Java 在Spring Boot中使用Corda RPC API会引发IllegalArgumentException

我有一个类似的多模块项目

我使用的是没有Kotlin的Corda 3.2，Spring Boot 2，由于cordformation，我有一组Corda节点在运行。我能够从Spring Boot应用程序成功连接到节点，但在尝试获取节点信息时遇到了麻烦

我看到了一个类似的问题。但“清除缓存”的答案让我感到困惑。这是否意味着要清除gradle的缓存？那会有什么帮助

这是我的堆栈跟踪：

com.esotericsoftware.kryo.KryoException: java.lang.IllegalArgumentException: Privacy salt should be 32 bytes.
Serialization trace:
legalIdentitiesAndCerts (net.corda.core.node.NodeInfo)
value (net.corda.core.utilities.Try$Success)
    at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:144) ~[kryo-4.0.0.jar:na]
    at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.read(CompatibleFieldSerializer.java:147) ~[kryo-4.0.0.jar:na]
    at com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:731) ~[kryo-4.0.0.jar:na]
    at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125) ~[kryo-4.0.0.jar:na]
    at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.read(CompatibleFieldSerializer.java:147) ~[kryo-4.0.0.jar:na]
    at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:813) ~[kryo-4.0.0.jar:na]
    at net.corda.nodeapi.internal.serialization.kryo.AbstractKryoSerializationScheme$deserialize$$inlined$use$lambda$1$1.invoke(KryoSerializationScheme.kt:97) ~[corda-node-api-3.2-corda.jar:na]
    at net.corda.nodeapi.internal.serialization.kryo.AbstractKryoSerializationScheme$deserialize$$inlined$use$lambda$1$1.invoke(KryoSerializationScheme.kt:37) ~[corda-node-api-3.2-corda.jar:na]
    at net.corda.nodeapi.internal.serialization.kryo.AbstractKryoSerializationScheme.withContext(KryoSerializationScheme.kt:80) ~[corda-node-api-3.2-corda.jar:na]
    at net.corda.nodeapi.internal.serialization.kryo.AbstractKryoSerializationScheme.access$withContext(KryoSerializationScheme.kt:37) ~[corda-node-api-3.2-corda.jar:na]
    at net.corda.nodeapi.internal.serialization.kryo.AbstractKryoSerializationScheme$deserialize$$inlined$use$lambda$1.execute(KryoSerializationScheme.kt:95) ~[corda-node-api-3.2-corda.jar:na]
    at com.esotericsoftware.kryo.pool.KryoPoolQueueImpl.run(KryoPoolQueueImpl.java:61) ~[kryo-4.0.0.jar:na]
    at net.corda.nodeapi.internal.serialization.kryo.AbstractKryoSerializationScheme.deserialize(KryoSerializationScheme.kt:94) ~[corda-node-api-3.2-corda.jar:na]
    at net.corda.nodeapi.internal.serialization.SerializationFactoryImpl$deserialize$1$1.invoke(SerializationScheme.kt:111) ~[corda-node-api-3.2-corda.jar:na]
    at net.corda.core.serialization.SerializationFactory.withCurrentContext(SerializationAPI.kt:66) ~[corda-core-3.2-corda.jar:na]
    at net.corda.nodeapi.internal.serialization.SerializationFactoryImpl$deserialize$1.invoke(SerializationScheme.kt:111) ~[corda-node-api-3.2-corda.jar:na]
    at net.corda.nodeapi.internal.serialization.SerializationFactoryImpl$deserialize$1.invoke(SerializationScheme.kt:86) ~[corda-node-api-3.2-corda.jar:na]
    at net.corda.core.serialization.SerializationFactory.asCurrent(SerializationAPI.kt:80) ~[corda-core-3.2-corda.jar:na]
    at net.corda.nodeapi.internal.serialization.SerializationFactoryImpl.deserialize(SerializationScheme.kt:111) ~[corda-node-api-3.2-corda.jar:na]
    at net.corda.nodeapi.RPCApi$ServerToClient$Companion.fromClientMessage(RPCApi.kt:360) ~[corda-node-api-3.2-corda.jar:na]
