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Posted to issues@commons.apache.org by "SHIN HWEI TAN (Created) (JIRA)" <ji...@apache.org> on 2011/10/26 22:23:32 UTC

[jira] [Created] (COLLECTIONS-384) Inconsistent Javadoc comment and code for synchronizedMap(Map) in org.apache.commons.collections.MapUtils

Inconsistent Javadoc comment and code for synchronizedMap(Map) in org.apache.commons.collections.MapUtils
---------------------------------------------------------------------------------------------------------

                 Key: COLLECTIONS-384
                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-384
             Project: Commons Collections
          Issue Type: Bug
          Components: Collection
    Affects Versions: 3.2, 3.1, 3.0
         Environment: Platform independent
            Reporter: SHIN HWEI TAN
            Priority: Minor


The Javadoc comment below states that the method "throws IllegalArgumentException if the map is null":
    /**
     ...
     * @param map  the map to synchronize, must not be null
     * @return a synchronized map backed by the given map
     * @throws IllegalArgumentException  if the map is null
     */
    public static Map synchronizedMap(Map map) {
        return Collections.synchronizedMap(map);
    }

However, the method throws NullPointerException instead of IllegalArgumentException when called with null.

Suggested Fixes:
1. Add code "if (map == null) throw IllegalArgumentException();" at the beginning of the method body.
or
2. Change "@throws IllegalArgumentException  if the map is null" to "@throws NullPointerException  if the map is null".
or
3. Remove the entire "@throws IllegalArgumentException  if the map is null".

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[jira] [Updated] (COLLECTIONS-384) Inconsistent Javadoc comment and code for synchronizedMap(Map) in org.apache.commons.collections.MapUtils

Posted by "SHIN HWEI TAN (Updated) (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/COLLECTIONS-384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

SHIN HWEI TAN updated COLLECTIONS-384:
--------------------------------------

    Priority: Major  (was: Critical)
    
> Inconsistent Javadoc comment and code for synchronizedMap(Map) in org.apache.commons.collections.MapUtils
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: COLLECTIONS-384
>                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-384
>             Project: Commons Collections
>          Issue Type: Bug
>          Components: Collection
>    Affects Versions: 3.0, 3.1, 3.2
>         Environment: Platform independent
>            Reporter: SHIN HWEI TAN
>              Labels: code, javadoc, synchronizedMap
>   Original Estimate: 5m
>  Remaining Estimate: 5m
>
> The Javadoc comment below states that the method "throws IllegalArgumentException if the map is null":
>     /**
>      ...
>      * @param map  the map to synchronize, must not be null
>      * @return a synchronized map backed by the given map
>      * @throws IllegalArgumentException  if the map is null
>      */
>     public static Map synchronizedMap(Map map) {
>         return Collections.synchronizedMap(map);
>     }
> However, the method throws NullPointerException instead of IllegalArgumentException when called with null.
> Suggested Fixes:
> 1. Add code "if (map == null) throw IllegalArgumentException();" at the beginning of the method body.
> or
> 2. Change "@throws IllegalArgumentException  if the map is null" to "@throws NullPointerException  if the map is null".
> or
> 3. Remove the entire "@throws IllegalArgumentException  if the map is null".

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[jira] [Updated] (COLLECTIONS-384) Inconsistent Javadoc comment and code for synchronizedMap(Map) in org.apache.commons.collections.MapUtils

Posted by "Thomas Neidhart (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/COLLECTIONS-384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thomas Neidhart updated COLLECTIONS-384:
----------------------------------------

