Hello, Nathan!
  Thank you very much for your support. After instantiating my
unserializable class in the open method of the spout , everything went well.

Best regards,
  Florin


On Thu, Aug 7, 2014 at 5:45 PM, Nathan Leung <ncle...@gmail.com> wrote:

> Most things your spout or bolt uses, especially anything using a network
> connection, open file, etc, should be created in the prepare() method, and
> not on construction.
>
>
> On Thu, Aug 7, 2014 at 10:43 AM, Spico Florin <spicoflo...@gmail.com>
> wrote:
>
>> Hello!
>>    I have a bolt that is using a third party class that has a reference
>> to java.util.concurrent.CountDownLatch. Due to this fact. I'm getting the
>> following exception:
>> Exception in thread "main" java.lang.RuntimeException:
>> java.io.NotSerializableException: java.util.concurrent.CountDownLatch
>>  at backtype.storm.utils.Utils.serialize(Utils.java:81)
>> at
>> backtype.storm.topology.TopologyBuilder.createTopology(TopologyBuilder.java:111)
>>  at Caused by: java.io.NotSerializableException:
>> java.util.concurrent.CountDownLatch
>> at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1183)
>>  at
>> java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
>> at
>> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508)
>>  at
>> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
>> at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
>>  at
>> java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
>> at
>> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508)
>>
>> In this case, how can I avoid or how can I handle this situation when you
>> are using third party libraries that has these kind of unserializable
>> dependencies?
>>
>> I look forward for your suggestions, opinions
>> Best regards,
>>   Florin
>>
>>
>

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