[POOL-283] 'Object has already been returned to this pool or is invalid' for collections

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2
• Fix Version/s: 2.4.1
• Assignee: Unassigned
• Reporter: Valentin Mayamsin
• Created: 23/Jan/15 19:29
• Updated: 01/Jun/15 15:28
• Resolved: 12/May/15 13:35

Description

This test throws exception:

 GenericObjectPoolConfig config = new GenericObjectPoolConfig ();
        config.setMaxTotal ( 2 );

        GenericObjectPool<Set> setsPool = new GenericObjectPool<> ( new BasePooledObjectFactory<Set> ()
        {
            @Override
            public Set create () throws Exception
            {
                return new HashSet();
            }

            @Override
            public PooledObject<Set> wrap ( Set o )
            {
                return new DefaultPooledObject<> ( o );
            }

            @Override
            public void passivateObject ( PooledObject<Set> p ) throws Exception
            {
                p.getObject ().clear ();
                super.passivateObject ( p );
            }
        }, config );

        final Set set1 = setsPool.borrowObject ();

        final Set set2 = setsPool.borrowObject ();


        setsPool.returnObject ( set1 );
        setsPool.returnObject ( set2 ); // this throws java.lang.IllegalStateException: Object has already been retured to this pool or is invalid