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via Stack Overflow by s1m0nw1
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Unable to invoke no-args constructor for ? extends java.io.Serializable. Registering an InstanceCreator with Gson for this type may fix this problem.
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Unable to invoke no-args constructor for interface java.security.PublicKey. Register an InstanceCreator with Gson for this type may fix this problem.
java.lang.RuntimeException: Unable to invoke no-args constructor for ? extends java.io.Serializable. Registering an InstanceCreator with Gson for this type may fix this problem. at com.google.gson.internal.ConstructorConstructor$14.construct(ConstructorConstructor.java:226) at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:210) at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:41) at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:82) at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:61) at com.google.gson.Gson.fromJson(Gson.java:888) at com.google.gson.Gson.fromJson(Gson.java:853) at com.google.gson.Gson.fromJson(Gson.java:802) at SoTestsKt.main(SoTests.kt:25)Caused by: java.lang.UnsupportedOperationException: Interface can't be instantiated! Interface name: java.io.Serializable at com.google.gson.internal.UnsafeAllocator.assertInstantiable(UnsafeAllocator.java:117) at com.google.gson.internal.UnsafeAllocator$1.newInstance(UnsafeAllocator.java:49) at com.google.gson.internal.ConstructorConstructor$14.construct(ConstructorConstructor.java:223) ... 8 more