public abstract K getKey();

  @Override
  @ParametricNullness
  public abstract V getValue();

  @Override
  @ParametricNullness
  public V setValue(@ParametricNullness V value) {
    throw new UnsupportedOperationException();
  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object instanceof Entry) {
      Entry<?, ?> that = (Entry<?, ?>) object;

    }

    protected Element getChild(Element element, String childName) {
        Element child = findChild(element, childName);
        if (child != null) {
            return child;
        }
        throw new RuntimeException(String.format("No <%s> element found in <%s>", childName, element.getTagName()));
    }

    protected Element findChild(Element element, String childName) {

    // java.lang.reflect.InaccessibleObjectException: Unable to make member of class
    // sun.security.ssl.SSLSocketFactoryImpl accessible:  module java.base does not export
    // sun.security.ssl to unnamed module @xxx
    throw UnsupportedOperationException(
      "clientBuilder.sslSocketFactory(SSLSocketFactory) not supported on JDK 8 (>= 252) or JDK 9+",
    )
  }

  override fun newSSLContext(): SSLContext =
    when {

    assertThat(t3).isCloseTo(1750.0, 250.0)
  }

  @Test fun taskFailsWithUncheckedException() {
    queue.schedule("task", TimeUnit.MILLISECONDS.toNanos(100)) {
      log.put("failing task running")
      throw RuntimeException("boom!")
    }

    queue.schedule("task", TimeUnit.MILLISECONDS.toNanos(200)) {
      log.put("normal task running")
      return@schedule -1L
    }

        // You can't say "assuming String is Integer".
        // And we don't support "assuming String is T"; user has to say "assuming T is String".
        throw new IllegalArgumentException("No type mapping from " + fromClass + " to " + to);
      }
    }.visit(from);
  }

  /**
   * Resolves all type variables in {@code type} and all downstream types and returns a

  private ParseRequest(String rawValue, int radix) {
    this.rawValue = rawValue;
    this.radix = radix;
  }

  static ParseRequest fromString(String stringValue) {
    if (stringValue.length() == 0) {
      throw new NumberFormatException("empty string");
    }

    // Handle radix specifier if present
    String rawValue;
    int radix;
    char firstChar = stringValue.charAt(0);

        assertArgumentNotNull("enumeration", enumeration);
        this.enumeration = enumeration;
    }

    @Override
    public void remove() {
        throw new ClUnsupportedOperationException("remove");
    }

    @Override
    public boolean hasNext() {
        return enumeration.hasMoreElements();
    }

    @Override
    public T next() {

                suffixWords = WordlistLoader.getWordSet(reader);
            } catch (final IOException e) {
                throw new IllegalArgumentException("Could not load " + suffixWordsFile.getAbsolutePath(), e);
            }
        } else {
            suffixWords = new CharArraySet(0, false);
        }
    }

    @Override

                                + requiredMavenVersion,
                        e);
                return;
            }
            if (!isRequirementMet) {
                throw new IllegalStateException("Required Maven version " + requiredMavenVersion
                        + " is not met by current version " + runtimeInformation.getMavenVersion());
            }
        }
    }

    public boolean isCollection() {
        return false;
    }

    @Override
    public boolean isLeaf() {
        return true;
    }

    @Override
    public void setValue(Object value) {
        throw new UnsupportedOperationException();
    }