return hash;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

        if (!(obj instanceof OrArtifactFilter)) {
            return false;
        }

        OrArtifactFilter other = (OrArtifactFilter) obj;

        return filters.equals(other.filters);
    }

        @Override
        public int hashCode() {
            return id().hashCode();
        }

        @Override
        public boolean equals(Object obj) {
            return obj != null && getClass() == obj.getClass() && id().equals(((DefaultExtensibleEnum) obj).id());
        }

        @Override
        public String toString() {
            return getClass().getSimpleName() + "[" + id() + "]";
        }
    }

        return !restrictions.isEmpty() && recommendedVersion == null;
    }

    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (!(obj instanceof VersionRange)) {
            return false;
        }
        VersionRange other = (VersionRange) obj;

        return Objects.equals(recommendedVersion, other.recommendedVersion)

                currentStream.notifyAll();
            }
        }

        @Override
        public void print(Object obj) {
            final PrintStream currentStream = getOutputStreamForCurrentThread();
            synchronized (currentStream) {
                currentStream.print(obj);
                currentStream.notifyAll();
            }
        }

        @Override

    }

    public static <T> T nonNull(T obj, String message) {
        if (obj == null) {
            throw new IllegalArgumentException(message);
        }
        return obj;
    }

    protected static <T> Collection<T> unmodifiable(Collection<T> obj) {
        return obj != null && !obj.isEmpty()
                ? Collections.unmodifiableCollection(new ArrayList<>(obj))
                : Collections.emptyList();
    }

            return hashCode;
        }

        @Override
        public boolean equals(Object obj) {
            if (this == obj) {
                return true;
            }

            if (!(obj instanceof CacheKey)) {
                return false;
            }

            CacheKey that = (CacheKey) obj;

            return Objects.equals(this.artifactId, that.artifactId)

        return hash;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

        if (!(obj instanceof ExclusionSetFilter)) {
            return false;
        }

        ExclusionSetFilter other = (ExclusionSetFilter) obj;

        return excludes.equals(other.excludes);
    }

    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }

        if (this == obj) {
            return true;
        }

        if (!(obj instanceof DefaultToolchain)) {
            return false;
        }

        DefaultToolchain other = (DefaultToolchain) obj;

        if (!Objects.equals(type, other.type)) {

        public String getContentType() {
            return type;
        }

        public boolean equals(Object obj) {
            if (this == obj) {
                return true;
            } else {
                return obj != null && this.getClass().equals(obj.getClass()) && this.keys.equals(((Key) obj).keys);
            }
        }

        public int hashCode() {
            return this.keys.hashCode();

        }

        @Override
        public boolean equals(Object obj) {
            if (this == obj) {
                return true;
            }
            if (!(obj instanceof GAKey)) {
                return false;
            }
            GAKey that = (GAKey) obj;
            return artifactId.equals(that.artifactId) && groupId.equals(that.groupId);
        }