file owner's name in java

[simplyrak]

using jdk 1.7 how can I retrieve the owner's name of a file. piece of code is as follows.getting error
cannot find FileRef and Attributes class.

FileRef file=Paths.get("name and location of file with extension");
UserPrincipal principal=Attributes.getOwner(file);
System.out.println("File's owner is "+principal.getName());

if there is some other method to get file owner's name then please suggest. I would be great with an example

[shashi7]

the error may be due to the classpath settings. watch the classpath settings is pointed to the new java 1.7 version or not

[simplyrak]

I've checked the path. the error it reports is incompatible type

[keang]

I've checked the path. the error it reports is incompatible type

That's not the error you posted in your first post which says "cannot find FileRef and Attributes class."

Please post the full compiler error message and the section of code it relates to.