defensive-coding-guide/en-US/snippets/Java-SecurityManager-Unprivileged.adoc
Brian (bex) Exelbierd 2e8934be40 Converted to AsciiBinder
This required moving files around in the repository and shifting
from a master.adoc structure to _topic_map.yml, etc.

README and Makefile modified slightly to reflect new build process
2018-02-08 13:08:40 +01:00

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763 B
Text

Permissions permissions = new Permissions();
ProtectionDomain protectionDomain =
new ProtectionDomain(null, permissions);
AccessControlContext context = new AccessControlContext(
new ProtectionDomain[] { protectionDomain });
// This is expected to succeed.
try (FileInputStream in = new FileInputStream(path)) {
System.out.format("FileInputStream: %s%n", in);
}
AccessController.doPrivileged(new PrivilegedExceptionAction<Void>() {
@Override
public Void run() throws Exception {
// This code runs with reduced privileges and is
// expected to fail.
try (FileInputStream in = new FileInputStream(path)) {
System.out.format("FileInputStream: %s%n", in);
}
return null;
}
}, context);