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From Davanum Srinivas <dava...@gmail.com>
Subject Re: About harmony running felix
Date Tue, 16 Jun 2009 10:12:43 GMT
Karl,

Can you please JIRA-it with a stripped down test case?

thanks,
dims

On 06/16/2009 04:19 AM, Karl Pauls wrote:
> Thanks, I did figure that one out already. Sorry for the noise (the
> difficulty was just to get it to work with eclipse running on my mac
> and harmony inside windows on virtual box :-).
>
> I now can see what is going on and I do think it is a bug in harmony.
> I might be able to workaround it in felix for the time being but the
> issue is this:
>
> URLStreamHandler.toExternalForm() does assume that the url has a file
> part and that it is not null (there is even a comment saying so). I
> think that is not a valid assumption and in this case it is what is
> causing the problem. We do a toExternalForm on a url that has only the
> schema set (not the file part). In this case the
> URLStreamHandler.toExternalForm() is using the result of a call to
> URL.getFile() without checking whether it is null or not and
> subsequently, is throwing a NPE. That doesn't happen on sun and is the
> problem for felix.
>
> regards,
>
> Karl
>
> On Tue, Jun 16, 2009 at 5:52 AM, Nathan Beyer<nbeyer@gmail.com>  wrote:
>> On Mon, Jun 15, 2009 at 3:42 AM, Karl Pauls<karlpauls@gmail.com>  wrote:
>>> Already did. Doesn't fix it.
>>>
>>> We do quite some magic in regard to the URLHandlers inside felix so
>>> I'm not surprised that we run into some issues on harmony but this one
>>> is odd as it seems to get down to an NPE inside URL.class at a place
>>> where this just doesn't seem possible with the current trunk. Granted,
>>> due to the magic it isn't that clear that this is the real problem. It
>>> might be just a side-effect. Is there a way to hook-up harmony to the
>>> eclipse debugger (i.e., have felix run on top of harmony and connect a
>>> normal remote debugger)?
>> It should work just like any other remote process debug. Just launch
>> Felix+Harmony with the standard debug options to listen on a socket
>> and suspend on startup, then connect to it from Eclipse.
>>
>> -Nathan
>>> regards,
>>>
>>> Karl
>>>
>>> On Mon, Jun 15, 2009 at 12:24 AM, Nathan Beyer<nbeyer@gmail.com>  wrote:
>>>> Try out the latest milestone that just release last week -
>>>> http://harmony.apache.org/download.cgi
>>>>
>>>> 5M10 should be pretty close to trunk right now.
>>>>
>>>> -Nathan
>>>>
>>>> On Sun, Jun 14, 2009 at 3:42 PM, Karl Pauls<karlpauls@gmail.com>  wrote:
>>>>> Is it possible to download a build of the current trunk somewhere? I'd
>>>>> like to look into this issue...
>>>>>
>>>>> regards,
>>>>>
>>>>> Karl
>>>>>
>>>>> On Tue, Jun 9, 2009 at 5:30 AM, Nathan Beyer<ndbeyer@apache.org>
 wrote:
>>>>>> That's somewhat old. I don't suppose you could to a fresh build from
>>>>>> HEAD and try again - at least a fresh build of the classlib. The
>>>>>> change I'm thinking of probably isn't in the build you're using.
>>>>>>
>>>>>> -Nathan
>>>>>>
>>>>>> On Mon, Jun 8, 2009 at 9:49 PM, galaxy<tian.galaxy@gmail.com>
 wrote:
>>>>>>> It's , harmony-jre-761593,
>>>>>>>
>>>>>>> 2009/6/9 Nathan Beyer<ndbeyer@apache.org>
>>>>>>>
>>>>>>>> On Mon, Jun 8, 2009 at 12:46 AM, galaxy<tian.galaxy@gmail.com>
 wrote:
>>>>>>>>> Hi
>>>>>>>>> It's about running felix in harmony .When we run felix
in harmony with
>>>>>>>> the
>>>>>>>>> felix-cache there , it's OK.
>>>>>>>>> But there will be errors when running without the felix-cache
.That means
>>>>>>>>> after deleting felix-cache , harmony runtime fails to
install
>>>>>>>>> the bundles set to be auto-installed .While with sun
jdk ,it runs well
>>>>>>>> .That
>>>>>>>>> is to say harmony runtime is only able to find the cache
dir which is
>>>>>>>>> specified by
>>>>>>>>> "felix.cache.rootdir" in the config.properties file (mine
is
>>>>>>>>> "felix.cache.rootdir=D:/JavaWorld/Felix") but not the
bundle which is the
>>>>>>>>> specified by "file:xxx.jar"
>>>>>>>>> Also the command  "install file:XXX.jar" won't work .The
erroe message is
>>>>>>>>> "[1]
>>>>>>>>>
>>>>>>>>> I did some search and found that the it's related to
the urlhandler
>>>>>>>> class.
>>>>>>>>> I think whenever referring to the "file:xxx.jar" , the
url fails to
>>>>>>>> locate
>>>>>>>>> the file .
>>>>>>>> What build of Harmony are you testing? Is it a Milestone
build? A
>>>>>>>> recent fix may address this issue, but it hasn't made into
a published
>>>>>>>> build yet.
>>>>>>>>
>>>>>>>>> I think it's ours , not the felix's problem , so I report
it here.
>>>>>>>>>
>>>>>>>>> You may try this by deleting the felix-cache directory
in the working
>>>>>>>>> directory and run
>>>>>>>>> java -jar bin\felix.jar
>>>>>>>>> with harmony's and sun's respectively .If you run sun's
first and not
>>>>>>>>> deleting the cache afterwards , no error .
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> [1]
>>>>>>>>> java.net.MalformedURLException: java.lang.IllegalStateException:
Stream
>>>>>>>>> handler
>>>>>>>>> unavailable due to: Stream handler unavailable due to:
null"
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> regards
>>>>>>>>> Tian
>>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> regards
>>>>>>> Tian
>>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Karl Pauls
>>>>> karlpauls@gmail.com
>>>>>
>>>
>>>
>>> --
>>> Karl Pauls
>>> karlpauls@gmail.com
>>>
>
>
>

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