Author: epbernard Date: 2008-09-03 23:16:02 -0400 (Wed, 03 Sep 2008) New Revision: 15152 Modified: search/trunk/src/java/org/hibernate/search/filter/CachingWrapperFilter.java Log: Make CachingWrapperFilter thread safe Modified: search/trunk/src/java/org/hibernate/search/filter/CachingWrapperFilter.java =================================================================== --- search/trunk/src/java/org/hibernate/search/filter/CachingWrapperFilter.java 2008-08-29 18:42:57 UTC (rev 15151) +++ search/trunk/src/java/org/hibernate/search/filter/CachingWrapperFilter.java 2008-09-04 03:16:02 UTC (rev 15152) @@ -33,7 +33,7 @@ */ private transient SoftLimitMRUCache cache; - private Filter filter; + private final Filter filter; /** * @param filter @@ -58,6 +58,7 @@ cache = new SoftLimitMRUCache(size); } + //memory barrier ensure cache == null will not always stay true on concurrent threads synchronized (cache) { // check cache BitSet cached = (BitSet) cache.get(reader); if (cached != null) {