[IGNITE-12623] ClassCastException on Thin client when get cache value with List and Map

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Duplicate
• Affects Version/s: 2.7.5, 2.7.6
• Component/s: cache, clients

Environment

Ubuntu

Java 11

Ignite 2.7.6

• Release Note: Deplicate with IGNITE-12468.
• Ignite Flags: Docs Required, Release Notes Required
• Assignee: Unassigned
• Reporter: HAOFENG DENG
• Created: 05/Feb/20 08:13
• Updated: 06/Feb/20 07:18
• Resolved: 06/Feb/20 07:18

Description

I use the thin java client

I Create a ArrayList and put the Person object into it.

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);
}

And when I take it out of the list

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);
}

 

I get the following exceptions:

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')

 

However, there is no exception if I modify the code as follows:

BinaryObject bo = (BinaryObject) map.get(0);

Person person = bo.deserialize();

 

 

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

 

 

Issue Links

• duplicates: IGNITE-12468 ClassCastException on thinClient in Apache Ignite