# Hierarchy For Package org.apache.pdfbox.preflight.metadata

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - org.apache.pdfbox.preflight.metadata.PDFAIdentificationValidation
  - org.apache.pdfbox.preflight.metadata.RDFAboutAttributeConcordanceValidation
  - org.apache.pdfbox.preflight.metadata.SynchronizedMetaDataValidation
  - java.lang.Throwable (implements java.io.Serializable)
    - java.lang.Exception
      - org.apache.pdfbox.preflight.metadata.RDFAboutAttributeConcordanceValidation.DifferentRDFAboutException
      - org.apache.pdfbox.preflight.metadata.XpacketParsingException
  - org.apache.pdfbox.preflight.metadata.UniquePropertiesValidation