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From "HAOFENG DENG (Jira)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-12623) ClassCastException on Thin client when get cache value with List and Map
Date Wed, 05 Feb 2020 08:14:00 GMT
HAOFENG DENG created IGNITE-12623:
-------------------------------------

             Summary: ClassCastException on Thin client when get cache value with List and
Map
                 Key: IGNITE-12623
                 URL: https://issues.apache.org/jira/browse/IGNITE-12623
             Project: Ignite
          Issue Type: Bug
          Components: cache, clients
    Affects Versions: 2.7.6
         Environment: Ubuntu

Java 11

Ignite 2.7.6
            Reporter: HAOFENG DENG


I use the thin java client

I Create a ArrayList and put the Person object into it.
{code:java}
try (IgniteClient igniteClient = Ignition.startClient(new ClientConfiguration().setAddresses("127.0.0.1:10800")))
{
    final ClientCache<String, List<Person>> demo = igniteClient.getOrCreateCache("demo");
    final List<Person> personList = new java.util.ArrayList<>();
    personList.add(new Person("apache", 100));
    personList.add(new Person("Ignite", 13));
    demo.put("test", personList);
}
{code}
And when I take it out of the list
{code:java}
try (IgniteClient igniteClient = Ignition.startClient(new ClientConfiguration().setAddresses("127.0.0.1:10800")))
{
    final ClientCache<String, List<Person>> demo = igniteClient.getOrCreateCache("demo");
    final List<Person> personList = demo.get("test");
    final Person person = personList.get(0);
}{code}
 

I get the following exceptions:
{code:java}
java.lang.ClassCastException: class org.apache.ignite.internal.binary.BinaryObjectImpl cannot
be cast to class com.peeandgee.Person (org.apache.ignite.internal.binary.BinaryObjectImpl
and com.peeandgee.Person are in unnamed module of loader 'app')
{code}
 

However, there is no exception if I modify the code as follows:
{code:java}
BinaryObject bo = (BinaryObject) map.get(0);

Person person = bo.deserialize();
{code}
 

 

Same issue in Map [ClassCastException on thinClient in Apache Ignite|[https://stackoverflow.com/questions/59299316/classcastexception-on-thinclient-in-apache-ignite]]

 

 



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