GroupDocs.Metadata for Java provides functionality that allows working with MPP files created by different versions of Microsoft Project. Please see the code samples below for more information.
Reading built-In metadata properties To access built-in metadata of a ProjectManagement document, please use the getDocumentProperties method defined in the DocumentRootPackage class.
The following code snippet extracts built-in metadata properties and displays them on the screen.
advanced_usage.managing_metadata_for_specific_formats.document.project_management.ProjectManagementReadBuiltInProperties
try (Metadata metadata = new Metadata(Constants.InputMpp)) { ProjectManagementRootPackage root = metadata....Classification Product Solution Purchase...