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Posted to issues@ignite.apache.org by "HAOFENG DENG (Jira)" <ji...@apache.org> on 2020/02/05 08:14:00 UTC
[jira] [Updated] (IGNITE-12623) ClassCastException on Thin client
when get cache value with List and Map
[ https://issues.apache.org/jira/browse/IGNITE-12623?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
HAOFENG DENG updated IGNITE-12623:
----------------------------------
Priority: Critical (was: Major)
> 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
> Priority: Critical
>
> 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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