Fix xmp import

CHANGELOG.md

@@ -74,6 +74,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 - We fixed an issue where selecting a citation style in the preferences would sometimes produce an exception [#7860](https://github.com/JabRef/jabref/issues/7860)
 - We fixed an issue where an exception would occur when clicking on a DOI link in the preview pane [#7706](https://github.com/JabRef/jabref/issues/7706)
 - We fixed an issue where XMP and embedded BibTeX export would not work [#8278](https://github.com/JabRef/jabref/issues/8278)
+- We fixed an issue where the XMP and embedded BibTeX import of a file containing multiple schemas failed [#8278](https://github.com/JabRef/jabref/issues/8278)
 
 ### Removed
 

src/main/java/org/jabref/logic/importer/fileformat/PdfEmbeddedBibFileImporter.java

@@ -90,9 +90,11 @@ private List<BibEntry> getEmbeddedBibFileEntries(PDDocument document) throws IOE
  allParsedEntries.addAll(extractAndParseFiles(names));
  } else {
  List<PDNameTreeNode<PDComplexFileSpecification>> kids = efTree.getKids();
- for (PDNameTreeNode<PDComplexFileSpecification> node : kids) {
- names = node.getNames();
- allParsedEntries.addAll(extractAndParseFiles(names));
+ if (kids != null) {
+ for (PDNameTreeNode<PDComplexFileSpecification> node : kids) {
+ names = node.getNames();
+ allParsedEntries.addAll(extractAndParseFiles(names));
+ }
  }
  }
  }

src/main/java/org/jabref/logic/xmp/XmpUtilReader.java

@@ -17,9 +17,13 @@
 import org.apache.pdfbox.pdmodel.common.PDMetadata;
 import org.apache.xmpbox.XMPMetadata;
 import org.apache.xmpbox.schema.DublinCoreSchema;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class XmpUtilReader {
 
+ private static final Logger LOGGER = LoggerFactory.getLogger(XmpUtilReader.class);
+
  private static final String START_TAG = "<rdf:Description";
  private static final String END_TAG = "</rdf:Description>";
 
@@ -120,7 +124,7 @@ private static List<XMPMetadata> getXmpMetadata(PDDocument document) throws IOEx
  int startDescriptionSection = xmp.indexOf(START_TAG);
  int endDescriptionSection = xmp.lastIndexOf(END_TAG) + END_TAG.length();
 
- if (startDescriptionSection < 0 || startDescriptionSection > endDescriptionSection || endDescriptionSection == END_TAG.length() - 1) {
+ if ((startDescriptionSection < 0) || (startDescriptionSection > endDescriptionSection) || (endDescriptionSection == (END_TAG.length() - 1))) {
  return metaList;
  }
 
@@ -134,7 +138,11 @@ private static List<XMPMetadata> getXmpMetadata(PDDocument document) throws IOEx
  for (String s : descriptionsArray) {
  // END_TAG is appended, because of the split operation above
  String xmpMetaString = start + s + END_TAG + end;
- metaList.add(XmpUtilShared.parseXmpMetadata(new ByteArrayInputStream(xmpMetaString.getBytes())));
+ try {
+ metaList.add(XmpUtilShared.parseXmpMetadata(new ByteArrayInputStream(xmpMetaString.getBytes())));
+ } catch (IOException ex) {
+ LOGGER.error("Problem parsing XMP schema. Continuing with other schemas.", ex);
+ }
  }
  return metaList;
  }