java.security.AccessControlException: access denied (java.io.FilePermission <File> read) with java web start in signed applet


Ben
HOME ยป Java

I have an applet which is launched by java web start launcher and it's signed too.
I need to do some file operation on the client machine with this applet and doing so an exception is throws. Below is the complete stacktrace


java.security.AccessControlException: access denied (java.io.FilePermission C:FMSELSVJOURNALARBRES554 read)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkRead(Unknown Source)
at java.io.File.isDirectory(Unknown Source)
at

Related to : java.security.AccessControlException: access denied (java.io.FilePermission <File> read) with java web start in signed applet
java.security.AccessControlException: access denied (java.io.FilePermission <File> read) with java web start in signed applet
Java

I have an applet which is launched by java web start launcher and it's signed too.
I need to do some file operation on the client machine with this applet and doing so an exception is throws. Below is the complete stacktrace


java.security.AccessControlException: access denied (java.io.FilePermission C:FMSELSVJOURNALARBRES554 read)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkRead(Unknown Source)
at java.io.File.isDirectory(Unknown Source)
at
“java.security.AccessControlException: access denied” executing a signed Java Applet
Java

I have a little Java Applet and I have an annoying issue. I have signed my JAR with my own keystore using jarsigner tool (following these instructions).


The Java Applet downloads a signed JAR and tries to launch it with an extended class of URLClassLoader. This JAR tries to execute this line of code:


ClassLoader.getSystemClassLoader().getResource("aResource");

It fails with a large stack trace finished by:


Caused by: java.security.AccessControlException: access denied ("java.lang.RuntimePermission" "getClassLoader")
at java.security.AccessControlContext.checkPermission(AccessControlCo
java.security.AccessControlException: access denied (java.io.FilePermission :
Java

i am creating an app on google app engine java in which i have to read content of a static file.there is a file in war directory named as myrsakey11.pk8 .


my code segment for reading the file is


public static PrivateKey getPrivateKey(String privKeyFileName) throws IOException {
File privKeyFile = new File(privKeyFileName);
FileInputStream fis = new FileInputStream(privKeyFile);
DataInputStream dis = new DataInputStream(fis);
byte[] privKeyBytes = new byte[(int) privKeyFile.length()];
try {
dis.read(privKeyBytes);
} catch (IOExc
java.security.AccessControlException: Access denied (java.io.FilePermission
Java

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?




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