Exception in thread "main" java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory at nl.siegmann.epublib.epub.EpubReader.<clinit>(EpubReader.java:33)

[d4rKn1ght]

trying on a Simple Java program to read an epub file and display the Author (metadata):

    try {
        
         System.out.println("Inside Try block");
        
         EpubReader ereader = new EpubReader();
    
          Book ebook = ereader.readEpub(new FileInputStream(filepath));
          List<String> titles = ebook.getMetadata().getTitles();
    
          System.out.println("book title:" + (titles.isEmpty() ? "book has no title" : titles.get(0)));
 }
    catch(Exception e)  {
        System.out.println("Exception: "+ e);
    }

This throws the exception:

Exception in thread "main" java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
at nl.siegmann.epublib.epub.EpubReader.(EpubReader.java:33)
at epub_test.EPUB_TEST.main(EPUB_TEST.java:57)
Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory

I have imported "epublib-core-latest.jar" - and downloaded this file from: https://github.com/psiegman/epublib/epublib-core-latest.jar

[Neschastje]

You have to add slf4j lib to your project.