Update the relevant ProtectionDomains with the Principals
from the
Subject associated with this
SubjectDomainCombiner.
A new ProtectionDomain instance is created
for each ProtectionDomain in the
currentDomains array. Each new ProtectionDomain
instance is created using the CodeSource,
Permissions and ClassLoader
from the corresponding ProtectionDomain in
currentDomains, as well as with the Principals from
the Subject associated with this
SubjectDomainCombiner.
All of the newly instantiated ProtectionDomains are
combined into a new array. The ProtectionDomains from the
assignedDomains array are appended to this new array,
and the result is returned.
Note that optimizations such as the removal of duplicate
ProtectionDomains may have occurred.
In addition, caching of ProtectionDomains may be permitted.
Returns:
a new array consisting of the updated ProtectionDomains,
or null.
Parameters:
- currentDomains - the ProtectionDomains associated with the
current execution Thread, up to the most recent
privileged ProtectionDomain.
The ProtectionDomains are are listed in order of execution,
with the most recently executing ProtectionDomain
residing at the beginning of the array. This parameter may
be null if the current execution Thread
has no associated ProtectionDomains.
- assignedDomains - the ProtectionDomains inherited from the
parent Thread, or the ProtectionDomains from the
privileged context, if a call to
AccessController.doPrivileged(..., context)
had occurred This parameter may be null
if there were no ProtectionDomains inherited from the
parent Thread, or from the privileged context.
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