builder.putAll(map);
      for (Entry<TypeVariableKey, ? extends Type> mapping : mappings.entrySet()) {
        TypeVariableKey variable = mapping.getKey();
        Type type = mapping.getValue();
        checkArgument(!variable.equalsType(type), "Type variable %s bound to itself", variable);
        builder.put(variable, type);
      }
      return new TypeTable(builder.buildOrThrow());
    }

          // ExampleStackTrace(preAcquiredLock, this) to the returned chain of
          // ExampleStackTraces.
          ExampleStackTrace path = new ExampleStackTrace(preAcquiredLock, this);
          path.setStackTrace(entry.getValue().getStackTrace());
          path.initCause(found);
          return path;
        }
      }
      return null;
    }
  }

  /**

    assertThat(result.keySet()).containsExactlyElementsIn(asList(lookupKeys));
    for (Entry<Object, Object> entry : result.entrySet()) {
      Object key = entry.getKey();
      Object value = entry.getValue();
      assertThat(result.get(key)).isSameInstanceAs(value);
      assertThat(result.get(value)).isNull();
      assertThat(cache.asMap().get(key)).isSameInstanceAs(value);

            Object value = null;

            PlexusConfiguration config = configuration.getChild(parameter.getName(), false);
            if (config != null) {
                String expression = config.getValue(null);

                try {
                    value = expressionEvaluator.evaluate(expression);

                    if (value == null) {

          }
        };
    for (Entry<Class<?>, Collection<Object>> entry : distinctValues.asMap().entrySet()) {
      generator.addSampleInstances((Class) entry.getKey(), entry.getValue());
    }
    return generator;
  }

  private static @Nullable Object generateDummyArg(Parameter param, FreshValueGenerator generator)
      throws ParameterNotInstantiableException {

                    V oldValue = map.get(key);
                    // JDK8: this should be a call to map.merge( key, v, remapping )
                    V newValue = (oldValue == null) ? e.getValue() : remapping.merge(oldValue, e.getValue());
                    if (newValue == null) {
                        remove(key);
                    } else if (newValue != oldValue) {
                        map.put(key, newValue);

          // ExampleStackTrace(preAcquiredLock, this) to the returned chain of
          // ExampleStackTraces.
          ExampleStackTrace path = new ExampleStackTrace(preAcquiredLock, this);
          path.setStackTrace(entry.getValue().getStackTrace());
          path.initCause(found);
          return path;
        }
      }
      return null;
    }
  }

  /**

          for (Map.Entry<String, GistFile> entry : gist.files.entrySet()) {
            System.out.println(entry.getKey());
            System.out.println(entry.getValue().content);
          }
        }
      }

      static class Gist {
        Map<String, GistFile> files;
      }

      static class GistFile {
        String content;
      }
    ```

            stk.push(new ActivationFrame("name", Optional.empty()));
            validator.accept(pa.getName());
            stk.peek().location = "value";
            validator.accept(pa.getValue());
            stk.pop();
            stk.pop();
        });
        root.map(Activation::getJdk).ifPresent(jdk -> {
            stk.push(new ActivationFrame("jdk", Optional.empty()));

    assertThat(result.keySet()).containsExactlyElementsIn(asList(lookupKeys));
    for (Entry<Object, Object> entry : result.entrySet()) {
      Object key = entry.getKey();
      Object value = entry.getValue();
      assertThat(result.get(key)).isSameInstanceAs(value);
      assertThat(result.get(value)).isNull();
      assertThat(cache.asMap().get(key)).isSameInstanceAs(value);