File exists but java file.exists() but return false

Question

As the title says, I'm checking if a file exists or not with java. The file is stored in

C:\Windows\System32.

If I run the project with Netbeans, no problem. It returns true.

But if I run the .jar, it returns false. I'm admin of the computer, but I don't know which privilege I have when I run the .jar.

Do you have any idea

'code' File dest = new File("C:\\Windows\\System32\\" + myFile); — 10h02
– 10h02, Commented Mar 2, 2015 at 13:30
You should edit that code into the question body ideally - code in comments tends to get missed. — J Richard Snape
– J Richard Snape, Commented Mar 2, 2015 at 13:57

pepan · Accepted Answer · 2015-03-02 13:20:18Z

3

Try to run cmd.exe as an admin and then run your .jar from this cmd. Being an admin does not mean you are starting your apps with admin privilege.

answered Mar 2, 2015 at 13:20

pepan

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2 Comments

10h02 Over a year ago

That's it! If I don't run the cmd.exe as admin, it still returns false. But if I run it as an admin, it returns true! So how can I run my jar file with admin privilege?

pepan Over a year ago

That has been already answered before; see here link

Binkan Salaryman · Accepted Answer · 2015-03-02 14:06:23Z

3

According to this Oracle tutorial, you should check also Files.notExists - if it returns false, too, your program failed to verify the existence of the file.

edited Mar 2, 2015 at 14:06

anon

answered Mar 2, 2015 at 13:27

Binkan Salaryman

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2 Comments

Stephen C Over a year ago

That should be Files.notExists ... File and Files are different classes.

Stephen C Over a year ago

If it is not a typo, it is an error. because File.notExists (sic) does not exist. (Sick :-) )

MeherHedhli · Accepted Answer · 2015-03-02 13:28:18Z

0

Maybe you have to run CMD as an administrator and then run your .jar file, like you didn't post the code we can't get a good idea about your issue.

answered Mar 2, 2015 at 13:28

MeherHedhli

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