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From Robby Pelssers <Robby.Pelss...@nxp.com>
Subject RE: REST view and weird error
Date Tue, 26 Feb 2013 15:24:58 GMT
http://robbypelssers.blogspot.nl/2013/02/debugging-circular-references-in-maps.html

Another useful lesson learned :)

-----Original Message-----
From: Thorsten Scherler [mailto:scherler@gmail.com] 
Sent: Tuesday, February 26, 2013 3:25 PM
To: dev@cocoon.apache.org
Subject: Re: REST view and weird error

On 02/26/2013 03:21 PM, Francesco Chicchiriccò wrote:
> On 26/02/2013 13:43, Thorsten Scherler wrote:
>> On 02/25/2013 02:10 PM, Thorsten Scherler wrote:
>>> ...
>>> Passing pipeline parameter as attribute: key=cocoon, value=[FAILED 
>>> toString()]
>>>
>>> in MessageFormatter.arrayFormat.
>>>
>>> still investigating
>>>
>>> salu2
>>>
>> Actually you can see it if you start the cocoon-sample block and 
>> request
>> http://localhost:8888/controller/abc/foo?reqparam=1
>>
>>
>> SLF4J: Failed toString() invocation on an object of type 
>> [java.util.HashMap] java.lang.StackOverflowError
>>      at
>> java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:631)
>>      at java.lang.StringBuilder.append(StringBuilder.java:224)
>>      at
>> org.apache.cocoon.configuration.MutableSettings.toString(MutableSetti
>> ngs.java:312)
>>
>>      at java.lang.String.valueOf(String.java:2902)
>>
>> It actually happens in STRenderer
>> [...]
>
> Hi Thorsten,
> as you have already found, the problem is the "cocoon" entry in the 
> sitemap's ObjectModel, always passed among parameters.
>
> I have been able to actually print the content of the "cocoon" entry 
> via common-collection's MapUtils:
>
>                 if (entry.getValue() instanceof Map) {
>                     MapUtils.verbosePrint(System.out, null, parameters);
>                 } else {
>                     System.out.println(entry.getValue());
>                 }
>
> I am about to commit a fix for the issue in STRenderer you've reported 
> above based on the usage of MapUtils#verbosePrint()
>

Nice you are a "monstruo".

Let us see whether that gets rid of the redundant data as well.

salu2

--
Thorsten Scherler <scherler.at.gmail.com> codeBusters S.L. - web based systems <consulting,
training and solutions>

http://www.codebusters.es/




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