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From "Warren Chen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (POOL-248) GenericObjectPool.returnObject() is NOT throwing IllegalStateException for object has already been returned
Date Wed, 29 Jan 2014 04:32:09 GMT
Warren Chen created POOL-248:
--------------------------------

             Summary: GenericObjectPool.returnObject() is NOT throwing IllegalStateException
for object has already been returned
                 Key: POOL-248
                 URL: https://issues.apache.org/jira/browse/POOL-248
             Project: Commons Pool
          Issue Type: Bug
    Affects Versions: 2.1
            Reporter: Warren Chen


When GenericObjectPool is created using AbandonedConfig, the pool is NOT throwing "IllegalStateException:
Object has already been returned to this pool or is invalid" for object has already been returned.

final GenericObjectPool<String> pool = new GenericObjectPool<String>(
				new SimpleFactory(), new GenericObjectPoolConfig(),
				new AbandonedConfig());

		String obj1 = pool.borrowObject();
		System.out.println("after borrowing obj1");
		System.out.println("numActive=" + pool.getNumActive());
		System.out.println("numIdle=" + pool.getNumIdle());

		System.out.println("return obj1");
		pool.returnObject(obj1);
		System.out.println("numActive=" + pool.getNumActive());
		System.out.println("numIdle=" + pool.getNumIdle());
		
		System.out.println("return obj1 again");
		pool.returnObject(obj1);
		System.out.println("numActive=" + pool.getNumActive());
		System.out.println("numIdle=" + pool.getNumIdle());

Output:
after borrowing obj1
numActive=1
numIdle=0
return obj1
numActive=0
numIdle=1
return obj1 again
numActive=-1
numIdle=2



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