Version 1.3 introduces changes to help with [faster metadata reads and updates](https://blog.min.io/minio-versioning-metadata-deep-dive/)

| Entry           | Encoding                    | Content
| ----------------|-----------------------------|----------------------------------------
| xlHeaderVersion | msgp uint                   | header version identifier
| xlMetaVersion   | msgp uint                   | metadata version identifier

    public void merge(ArtifactMetadata metadata) {
        ProjectArtifactMetadata m = (ProjectArtifactMetadata) metadata;
        if (!m.file.equals(file)) {
            throw new IllegalStateException("Cannot add two different pieces of metadata for: " + getKey());
        }
    }

    @Override
    public void merge(org.apache.maven.repository.legacy.metadata.ArtifactMetadata metadata) {

    /**
     * Merge a new metadata set into this piece of metadata.
     * TODO this should only be needed on the repository metadata {@link org.apache.maven.artifact.metadata.ArtifactMetadata}
     *
     * @param metadata the new metadata
     */
    void merge(ArtifactMetadata metadata);

    /**
     * Store the metadata in the local repository.

     * @throws RepositoryMetadataDeploymentException in case of metadata deployment issue
     */
    void deploy(ArtifactMetadata metadata, ArtifactRepository localRepository, ArtifactRepository deploymentRepository)
            throws RepositoryMetadataDeploymentException;

    /**
     * Install the metadata in the local repository.
     *
     * @param metadata        the metadata
     * @param localRepository the local repository

	// name is the full name of the object including prefixes
	name string
	// Metadata. If none is present it is not an object but only a prefix.
	// Entries without metadata will only be present in non-recursive scans.
	metadata []byte

	// cached contains the metadata if decoded.
	cached *xlMetaV2

	// Indicates the entry can be reused and only one reference to metadata is expected.
	reusable bool
}

		if err != nil {
			t.Fatalf("Test %d: Failed to encrypt request: %v", i, err)
		}
		if kdf, ok := test.metadata[crypto.MetaAlgorithm]; !ok {
			t.Errorf("Test %d: ServerSideEncryptionKDF must be part of metadata: %v", i, kdf)
		}
		if iv, ok := test.metadata[crypto.MetaIV]; !ok {
			t.Errorf("Test %d: crypto.SSEIV must be part of metadata: %v", i, iv)
		}

## OpenAPI Metadata - Docs

Para adicionar metadados ao seu esquema OpenAPI, incluindo  licensa, versão, contato, etc, leia a seção [Tutorial - Metadata and Docs URLs](../tutorial/metadata.md){.internal-link target=_blank}.

## OpenAPI com URL customizada

Para customizar a URL do OpenAPI (ou removê-la), leia a seção [Tutorial - Metadata and Docs URLs](../tutorial/metadata.md#openapi-url){.internal-link target=_blank}.

            if (node2.metadata == null) {
                return metadata == null;
            }

            return metadata != null && metadata.toString().equals(node2.metadata.toString());
        } else {
            return super.equals(obj);
        }
    }

    @Override
    public int hashCode() {
        if (metadata == null) {
            return super.hashCode();
        }

import org.apache.maven.artifact.versioning.ArtifactVersion;
import org.apache.maven.repository.legacy.metadata.ArtifactMetadataRetrievalException;
import org.apache.maven.repository.legacy.metadata.ArtifactMetadataSource;
import org.apache.maven.repository.legacy.metadata.MetadataResolutionRequest;
import org.apache.maven.repository.legacy.metadata.ResolutionGroup;

@Named
@Singleton
@Deprecated

### Internal metadata for replication

`xl.meta` that is in use for [versioning](https://github.com/minio/minio/blob/master/docs/bucket/versioning/DESIGN.md) has additional metadata for replication of objects,delete markers and versioned deletes.