将Java项目导出为.jar，包含.java源代码并保留外部库依赖项

I know how to export a Java Project as a .jar including also .java source code (just export it as a plain .jar), and how how to export it as a runnable .jar including only .class files (just select the runnable .jar export style). If the project doesn't have dependecies on external libraries, I noticed that both .jar run correctly by command line. I know how to export a Java Project as a .jar i