Hi,
Could I please have a review of this small fix.
webrev: http://cr.openjdk.java.net/~sgabdura/8057564/webrev.00/
bug: https://jbs.oracle.com/bugs/browse/JDK-8057564
Problem description:
On Windows 7 with User Account Control (UAC) enabled, JVM hangs at getAgentProperties or
getSystemProperties after attaching from a "high" IntegrityLevel JVM to a
"medium" IntegrityLevel JVM, using Attach API:
attachedVM = com.sun.tools.attach.VirtualMachine.attach(pid);
final Properties systemProperties = attachedVM.getSystemProperties();
Root cause:
In WindowsVirtualMachine.attach is implemented with named pipes.
If named pipe was created with default security properties then windows will not allow process
with"medium" IntegrityLevel to be attached to a processwith "high"
IntegrityLevel.
Solution:
Create security properties that allow requested connection.
I'm going to push this fix into JDK9, 8 and 7.
BR,
Sergey