    Fix Version/s: 4.0
    
> Inconsistent Javadoc comment and code for synchronizedMap(Map) in org.apache.commons.collections.MapUtils
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: COLLECTIONS-384
>                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-384
>             Project: Commons Collections
>          Issue Type: Bug
>          Components: Collection
>    Affects Versions: 3.0, 3.1, 3.2
>         Environment: Platform independent
>            Reporter: SHIN HWEI TAN
>              Labels: code, javadoc, synchronizedMap
>             Fix For: 4.0
>
>   Original Estimate: 5m
>  Remaining Estimate: 5m
>
> The Javadoc comment below states that the method "throws IllegalArgumentException if the map is null":
>     /**
>      ...
>      * @param map  the map to synchronize, must not be null
>      * @return a synchronized map backed by the given map
>      * @throws IllegalArgumentException  if the map is null
>      */
>     public static Map synchronizedMap(Map map) {
>         return Collections.synchronizedMap(map);
>     }
> However, the method throws NullPointerException instead of IllegalArgumentException when called with null.
> Suggested Fixes:
> 1. Add code "if (map == null) throw IllegalArgumentException();" at the beginning of the method body.
> or
> 2. Change "@throws IllegalArgumentException  if the map is null" to "@throws NullPointerException  if the map is null".
> or
> 3. Remove the entire "@throws IllegalArgumentException  if the map is null".

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[jira] [Updated] (COLLECTIONS-384) Inconsistent Javadoc comment and code for synchronizedMap(Map) in org.apache.commons.collections.MapUtils

Posted by "SHIN HWEI TAN (Updated) (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/COLLECTIONS-384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

SHIN HWEI TAN updated COLLECTIONS-384:
--------------------------------------

    Priority: Critical  (was: Minor)
    
> Inconsistent Javadoc comment and code for synchronizedMap(Map) in org.apache.commons.collections.MapUtils
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: COLLECTIONS-384
>                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-384
>             Project: Commons Collections
>          Issue Type: Bug
>          Components: Collection
>    Affects Versions: 3.0, 3.1, 3.2
>         Environment: Platform independent
>            Reporter: SHIN HWEI TAN
>            Priority: Critical
>              Labels: code, javadoc, synchronizedMap
>   Original Estimate: 5m
>  Remaining Estimate: 5m
>
> The Javadoc comment below states that the method "throws IllegalArgumentException if the map is null":
>     /**
>      ...
>      * @param map  the map to synchronize, must not be null
>      * @return a synchronized map backed by the given map
>      * @throws IllegalArgumentException  if the map is null
>      */
>     public static Map synchronizedMap(Map map) {
>         return Collections.synchronizedMap(map);
>     }
> However, the method throws NullPointerException instead of IllegalArgumentException when called with null.
> Suggested Fixes:
> 1. Add code "if (map == null) throw IllegalArgumentException();" at the beginning of the method body.
> or
> 2. Change "@throws IllegalArgumentException  if the map is null" to "@throws NullPointerException  if the map is null".
> or
> 3. Remove the entire "@throws IllegalArgumentException  if the map is null".

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[jira] [Commented] (COLLECTIONS-384) Inconsistent Javadoc comment and code for synchronizedMap(Map) in org.apache.commons.collections.MapUtils

Posted by "Gary D. Gregory (Commented) (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/COLLECTIONS-384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13139436#comment-13139436 ] 

Gary D. Gregory commented on COLLECTIONS-384:
---------------------------------------------

I picked option (3) because {{Collections.synchronizedMap(map);}} says nothing on the topic so I do not think it should be part of our contract. 

In fact our method seems superfluus. Why use it instead of Collections.synchronizedMap(map)?
                
> Inconsistent Javadoc comment and code for synchronizedMap(Map) in org.apache.commons.collections.MapUtils
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: COLLECTIONS-384
>                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-384
>             Project: Commons Collections
>          Issue Type: Bug
>          Components: Collection
>    Affects Versions: 3.0, 3.1, 3.2
>         Environment: Platform independent
>            Reporter: SHIN HWEI TAN
>              Labels: code, javadoc, synchronizedMap
>   Original Estimate: 5m
>  Remaining Estimate: 5m
>
> The Javadoc comment below states that the method "throws IllegalArgumentException if the map is null":
>     /**
>      ...
>      * @param map  the map to synchronize, must not be null
>      * @return a synchronized map backed by the given map
>      * @throws IllegalArgumentException  if the map is null
>      */
>     public static Map synchronizedMap(Map map) {
>         return Collections.synchronizedMap(map);
>     }
> However, the method throws NullPointerException instead of IllegalArgumentException when called with null.
> Suggested Fixes:
> 1. Add code "if (map == null) throw IllegalArgumentException();" at the beginning of the method body.
> or
> 2. Change "@throws IllegalArgumentException  if the map is null" to "@throws NullPointerException  if the map is null".
> or
> 3. Remove the entire "@throws IllegalArgumentException  if the map is null".

