create test;
lock test read;
try_lock test read;
unlock test read;
unlock test read;
lock test write;
try_lock test write;
unlock test write;
lock test upgrade;
try_lock test upgrade;
unlock test upgrade;
lock test intention_read;
try_lock test intention_read;
unlock test intention_read;
unlock test intention_read;
lock test intention_write;
try_lock test intention_write;
unlock test intention_write;
create ls2;
unlock ls2 write;
exception IDL:omg.org/CosConcurrencyControl/LockNotHeld:1.0;