java.security.AccessControlException: Access denied (java.io.FilePermission

java security file-io file-permissions accesscontrolexception
arsenal picture arsenal · May 4, 2012 · Viewed 118.5k times · Source 
final File parentDir = new File("S:\\PDSPopulatingProgram");
parentDir.mkdir();
final String hash = "popupateData";
final String fileName = hash + ".txt";
final File file = new File(parentDir, fileName);
file.createNewFile(); // Creates file PDSPopulatingProgram/popupateData.txt

I am trying to create a file in a folder but I am getting exception as 

java.security.AccessControlException: Access denied

I am working in windows environment. I can create a folder from the Windows Explorer, but not from the Java Code.

How can I resolve this issue?

Answer

Petey B picture Petey B · May 4, 2012

Within your <jre location>\lib\security\java.policy try adding:

grant { permission java.security.AllPermission; };

And see if it allows you. If so, you will have to add more granular permissions.

See:

Java 8 Documentation for java.policy files

and

http://java.sun.com/developer/onlineTraining/Programming/JDCBook/appA.html

Related questions

Java Error: "Your security settings have blocked a local application from running"

I'm trying to run this simple HelloWorld code written in Java from my browser (Chrome): public class HelloWorld extends JApplet { public void init() { try { SwingUtilities.invokeAndWait(new Runnable() { public void run() { JLabel lbl = new JLabel("Hello World"); add(lbl); } }); } catch (…

Read More
Why is char[] preferred over String for passwords?

In Swing, the password field has a getPassword() (returns char[]) method instead of the usual getText() (returns String) method. Similarly, I have come across a suggestion not to use String to handle passwords. Why does String pose a threat to …

Read More
How to retrieve a file from a server via SFTP?

I'm trying to retrieve a file from a server using SFTP (as opposed to FTPS) using Java. How can I do this?

Read More