    at net.corda.client.rpc.internal.RPCClientProxyHandler.artemisMessageHandler(RPCClientProxyHandler.kt:256) ~[corda-rpc-3.2-corda.jar:na]
    at net.corda.client.rpc.internal.RPCClientProxyHandler.access$artemisMessageHandler(RPCClientProxyHandler.kt:69) ~[corda-rpc-3.2-corda.jar:na]
    at net.corda.client.rpc.internal.RPCClientProxyHandler$start$2.invoke(RPCClientProxyHandler.kt:197) ~[corda-rpc-3.2-corda.jar:na]
    at net.corda.client.rpc.internal.RPCClientProxyHandler$start$2.invoke(RPCClientProxyHandler.kt:69) ~[corda-rpc-3.2-corda.jar:na]
    at net.corda.client.rpc.internal.RPCClientProxyHandlerKt$sam$MessageHandler$6fb61eb3.onMessage(RPCClientProxyHandler.kt) ~[corda-rpc-3.2-corda.jar:na]
    at org.apache.activemq.artemis.core.client.impl.ClientConsumerImpl.callOnMessage(ClientConsumerImpl.java:1003) ~[artemis-core-client-2.4.0.jar:2.4.0]
    at org.apache.activemq.artemis.core.client.impl.ClientConsumerImpl.access$400(ClientConsumerImpl.java:50) ~[artemis-core-client-2.4.0.jar:2.4.0]
    at org.apache.activemq.artemis.core.client.impl.ClientConsumerImpl$Runner.run(ClientConsumerImpl.java:1126) ~[artemis-core-client-2.4.0.jar:2.4.0]
    at org.apache.activemq.artemis.utils.actors.OrderedExecutor.doTask(OrderedExecutor.java:42) [artemis-commons-2.4.0.jar:2.4.0]
    at org.apache.activemq.artemis.utils.actors.OrderedExecutor.doTask(OrderedExecutor.java:31) [artemis-commons-2.4.0.jar:2.4.0]
    at org.apache.activemq.artemis.utils.actors.ProcessorBase$ExecutorTask.run(ProcessorBase.java:53) [artemis-commons-2.4.0.jar:2.4.0]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_181]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_181]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181]
Caused by: java.lang.IllegalArgumentException: Privacy salt should be 32 bytes.
    at net.corda.core.contracts.PrivacySalt.(Structures.kt:303) ~[corda-core-3.2-corda.jar:na]
    at net.corda.nodeapi.internal.serialization.kryo.DefaultKryoCustomizer$PrivacySaltSerializer.read(DefaultKryoCustomizer.kt:197) ~[corda-node-api-3.2-corda.jar:na]
    at net.corda.nodeapi.internal.serialization.kryo.DefaultKryoCustomizer$PrivacySaltSerializer.read(DefaultKryoCustomizer.kt:191) ~[corda-node-api-3.2-corda.jar:na]
    at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:813) ~[kryo-4.0.0.jar:na]
    at com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:134) ~[kryo-4.0.0.jar:na]
    at com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:40) ~[kryo-4.0.0.jar:na]
    at com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:731) ~[kryo-4.0.0.jar:na]
    at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125) ~[kryo-4.0.0.jar:na]
    ... 33 common frames omitted

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需要32字节长的隐私盐对我来说是56字节。

产生错误的原因不是太新的Gradle版本。 这是因为我的Spring Boot应用程序对26.0版有Guava依赖性，而Corda 3.2对21.0版有依赖性

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与此相关的Stackoverflow问题是

此错误是由于Guava依赖版本引起的。我有版本27，面临这个问题，我把版本改为21，它可以工作

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使用corda 3.3

我认为另一个问题的答案可能是重复的，它至少应该解释发生了什么以及如何解决这个问题。你能对这个答案发表评论以获得更多信息吗？好主意，谢谢。编辑：不幸的是，我的代表太少，无法在那里添加评论：（你能帮我一下吗？