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From "Phil Steitz (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (POOL-271) Make standard use of NullPoinerException instead of IllegalArgumentException
Date Fri, 22 Aug 2014 15:32:14 GMT

     [ https://issues.apache.org/jira/browse/POOL-271?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Phil Steitz reopened POOL-271:
------------------------------


> Make standard use of NullPoinerException instead of IllegalArgumentException
> ----------------------------------------------------------------------------
>
>                 Key: POOL-271
>                 URL: https://issues.apache.org/jira/browse/POOL-271
>             Project: Commons Pool
>          Issue Type: Improvement
>    Affects Versions: 2.2
>            Reporter: Michael Osipov
>
> {{IllegalArgumentException}} is abused in several spots where a {{NullPointerException}}
is appropriate as per Java convention:
> {noformat}
> $ grep -r "throw new IllegalArgumentException" .
> ./org/apache/commons/pool2/impl/BaseGenericObjectPool.java:            throw new IllegalArgumentException(
> ./org/apache/commons/pool2/impl/BaseGenericObjectPool.java:            throw new IllegalArgumentException(
> ./org/apache/commons/pool2/impl/BaseGenericObjectPool.java:            throw new IllegalArgumentException(
> ./org/apache/commons/pool2/impl/LinkedBlockingDeque.java:        if (capacity <= 0)
throw new IllegalArgumentException();
> ./org/apache/commons/pool2/impl/LinkedBlockingDeque.java:            throw new IllegalArgumentException();
> ./org/apache/commons/pool2/impl/LinkedBlockingDeque.java://             throw new IllegalArgumentException();
> ./org/apache/commons/pool2/impl/GenericKeyedObjectPool.java:            throw new IllegalArgumentException("factory
may not be null");
> ./org/apache/commons/pool2/impl/GenericObjectPool.java:            throw new IllegalArgumentException("factory
may not be null");
> ./org/apache/commons/pool2/PoolUtils.java:            throw new IllegalArgumentException("keyedPool
must not be null.");
> ./org/apache/commons/pool2/PoolUtils.java:            throw new IllegalArgumentException("minIdle
must be non-negative.");
> ./org/apache/commons/pool2/PoolUtils.java:            throw new IllegalArgumentException("keyedPool
must not be null.");
> ./org/apache/commons/pool2/PoolUtils.java:            throw new IllegalArgumentException("key
must not be null.");
> ./org/apache/commons/pool2/PoolUtils.java:            throw new IllegalArgumentException("minIdle
must be non-negative.");
> ./org/apache/commons/pool2/PoolUtils.java:            throw new IllegalArgumentException("keys
must not be null.");
> ./org/apache/commons/pool2/PoolUtils.java:            throw new IllegalArgumentException("pool
must not be null.");
> ./org/apache/commons/pool2/PoolUtils.java:            throw new IllegalArgumentException("keyedPool
must not be null.");
> ./org/apache/commons/pool2/PoolUtils.java:            throw new IllegalArgumentException("key
must not be null.");
> ./org/apache/commons/pool2/PoolUtils.java:            throw new IllegalArgumentException("keys
must not be null.");
> ./org/apache/commons/pool2/PoolUtils.java:            throw new IllegalArgumentException("pool
must not be null.");
> ./org/apache/commons/pool2/PoolUtils.java:            throw new IllegalArgumentException("pool
must not be null.");
> ./org/apache/commons/pool2/PoolUtils.java:            throw new IllegalArgumentException("factor
must be positive.");
> ./org/apache/commons/pool2/PoolUtils.java:            throw new IllegalArgumentException("keyedPool
must not be null.");
> ./org/apache/commons/pool2/PoolUtils.java:            throw new IllegalArgumentException("factor
must be positive.");
> ./org/apache/commons/pool2/PoolUtils.java:                throw new IllegalArgumentException("pool
must not be null.");
> ./org/apache/commons/pool2/PoolUtils.java:                throw new IllegalArgumentException(
> ./org/apache/commons/pool2/PoolUtils.java:                throw new IllegalArgumentException("pool
must not be null.");
> ./org/apache/commons/pool2/PoolUtils.java:                throw new IllegalArgumentException(
> ./org/apache/commons/pool2/PoolUtils.java:                throw new IllegalArgumentException("factory
must not be null.");
> ./org/apache/commons/pool2/PoolUtils.java:                throw new IllegalArgumentException(
> ./org/apache/commons/pool2/PoolUtils.java:                throw new IllegalArgumentException(
> {noformat}
> Most of the hits apply and should throw a {{NullPointerException}}. There is a similar
issue with Commons Lang. Alternatively, the {{ValidationUtils}} from Commons Lang should be
privately imported (shaded) which do the right thing.



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