*/
    public boolean equals(Object other) {
        if (this == other) {
            return true;
        } else if (other instanceof ToolchainModel that) {
            return java.util.Objects.equals(this.getType(), that.getType())
                && java.util.Objects.equals(this.getProvides(), that.getProvides());
        } else {
            return false;
        }

        RepositoryMetadata metadata;
        // Don't use snapshot metadata for LATEST (which isSnapshot returns true for)
        if (!artifact.isSnapshot() || Artifact.LATEST_VERSION.equals(artifact.getBaseVersion())) {
            metadata = new ArtifactRepositoryMetadata(artifact);
        } else {
            metadata = new SnapshotArtifactRepositoryMetadata(artifact);
        }

    }

    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (!(obj instanceof final SitemapUrl sitemapUrl)) {
            return false;
        }
        if (StringUtil.equals(loc, sitemapUrl.loc) && StringUtil.equals(changefreq, sitemapUrl.changefreq)

        } else if (Artifact.SCOPE_COMPILE.equals(originalScope) && Artifact.SCOPE_COMPILE.equals(inheritedScope)) {
            // added to retain compile scope. Remove if you want compile inherited as runtime
            effectiveScope = Artifact.SCOPE_COMPILE;
        } else if (Artifact.SCOPE_TEST.equals(inheritedScope)) {
            effectiveScope = Artifact.SCOPE_TEST;
        } else if (Artifact.SCOPE_PROVIDED.equals(inheritedScope)) {

    }

    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null || getClass() != obj.getClass()) {
            return false;
        }
        final KuromojiItem other = (KuromojiItem) obj;
        if (!Objects.equals(pos, other.pos) || !Objects.equals(reading, other.reading) || !Objects.equals(segmentation, other.segmentation)

    /**
     * helper for equals
     */
    private static boolean objectsEqual(Object o1, Object o2) {
        if (o1 == null && o2 == null) {
            return true;
        }
        if (o1 == null || o2 == null) {
            return false; // as they are not both null
        }
        return o1.equals(o2);
    }

    assertEquals(reference.getClass(), target.getClass());
    assertTrue(Arrays.equals(reference, target));
    assertTrue(Arrays.equals(reference, target));

    Object[] expectedArray1 = expectModify ? reference : starting;
    Object[] expectedArray2 = expectModify ? target : starting;
    assertTrue(Arrays.equals(expectedArray1, array1));
    assertTrue(Arrays.equals(expectedArray2, array2));
  }

  public void testPrependZeroElements() {

        }

        if ("fess-crawler".equals(name)//
                || "fess-crawler-db".equals(name)//
                || "fess-crawler-db-h2".equals(name)//
                || "fess-crawler-db-mysql".equals(name)//
                || "fess-crawler-es".equals(name)//
                || "fess-crawler-opensearch".equals(name)//
                || "fess-crawler-lasta".equals(name)//

        @Override
        public boolean equals(Object o) {
            if (this == o) {
                return true;
            }
            if (o == null || getClass() != o.getClass()) {
                return false;
            }
            CombinationItem that = (CombinationItem) o;
            return Objects.equals(stringPart, that.stringPart) && Objects.equals(digitPart, that.digitPart);
        }

        OrArtifactFilter filter2 = new OrArtifactFilter(Arrays.asList(newSubFilter()));

        assertFalse(filter1.equals(null));
        assertTrue(filter1.equals(filter1));
        assertEquals(filter1.hashCode(), filter1.hashCode());

        assertFalse(filter1.equals(filter2));
        assertFalse(filter2.equals(filter1));
    }