[hibernate-issues] [Hibernate-JIRA] Resolved: (HSEARCH-21) NPE in SearchFactory while using different threads

[Emmanuel Bernard (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-21?page=all ]
     
Emmanuel Bernard resolved HSEARCH-21:
-------------------------------------

      Assign To: Emmanuel Bernard
     Resolution: Fixed
    Fix Version: FIRST

Fixed, 
But it really should not be used by the application.
ContextHelper.getSessionFactory(Session) should be used instead.

> NPE in SearchFactory while using different threads
> --------------------------------------------------
>
>          Key: HSEARCH-21
>          URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-21
>      Project: Hibernate Search
>         Type: Bug

>   Components: engine
>     Reporter: Sylvain Vieujot
>     Assignee: Emmanuel Bernard
>      Fix For: FIRST

>
> Original Estimate: 3 minutes
>         Remaining: 3 minutes
>
> java.lang.NullPointerException
> 	at org.hibernate.search.SearchFactory.getSearchFactory(SearchFactory.java:120)
> 	at com.seanergie.persistence.SessionsManager.getSearchFactory(SessionsManager.java:374)
> ...
> The contexts ThreadLocal is missing a get method. it is initialized by the first thread that uses it by the static statement, but for the next Thread it hasn't been initialized,  and so it contexts.get() returns null.
> Simple fix : add the get method as follows :
> public class SearchFactory {
> 	private static ThreadLocal<WeakHashMap<Configuration, SearchFactory>> contexts =
> 			new ThreadLocal<WeakHashMap<Configuration, SearchFactory>>(){
> 				@Override
> 				public WeakHashMap<Configuration,SearchFactory> get() {
> 					return new WeakHashMap<Configuration, SearchFactory>(2);
> 				}
> 			};
> 	static {
> 		Version.touch();
> 		contexts.set( new WeakHashMap<Configuration, SearchFactory>(2) );
> 	}

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