question: records a mapping between a client 's unique identifier and its security context . concode_field_sep ClientStore singleton concode_elem_sep HashMap uid2ssc concode_elem_sep HashMap uid2ttl concode_elem_sep Object lock concode_field_sep boolean isAlive concode_elem_sep ClientStore instance concode_elem_sep SecurityContext restoreSession concode_elem_sep void invalidateSession
target: void function ( final String arg0 , final int arg1 , final SecurityContext arg2 ) { synchronized ( lock ) { uid2ssc . put ( arg0 , arg2 ) ; uid2ttl . put ( arg0 , new StoreEntry ( arg1 ) ) ; } }