问题
I have attached some maven library to my project. It has javadoc with it and the file is present
Unfortunately, when I am trying to invoke external documentation on any of this library classes, I am getting 404 error:
Note, that actual location of JAR file is apparently different: file is located where local repository is located, while it is referred to as located inside project tree.
UPDATE
If I invoke the quick documentation for the same class, it shows. Probably, it generates content from code comments. Simultaneously, it displays some sort of warning above:
Following external urls were checked:
http://localhost:63342/MYPROJECTPATH/commons-lang3-3.4-javadoc.jar/org/apache/commons/lang3/ArrayUtils.html The documentation for this element is not found. Please add all the needed paths to API docs in Project Settings.
来源：https://stackoverflow.com/questions/31071842/error-404-while-looking-maven-downloaded-javadoc-with-external-documentation-in