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]] -- This message was sent by Atlassian Jira (v8.3.4#803005)