找不到 

import dev.langchain4j.data.document.loader.FileSystemDocumentLoader;

import dev.langchain4j.data.document.Document;
import dev.langchain4j.data.document.loader.FileSystemDocumentLoader;
import dev.langchain4j.data.document.parser.apache.pdfbox.ApachePdfBoxDocumentParser;
import lombok.extern.slf4j.Slf4j;
import org.junit.Test;    


@Test
    public void testParsePDF() {
        Document document = FileSystemDocumentLoader.loadDocument(
                "H:\\BaiduNetdiskDownload\\ssxx.pdf",
                new ApachePdfBoxDocumentParser()
        );
        System.out.println(document);

        System.out.println(document.text());

    }

解决

		<dependency>
			<groupId>dev.langchain4j</groupId>
			<artifactId>langchain4j-easy-rag</artifactId>
			<version>1.0.0-beta5</version>
		</dependency>