question: private static void verifyWriteSetNotFound ( final BTree btree ) { log . info ( "" ) ; for ( int i = 0 ; i < 1000 ; i ++ ) { if ( btree . contains ( i ) ) { throw new RuntimeException ( "Not expecting: key=" + i ) ; } } }
target:  Verify that the write set is not found (no keys in [0:1000)).