find the title from second page (#12157)

* find the title from second page

find the title from second page

* fix method name

fix method name

* add a unit test file with a test cover page

add a unit test file with a test cover page

* change unit test cover page file

change unit test cover page file

* fix the pdf file with consistency cover

fix the pdf file with consistency cover

Author: leaf-soba

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

@@ -218,7 +218,7 @@ public ParserResult importDatabase(Path filePath) {
 
     private static String extractTitleFromDocument(PDDocument document) throws IOException {
         TitleExtractorByFontSize stripper = new TitleExtractorByFontSize();
-        return stripper.getTitleFromFirstPage(document);
+        return stripper.getTitle(document);
     }
 
     private static class TitleExtractorByFontSize extends PDFTextStripper {
@@ -230,9 +230,9 @@ public TitleExtractorByFontSize() {
             this.textPositionsList = new ArrayList<>();
         }
 
-        public String getTitleFromFirstPage(PDDocument document) throws IOException {
+        public String getTitle(PDDocument document) throws IOException {
             this.setStartPage(1);
-            this.setEndPage(1);
+            this.setEndPage(2);
             this.writeText(document, new StringWriter());
             return findLargestFontText(textPositionsList);
         }

src/test/java/org/jabref/logic/importer/fileformat/PdfContentImporterTest.java

@@ -140,6 +140,7 @@ void pdfTitleExtraction(String expectedTitle, String filePath) throws Exception
     private static Stream<Arguments> providePdfData() {
         return Stream.of(
                 Arguments.of("Fundamentals of Distributed Computing: A Practical Tour of Vector Clock Systems", "/pdfs/PdfContentImporter/Baldoni2002.pdf"),
+                Arguments.of("JabRef Example for Reference Parsing", "/pdfs/IEEE/ieee-paper-cover.pdf"),
                 Arguments.of("On How We Can Teach – Exploring New Ways in Professional Software Development for Students", "/pdfs/PdfContentImporter/Kriha2018.pdf"),
                 Arguments.of("JabRef Example for Reference Parsing", "/pdfs/IEEE/ieee-paper.pdf"),
                 Arguments.of("Paper Title", "/org/jabref/logic/importer/util/LNCS-minimal.pdf"),