Corda io.bluebank.braid与Corda企业有一个问题

Question

我使用Braid作为我的cordapp的for服务器。当我从cordapp转到企业时，当我运行cordapp时，我开始收到以下错误：

[ERROR] 2019-10-21T18:13:24,310Z [main] internal.Node.installCordaServices - Corda service sg.tradecloud.webserver.BraidService failed to instantiate. Reason was: com.fasterxml.jackson.module.kotlin.KotlinModule.<init>(IILkotlin/jvm/internal/DefaultConstructorMarker;)V [errorCode=19x6zj9, moreInformationAt=https://errors.corda.net/ENT/4.2/19x6zj9] {}
java.lang.NoSuchMethodError: com.fasterxml.jackson.module.kotlin.KotlinModule.<init>(IILkotlin/jvm/internal/DefaultConstructorMarker;)V
    at io.bluebank.braid.core.json.BraidJacksonInit.<clinit>(Serialisation.kt:31) ~[?:?]
    at io.bluebank.braid.corda.serialisation.BraidCordaJacksonInit.<clinit>(Register.kt:36) ~[?:?]
    at io.bluebank.braid.corda.BraidServer.<clinit>(BraidServer.kt:34) ~[?:?]
    at io.bluebank.braid.corda.BraidConfig.bootstrapBraid(BraidConfig.kt:140) ~[?:?]
    at io.bluebank.braid.corda.BraidConfig.bootstrapBraid$default(BraidConfig.kt:139) ~[?:?]
    at sg.tradecloud.webserver.BraidService.configureBraid(BraidService.kt:73) ~[?:?]
    at sg.tradecloud.webserver.BraidService.<init>(BraidService.kt:38) ~[?:?]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_202]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_202]
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_202]
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_202]
    at net.corda.node.internal.AbstractNode.installCordaService(AbstractNode.kt:716) ~[corda-node-4.2.jar:?]
    at net.corda.node.internal.AbstractNode.installCordaServices(AbstractNode.kt:643) ~[corda-node-4.2.jar:?]
    at net.corda.node.internal.AbstractNode.access$installCordaServices(AbstractNode.kt:131) ~[corda-node-4.2.jar:?]
    at net.corda.node.internal.AbstractNode$start$8.invoke(AbstractNode.kt:416) ~[corda-node-4.2.jar:?]
    at net.corda.node.internal.AbstractNode$start$8.invoke(AbstractNode.kt:131) ~[corda-node-4.2.jar:?]
    at net.corda.nodeapi.internal.persistence.CordaPersistence.inTopLevelTransaction(CordaPersistence.kt:259) ~[corda-node-api-4.2.jar:?]
    at net.corda.nodeapi.internal.persistence.CordaPersistence.transaction(CordaPersistence.kt:235) ~[corda-node-api-4.2.jar:?]
    at net.corda.nodeapi.internal.persistence.CordaPersistence.transaction(CordaPersistence.kt:245) ~[corda-node-api-4.2.jar:?]
    at net.corda.node.internal.AbstractNode.start(AbstractNode.kt:405) ~[corda-node-4.2.jar:?]
    at net.corda.node.internal.Node.start(Node.kt:506) ~[corda-node-4.2.jar:?]
    at net.corda.node.internal.EnterpriseNode.start(EnterpriseNode.kt:207) ~[corda-node-4.2.jar:?]
    at net.corda.node.internal.NodeStartup.startNode(NodeStartup.kt:190) ~[corda-node-4.2.jar:?]
    at net.corda.node.internal.NodeStartupCli$runProgram$2.run(NodeStartup.kt:113) ~[corda-node-4.2.jar:?]
    at net.corda.node.internal.NodeStartup$initialiseAndRun$5.invoke(NodeStartup.kt:167) ~[corda-node-4.2.jar:?]
    at net.corda.node.internal.NodeStartup$initialiseAndRun$5.invoke(NodeStartup.kt:120) ~[corda-node-4.2.jar:?]
    at net.corda.node.internal.NodeStartupLogging$DefaultImpls.attempt(NodeStartup.kt:498) ~[corda-node-4.2.jar:?]
    at net.corda.node.internal.NodeStartup.attempt(NodeStartup.kt:120) ~[corda-node-4.2.jar:?]
    at net.corda.node.internal.NodeStartup.initialiseAndRun(NodeStartup.kt:166) ~[corda-node-4.2.jar:?]
    at net.corda.node.internal.NodeStartupCli.runProgram(NodeStartup.kt:111) ~[corda-node-4.2.jar:?]
    at net.corda.cliutils.CordaCliWrapper.call(CordaCliWrapper.kt:190) ~[corda-tools-cliutils-4.2.jar:?]
    at net.corda.cliutils.CordaCliWrapper.call(CordaCliWrapper.kt:156) ~[corda-tools-cliutils-4.2.jar:?]
    at picocli.CommandLine.execute(CommandLine.java:1056) ~[picocli-3.8.0.jar:3.8.0]
    at picocli.CommandLine.access$900(CommandLine.java:142) ~[picocli-3.8.0.jar:3.8.0]
    at picocli.CommandLine$RunLast.handle(CommandLine.java:1246) ~[picocli-3.8.0.jar:3.8.0]
    at picocli.CommandLine$RunLast.handle(CommandLine.java:1214) ~[picocli-3.8.0.jar:3.8.0]
    at picocli.CommandLine$AbstractParseResultHandler.handleParseResult(CommandLine.java:1122) ~[picocli-3.8.0.jar:3.8.0]
    at picocli.CommandLine.parseWithHandlers(CommandLine.java:1405) ~[picocli-3.8.0.jar:3.8.0]
    at net.corda.cliutils.CordaCliWrapperKt.start(CordaCliWrapper.kt:73) ~[corda-tools-cliutils-4.2.jar:?]

我做了一些研究，这似乎是因为Corda使用了com.fasterxml.jackson.module:jackson-module-kotlin的2.9.7，它覆盖了Braid 2.9.5的默认版本，而Braid似乎不喜欢它。

如果您浏览jackson-module-kotlin的回购并查看类KotlinModule的构造函数，您可以看到以下更改，在2.9.5中，它声明为

class KotlinModule(val reflectionCacheSize: Int = 512) : SimpleModule(PackageVersion.VERSION)

在2.9.7中，它被更改为

class KotlinModule(val reflectionCacheSize: Int = 512, val nullToEmptyCollection: Boolean = false, val nullToEmptyMap: Boolean = false) : SimpleModule(PackageVersion.VERSION)

这导致反射api无法找到它。

我能做些什么来解决这个问题？

Answer 1

这个问题是修正的编织4.1.1-补丁-01以上版本，我想。谢谢科迪特团队

Answer 2

嗯，这很有趣--我想知道这是否会给不用辫子的吊索带来麻烦！

也许我们需要一个编织的企业分支机构。