getResourceAsStream for "/" in windows and linux

windows:

projectname/config/xxx.properties

classpath:.../config

TestListener.class.getClassLoader().getResource("/xxx.properties")

InputStream is = TestListener.class.getClassLoader().getResourceAsStream("/xxx.properties");

linux:

classpath:.../config

TestListener.class.getClassLoader().getResource("xxx.properties")

InputStream is = TestListener.class.getClassLoader().getResourceAsStream("xxx.properties");

TestListener.class.getClassLoader().getResource("/") 会返回null