Github user ahgittin commented on a diff in the pull request:

    https://github.com/apache/incubator-brooklyn/pull/850#discussion_r37578140
  
    --- Diff: 
core/src/main/java/org/apache/brooklyn/core/catalog/CatalogPredicates.java ---
    @@ -39,21 +39,65 @@
     public class CatalogPredicates {
     
         public static <T,SpecT> Predicate<CatalogItem<T,SpecT>> 
isCatalogItemType(final CatalogItemType ciType) {
    -        return new Predicate<CatalogItem<T,SpecT>>() {
    +        // TODO PERSISTENCE WORKAROUND kept anonymous function in case 
referenced in persisted state
    +        new Predicate<CatalogItem<T,SpecT>>() {
                 @Override
                 public boolean apply(@Nullable CatalogItem<T,SpecT> item) {
                     return (item != null) && item.getCatalogItemType()==ciType;
                 }
             };
    +        return new CatalogItemTypeEqualTo<T, SpecT>(ciType);
    +    }
    +
    +    private static class CatalogItemTypeEqualTo<T,SpecT> implements 
Predicate<CatalogItem<T,SpecT>> {
    +        private final CatalogItemType ciType;
    +        
    +        public CatalogItemTypeEqualTo(final CatalogItemType ciType) {
    +            this.ciType = ciType;
    +        }
    +        @Override
    +        public boolean apply(@Nullable CatalogItem<T,SpecT> item) {
    +            return (item != null) && item.getCatalogItemType()==ciType;
    +        }
         }
     
         public static <T,SpecT> Predicate<CatalogItem<T,SpecT>> 
deprecated(final boolean deprecated) {
    -        return new Predicate<CatalogItem<T,SpecT>>() {
    +        // TODO PERSISTENCE WORKAROUND kept anonymous function in case 
referenced in persisted state
    --- End diff --
    
    as above, `@since`


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