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[jira] [Resolved] (COLLECTIONS-384) Inconsistent Javadoc comment and code for synchronizedMap(Map) in org.apache.commons.collections.MapUtils

Posted by "Gary D. Gregory (Resolved) (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/COLLECTIONS-384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gary D. Gregory resolved COLLECTIONS-384.
-----------------------------------------

    Resolution: Fixed

Committed revision 1195031.
                
> Inconsistent Javadoc comment and code for synchronizedMap(Map) in org.apache.commons.collections.MapUtils
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: COLLECTIONS-384
>                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-384
>             Project: Commons Collections
>          Issue Type: Bug
>          Components: Collection
>    Affects Versions: 3.0, 3.1, 3.2
>         Environment: Platform independent
>            Reporter: SHIN HWEI TAN
>              Labels: code, javadoc, synchronizedMap
>   Original Estimate: 5m
>  Remaining Estimate: 5m
>
> The Javadoc comment below states that the method "throws IllegalArgumentException if the map is null":
>     /**
>      ...
>      * @param map  the map to synchronize, must not be null
>      * @return a synchronized map backed by the given map
>      * @throws IllegalArgumentException  if the map is null
>      */
>     public static Map synchronizedMap(Map map) {
>         return Collections.synchronizedMap(map);
>     }
> However, the method throws NullPointerException instead of IllegalArgumentException when called with null.
> Suggested Fixes:
> 1. Add code "if (map == null) throw IllegalArgumentException();" at the beginning of the method body.
> or
> 2. Change "@throws IllegalArgumentException  if the map is null" to "@throws NullPointerException  if the map is null".
> or
> 3. Remove the entire "@throws IllegalArgumentException  if the map is null".

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[jira] [Commented] (COLLECTIONS-384) Inconsistent Javadoc comment and code for synchronizedMap(Map) in org.apache.commons.collections.MapUtils

Posted by "Hudson (Commented) (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/COLLECTIONS-384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13139439#comment-13139439 ] 

Hudson commented on COLLECTIONS-384:
------------------------------------

Integrated in commons-collections #2 (See [https://builds.apache.org/job/commons-collections/2/])
    [COLLECTIONS-384] Inconsistent Javadoc comment and code for synchronizedMap(Map) in org.apache.commons.collections.MapUtils.

ggregory : http://svn.apache.org/viewvc/?view=rev&rev=1195031
Files : 
* /commons/proper/collections/trunk/src/java/org/apache/commons/collections/MapUtils.java

                
> Inconsistent Javadoc comment and code for synchronizedMap(Map) in org.apache.commons.collections.MapUtils
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: COLLECTIONS-384
>                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-384
>             Project: Commons Collections
>          Issue Type: Bug
>          Components: Collection
>    Affects Versions: 3.0, 3.1, 3.2
>         Environment: Platform independent
>            Reporter: SHIN HWEI TAN
>              Labels: code, javadoc, synchronizedMap
>   Original Estimate: 5m
>  Remaining Estimate: 5m
>
> The Javadoc comment below states that the method "throws IllegalArgumentException if the map is null":
>     /**
>      ...
>      * @param map  the map to synchronize, must not be null
>      * @return a synchronized map backed by the given map
>      * @throws IllegalArgumentException  if the map is null
>      */
>     public static Map synchronizedMap(Map map) {
>         return Collections.synchronizedMap(map);
>     }
> However, the method throws NullPointerException instead of IllegalArgumentException when called with null.
> Suggested Fixes:
> 1. Add code "if (map == null) throw IllegalArgumentException();" at the beginning of the method body.
> or
> 2. Change "@throws IllegalArgumentException  if the map is null" to "@throws NullPointerException  if the map is null".
> or
> 3. Remove the entire "@throws IllegalArgumentException  if the map is null".

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