}

    @Provides
    BuildOperationNotificationValve createBuildOperationNotificationValve(BuildOperationNotificationBridge buildOperationNotificationBridge) {
        return buildOperationNotificationBridge.getValve();
    }

        State s = state;
        if (s == null) {
            throw new IllegalStateException("state is null");
        }

        return s;
    }

    public BuildOperationNotificationValve getValve() {
        return valve;
    }

    /*
        Note: the intention here is to work towards not having to create new objects
        to meet the notification object interfaces.

        assertEquals("test-prop", pom.getValue("properties[1]/b")); // verifies profile applied
        assertEquals(4, ((List<?>) pom.getValue("modules")).size());
        assertEquals("module-2", pom.getValue("modules[1]"));
        assertEquals("module-1", pom.getValue("modules[2]"));
        assertEquals("module-3", pom.getValue("modules[3]"));
        assertEquals("module-4", pom.getValue("modules[4]"));
    }

    /**

    private String extractGroupId(PlexusConfiguration c) {
        return c.getChild("groupId").getValue();
    }

    private String extractArtifactId(PlexusConfiguration c) {
        return c.getChild("artifactId").getValue();
    }

    private String extractVersion(PlexusConfiguration c) {
        return c.getChild("version").getValue();
    }

    private String extractGoalPrefix(PlexusConfiguration c) {

        return new ImmutableManagedValueSnapshot(getValue().publicType().getName(), (String) getValue().unpackState());
    }

    @Override
    public void appendToHasher(Hasher hasher) {
        asSnapshot().appendToHasher(hasher);
    }

    @Nullable
    @Override
    public <S> S coerce(Class<S> type) {
        if (type.isInstance(getValue())) {
            return type.cast(getValue());
        }

        assertEquals(expected, DocumentUtil.getValue(doc, "key1", String.class));
        assertEquals(Integer.parseInt(expected), DocumentUtil.getValue(doc, "key1", Integer.class).intValue());
        assertEquals(Long.parseLong(expected), DocumentUtil.getValue(doc, "key1", Long.class).longValue());
        assertEquals(Float.parseFloat(expected), DocumentUtil.getValue(doc, "key1", Float.class).floatValue());

  // Verify function attributes.
  auto op_func_attr_array = op.getOpFuncAttrs().getValue();
  for (auto op_attr : op_func_attr_array) {
    auto key_value = mlir::dyn_cast<mlir::ArrayAttr>(op_attr);
    if (!key_value || key_value.getValue().size() != 2 ||
        !mlir::isa<mlir::StringAttr>(key_value.getValue()[0]) ||
        !mlir::isa<mlir::StringAttr>(key_value.getValue()[1]))
      return op.emitOpError() << "each op_func_attr should be a key-value "

            String parentOrganisation = attributes.getValue("organisation");
            String parentModule = attributes.getValue("module");
            String parentRevision = attributes.getValue("revision");
            String location = elvis(attributes.getValue("location"), "../ivy.xml");

            String extendType = elvis(attributes.getValue("extendType"), "all").toLowerCase();

      Entry<?, ?> that = (Entry<?, ?>) object;
      return Objects.equal(this.getKey(), that.getKey())
          && Objects.equal(this.getValue(), that.getValue());
    }
    return false;
  }

  /**
   * A sensible definition of {@link #hashCode()} in terms of {@link #getKey()} and {@link
   * #getValue()}. If you override either of these methods, you may wish to override {@link
   * #hashCode()} to forward to this implementation.
   *

    }

    @Override
    public Object getValue() {
        return getValue(node);
    }

    private static Object getValue(XmlNode node) {
        if (node.getValue() != null) {
            return node.getValue();
        } else {
            List<Object> children = new ArrayList<>();
            for (XmlNode child : node.getChildren()) {
                children.add(getValue(child));
            }