On Sat, Oct 4, 2008 at 12:37 AM, Matthew Toseland
<[EMAIL PROTECTED]> wrote:
> On Thursday 02 October 2008 12:30, [EMAIL PROTECTED] wrote:
>> Author: j16sdiz
>> Date: 2008-10-02 11:30:51 +0000 (Thu, 02 Oct 2008)
>> New Revision: 22908
>>
>> Modified:
>> trunk/freenet/src/freenet/support/MultiValueTable.java
>> Log:
>> Generic for MultiValueTable
>>
>> Modified: trunk/freenet/src/freenet/support/MultiValueTable.java
>> ===================================================================
>> --- trunk/freenet/src/freenet/support/MultiValueTable.java 2008-10-01
> 21:59:33 UTC (rev 22907)
>> +++ trunk/freenet/src/freenet/support/MultiValueTable.java 2008-10-02
> 11:30:51 UTC (rev 22908)
> ...
>>
>> - public Object[] getArray(Object key) {
>> + public V[] getArray(K key) {
>> synchronized (table) {
>> - Vector v = (Vector) table.get(key);
>> + Vector<V> v = table.get(key);
>> if (v == null)
>> return null;
>> else {
>> - Object[] r = new Object[v.size()];
>> + V[] r = (V[])new Object[v.size()];
>
> This doesn't work.
This does not work for normal array.
A generic V[] is a Object[] in its underlying structure.
(yes, that's why people hate java generic -- too many special cases)
>
> bsh % Object[] objects = new Object[5];
> bsh % Long[] longs = (Long[]) objects;
> // Error: // Uncaught Exception: Typed variable declaration : at Line: 2 : in
> file: <unknown file> : ( Long [ ] ) objects
>
> Target exception: java.lang.ClassCastException: Cannot cast java.lang.Object
> [] to java.lang.Long []
>
> bsh % Long[] longs = (Long[]) objects;
>
>
>> v.copyInto(r);
>> return r;
>> }
>> }
>> }
>>
>
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