java - Why does servletContext.getRealPath returns null on tomcat 8? -


i have following code line:

servletcontext.getrealpath("resources/images/video_icon.png")

wen run application using jetty(using maven plugin) code line return corect value.

when run application using tomcat 8(on tomcat 7 works) - application returns null.

application structure:

enter image description here

1.how fix it?
2.why happen?

after adding / in path beginning works in both: jetty , tomcat 8

servletcontext.getrealpath("/resources/images/video_icon.png")

-

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