better method name

fix occupied tracking bug

Author: JohnMount

Count/src/com/mzlabs/count/op/SolnCache.java

@@ -19,7 +19,7 @@ public BigInteger evalCached(final IntVecFn f, final IntVec x) {
 		final RecNode newHolder = new RecNode(x.get(x.dim()-1));
 		synchronized (newHolder) {
 			synchronized(store) {
-				cached = store.lookup(x,newHolder);
+				cached = store.lookupAlloc(x,newHolder);
 			}
 			// newHolder now potentially visible to other threads (as it is in the cache and we released the mutex)
 			// keep newHolder mutex so we can fill in value before anybody else looks

Count/src/com/mzlabs/count/op/impl/RecNode.java

@@ -85,7 +85,7 @@ private void put(final RecNode x) {
 	 * @param newNode not null with key==x.get(x.dim()-1) (possible mutex locked)
 	 * @return terminal node to hold value (newNode if there was allocation)
 	 */
-	private static RecNode lookup(RecNode nd, final IntVec x, final RecNode newNode) {
+	private static RecNode lookupAlloc(RecNode nd, final IntVec x, final RecNode newNode) {
 		final int n = x.dim();
 		if(n<=0) {
 			throw new IllegalArgumentException("empty x");
@@ -122,12 +122,13 @@ private static RecNode lookup(RecNode nd, final IntVec x, final RecNode newNode)
 	 * @param newNode
 	 * @return
 	 */
-	public RecNode lookup(final IntVec x, final RecNode newNode) {
-		return lookup(this,x,newNode);
+	public RecNode lookupAlloc(final IntVec x, final RecNode newNode) {
+		return lookupAlloc(this,x,newNode);
 	}
 
 	public void clear() {
 		map = null;
+		noccupied = 0;
 	}
 
 	public long size() {