catalogs/catalog-hadoop/src/main/java/org/apache/gravitino/catalog/hadoop/HadoopCatalogOperations.java [914:948]:
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  private SchemaEntity updateSchemaEntity(
      NameIdentifier ident, SchemaEntity schemaEntity, SchemaChange... changes) {
    Map<String, String> props =
        schemaEntity.properties() == null
            ? Maps.newHashMap()
            : Maps.newHashMap(schemaEntity.properties());

    for (SchemaChange change : changes) {
      if (change instanceof SchemaChange.SetProperty) {
        SchemaChange.SetProperty setProperty = (SchemaChange.SetProperty) change;
        props.put(setProperty.getProperty(), setProperty.getValue());
      } else if (change instanceof SchemaChange.RemoveProperty) {
        SchemaChange.RemoveProperty removeProperty = (SchemaChange.RemoveProperty) change;
        props.remove(removeProperty.getProperty());
      } else {
        throw new IllegalArgumentException(
            "Unsupported schema change: " + change.getClass().getSimpleName());
      }
    }

    return SchemaEntity.builder()
        .withName(schemaEntity.name())
        .withNamespace(ident.namespace())
        .withId(schemaEntity.id())
        .withComment(schemaEntity.comment())
        .withProperties(props)
        .withAuditInfo(
            AuditInfo.builder()
                .withCreator(schemaEntity.auditInfo().creator())
                .withCreateTime(schemaEntity.auditInfo().createTime())
                .withLastModifier(PrincipalUtils.getCurrentPrincipal().getName())
                .withLastModifiedTime(Instant.now())
                .build())
        .build();
  }
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core/src/main/java/org/apache/gravitino/catalog/ManagedSchemaOperations.java [199:233]:
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  private SchemaEntity updateSchemaEntity(
      NameIdentifier ident, SchemaEntity schemaEntity, SchemaChange... changes) {
    Map<String, String> props =
        schemaEntity.properties() == null
            ? Maps.newHashMap()
            : Maps.newHashMap(schemaEntity.properties());

    for (SchemaChange change : changes) {
      if (change instanceof SchemaChange.SetProperty) {
        SchemaChange.SetProperty setProperty = (SchemaChange.SetProperty) change;
        props.put(setProperty.getProperty(), setProperty.getValue());
      } else if (change instanceof SchemaChange.RemoveProperty) {
        SchemaChange.RemoveProperty removeProperty = (SchemaChange.RemoveProperty) change;
        props.remove(removeProperty.getProperty());
      } else {
        throw new IllegalArgumentException(
            "Unsupported schema change: " + change.getClass().getSimpleName());
      }
    }

    return SchemaEntity.builder()
        .withName(schemaEntity.name())
        .withNamespace(ident.namespace())
        .withId(schemaEntity.id())
        .withComment(schemaEntity.comment())
        .withProperties(props)
        .withAuditInfo(
            AuditInfo.builder()
                .withCreator(schemaEntity.auditInfo().creator())
                .withCreateTime(schemaEntity.auditInfo().createTime())
                .withLastModifier(PrincipalUtils.getCurrentPrincipal().getName())
                .withLastModifiedTime(Instant.now())
                .build())
        .build();
  }
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