In Javadoc for th method "addDublinCoreSchema()" I read:
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"Create and add a new Dublin Core Schema to this metadata. Typically a XMP document will only have one schema for each type (but multiple are supported) so it is recommended that you first check the existence of a this scheme by using getDublinCoreSchema()"
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but getDublinCoreSchema() doesn't exist... and there aren't no methods to load schema existing in XMPmetadata.
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In Javadoc for th method "addDublinCoreSchema()" I read:
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"Create and add a new Dublin Core Schema to this metadata. Typically a XMP document will only have one schema for each type (but multiple are supported) so it is recommended that you first check the existence of a this scheme by using getDublinCoreSchema()"
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but getDublinCoreSchema() doesn't exist... and there aren't no methods to load schema existing in XMPmetadata.