7081804: Remove cause field from javax.xml.crypto.NoSuchMechnismException

Sean Mullan sean.mullan at oracle.com
Sat Oct 1 16:19:44 UTC 2011

On 9/30/11 2:15 PM, Sebastian Sickelmann wrote:
>>> I think I know the reason. If you allow initCause to be called when a 
>>> cause is
>>> not initially provided, then getCause will still return null, which 
>>> seems wrong.
>> getCause() of Throwable and all classes that doesn't had a chaining 
>> before
>> Throwable introduces it, doing this excact this way. Whats wrong on this?
>>         return (cause==this ? null : cause); // Where the initial 
>> value(uninitialied) of cause is this.
> Does this make sense? I actually not sure i understand you right.

The following code:

        KeySelectorException kse = new KeySelectorException("foo");
        kse.initCause(new Exception("bar"));

prints null as the cause, even though initCause was subsequently called. Do you
see my concern?

> http://dl.dropbox.com/u/43692695/oss-patches/openjdk8/NoSuchMechanismException/7011804_4/index.html


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