only trim if size != capacity

primitiveCollections/src/main/java/org/lucares/collections/IntList.java

@@ -584,7 +584,7 @@ public final class IntList implements Serializable, Cloneable {
 	public void trim() {
 		if (size == 0) {
 			data = EMPTY_ARRAY;
-		} else {
+		} else if (size != data.length) {
 			data = Arrays.copyOf(data, size);
 		}
 	}