Describe the bug When using an interface which inherits from other interfaces which have @Composable default methods, the application immediately crashes at runtime with the following exception: ...

hazelcast fails to start with java.lang.ClassCastException: class java.lang.Boolean cannot be cast to class java.lang.String #26310 Closed kgignatyev opened on Apr 11, 2024 ...

Compare inheritance and composition, the two fundamental ways to relate Java classes, then practice debugging ClassCastExceptions in Java inheritance.