[10] Review request for 8154405: AccessControlException by URLPermission check

[Dmitry Markov]

Hello,

Could you review a fix for jdk10, please?

 bug: https://bugs.openjdk.java.net/browse/JDK-8154405
 webrev: http://cr.openjdk.java.net/~dmarkov/8154405/webrev.00/

Problem description:
The current implementation of Toolkit.getImage(URL url) and 
Toolkit.createImage(URL url) uses URLPermission to perform security checks. 
However the documentation says that security manager’s method checkPermission() 
is called with url.openConnection().getPermission() permission and 
url.openConnection().getPermission() returns SocketPermission. So there is an 
inconsistency between the documentation and the implementation.

Fix:
It is necessary to update the description of the methods to get rid of 
confusing statements.

Thanks,
Dmitry