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Under Java Security Manager, accessing a file inside a jar

Sandeep P Kulkarni
Greenhorn

Joined: Sep 28, 2007
Posts: 5
How to read a file[resource] inside jar under Java Security Manager?
Ex- in myApp.jar , I want to read file placed under com/mystuff/queries/abc.sql
myApp.jar
|
|-com/mystuff/queries/abc.sql


I am using Class.class.getResourceAsStream("")to read the content of a file which is packaged inside a jar. This works fine if not run under Java Security manager. This fails under Java Security Manager. I am getting a NULL InputStream under security manager. Probably I need to give "read" permission to "queries" folder recursively.

What is the syntax to be used in policy file to give permission recursively to folder inside a jar?

OR Please let me know if this is the correct syntax-
Norm Radder
Ranch Hand

Joined: Aug 10, 2005
Posts: 685
Here's a copy of an entry from my .java.policy file:
grant codeBase "file:/D:/JavaDevelopment/Testing/ForumQuestions/-" {
permission java.io.FilePermission "C:/autoexec.bat", "read";
permission java.lang.RuntimePermission "queuePrintJob";
permission java.awt.AWTPermission "readDisplayPixels";
};
Sandeep P Kulkarni
Greenhorn

Joined: Sep 28, 2007
Posts: 5
Hi Norm ,

I want to give permissions to file packaged inside a jar.
 
Consider Paul's rocket mass heater.
 
subject: Under Java Security Manager, accessing a file inside a jar