Source attachment of JAR file not found

Question

I have downloaded the JAR-file sqlite-jdbc-3.21.0.jar and added it to my project in Eclipse ( Build Path -> Configure Build Path -> Add External JARs ). I can even see in the Package Explorer that the file has been added to the Referenced Libraries and when I click on the file, I see all the packages it contains and within them all the classes. However, when I try to open the documentation of a class, Eclipse tells me that the JAR-file has no source attachment. I have tried attaching the source, but then I get the message " The source attachment does not contain the source for the file... ". Does anyone have an idea, why this may happen?

Answer 1

下载并包含源代码jar 文档jar