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  1. Infinispan
  2. ISPN-6045

TransactionAwareKeyCloseableIterator.remove uses previousValue which is never set

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      TransactionAwareKeyCloseableIterator.remove is implemented as

      cache.remove(previousValue);

      But looking at the previousValue it never gets set. This results then in 

      java.lang.NullPointerException: Null keys are not supported!
	at org.infinispan.cache.impl.CacheImpl.assertKeyNotNull(CacheImpl.java:224)
	at org.infinispan.cache.impl.CacheImpl.remove(CacheImpl.java:547)
	at org.infinispan.cache.impl.CacheImpl.remove(CacheImpl.java:543)
	at org.infinispan.interceptors.TxInterceptor$TransactionAwareKeyCloseableIterator.remove(TxInterceptor.java:568)

      I encountered this when trying to switch infinispan from 7.2 to 8.1 in conjunction with hibernate-infinispan 4.3 which does the following code to clear the cache:

      	public static void removeAll(AdvancedCache cache) {
		try {
			Iterator it = cache.keySet().iterator();
			while (it.hasNext()) {
				it.next(); // Necessary to get next element
				it.remove();
				}
		} catch (UnsupportedOperationException e) {
			// Fallback on using clear for older version
			cache.clear();
		}
	}

      from https://github.com/hibernate/hibernate-orm/blob/4.3/hibernate-infinispan/src/main/java/org/hibernate/cache/infinispan/util/Caches.java

              wburns@redhat.com Will Burns
              tarioch Patrick Ruckstuhl (Inactive)
              Archiver:
              rhn-support-adongare Amol Dongare

                Created:
                Updated:
                Resolved:
                Archived: