      }
                      notifyFailed(t);
                      return;
                    }
                  }

    inputFuture.cancel(true); // argument is ignored
    assertThrows(CancellationException.class, () -> resultFuture.get());
  }

  public void testFutureGetThrowsCancellationIfOutputCancelled() throws Exception {
    inputFuture.set(SLOW_OUTPUT_VALID_INPUT_DATA);
    outputFuture.cancel(true); // argument is ignored
    assertThrows(CancellationException.class, () -> resultFuture.get());
  }

    inputFuture.cancel(true); // argument is ignored
    assertThrows(CancellationException.class, () -> resultFuture.get());
  }

  public void testFutureGetThrowsCancellationIfOutputCancelled() throws Exception {
    inputFuture.set(SLOW_OUTPUT_VALID_INPUT_DATA);
    outputFuture.cancel(true); // argument is ignored
    assertThrows(CancellationException.class, () -> resultFuture.get());
  }

                    artifacts.addAll(descriptor.getExportedArtifacts());
                    packages.addAll(descriptor.getExportedPackages());
                }
            }
        } catch (IOException ignored) {
            // exports descriptors are entirely optional
        }

        return new CoreExtensionEntry(loader, artifacts, packages, null, null);
    }

    public static CoreExtensionEntry discoverFrom(

						<id>check-compatibility</id>
						<goals>
							<goal>check</goal>
						</goals>
					</execution>
				</executions>
				<configuration>
					<failOnError>false</failOnError>
					<ignored>
						<difference>
							<!-- seems to be a clirr bug that it cannot handle the different inherited 
								return types -->
							<className>**</className>
							<differenceType>7006</differenceType>

                final byte[] buf = new byte[1024];
                while ((is.read(buf)) != -1) {}
            } catch (final Exception ignored) {} finally {
                try {
                    is.close();
                } catch (final Exception ignored) {}
            }
        } catch (final Exception ignored) {}
    }

    protected void handleFileUploadException(final FileUploadException e) throws ServletException {