Convenience method that simplifies retrieval of a thread-bound Subject. If there is no
Subject bound to the thread, this method returns <tt>null</tt>. It is merely a convenient wrapper
for the following:
<p/>
<code>return (Subject)get( SUBJECT_KEY );</code>
<p/>
This method only returns the bound value if it exists - it does not remove it
from the thread. To remove it, one must call {@link #unbindSubject() unbindSubject()} instead.
@return the Subject object bound to the thread, or <tt>null</tt> if there isn't one bound.
Convenience method that simplifies retrieval of a thread-bound Subject. If there is no Subject bound to the thread, this method returns <tt>null</tt>. It is merely a convenient wrapper for the following: <p/> <code>return (Subject)get( SUBJECT_KEY );</code> <p/> This method only returns the bound value if it exists - it does not remove it from the thread. To remove it, one must call {@link #unbindSubject() unbindSubject()} instead.
@return the Subject object bound to the thread, or <tt>null</tt> if there isn't one bound.