java.lang.RuntimeException: The root object can neither be an abstract class nor interface: "[J


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The root object can neither be an abstract class nor interface: "[J

Stack trace

java.lang.RuntimeException: The root object can        neither be an abstract class nor interface: "[J
	at io.protostuff.runtime.RuntimeSchema.createFrom(RuntimeSchema.java:210)
	at io.protostuff.runtime.RuntimeSchema.createFrom(RuntimeSchema.java:187)
	at io.protostuff.runtime.IdStrategy.newSchema(IdStrategy.java:116)
	at io.protostuff.runtime.DefaultIdStrategy$Lazy.getSchema(DefaultIdStrategy.java:708)
	at io.protostuff.runtime.RuntimeSchema.getSchema(RuntimeSchema.java:149)
	at io.protostuff.runtime.RuntimeSchema.getSchema(RuntimeSchema.java:140)
	at kryo.demo.UserCompareKryoAndProtostuff.testProtostuff(UserCompareKryoAndProtostuff.java:66)
	at kryo.demo.UserCompareKryoAndProtostuff.main(UserCompareKryoAndProtostuff.java:31)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)

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