我们更新了我们的Corda api代码并生成了一个新的包，只将CorDapp部署到包含公证人和网络地图的所有测试节点，我们只用每个节点的插件文件夹替换原始的kotlin-source.jar kotlin-source.jar的新版本，但在重新启动节点后，当我们尝试继续前一条记录时，＆＃34;合约约束失败＆＃34;发生错误，以下是在日志中找到的错误消息。由于所有节点都使用相同版本的kotlin-source.jar，我认为他们使用相同的CorDapp，任何人都可以提供关于合同约束失败的评论？感谢。
[WARN ] 2018-04-10T08:32:57,792Z [Node thread] flow.[d60cb4c4-f5b5-4b46-b8b2-9751165f5f34].run - Flow finished with exception
net.corda.core.contracts.TransactionVerificationException$ContractConstraintRejection: Contract constraints failed for com.legalcontract.contract.LegalContractCode, transaction: 4A6A9F6EA45CB10C92EA406F9D3E378D7BA334DC0EB48009E54A2FDA9CF86E59
at net.corda.core.transactions.LedgerTransaction.verifyConstraints(LedgerTransaction.kt:91) ~[corda-core-2.0.0.jar:?]
at net.corda.core.transactions.LedgerTransaction.verify(LedgerTransaction.kt:67) ~[corda-core-2.0.0.jar:?]
at net.corda.core.transactions.TransactionBuilder.verify(TransactionBuilder.kt:113) ~[corda-core-2.0.0.jar:?]
at com.legalcontract.flow.LegalContractFlow$Initiator.call(LegalContractFlow.kt:261) ~[kotlin-source.jar:?]
at com.legalcontract.flow.LegalContractFlow$Initiator.call(LegalContractFlow.kt:47) ~[kotlin-source.jar:?]
at net.corda.node.services.statemachine.FlowStateMachineImpl.run(FlowStateMachineImpl.kt:96) [corda-node-2.0.0.jar:?]
at net.corda.node.services.statemachine.FlowStateMachineImpl.run(FlowStateMachineImpl.kt:41) [corda-node-2.0.0.jar:?]
at co.paralleluniverse.fibers.Fiber.run1(Fiber.java:1092) [quasar-core-0.7.9-jdk8.jar:0.7.9]
at co.paralleluniverse.fibers.Fiber.exec(Fiber.java:788) [quasar-core-0.7.9-jdk8.jar:0.7.9]
at co.paralleluniverse.fibers.RunnableFiberTask.doExec(RunnableFiberTask.java:100) [quasar-core-0.7.9-jdk8.jar:0.7.9]
at co.paralleluniverse.fibers.RunnableFiberTask.run(RunnableFiberTask.java:91) [quasar-core-0.7.9-jdk8.jar:0.7.9]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_162]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_162]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source) [?:1.8.0_162]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source) [?:1.8.0_162]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_162]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_162]
at net.corda.node.utilities.AffinityExecutor$ServiceAffinityExecutor$1$thread$1.run(AffinityExecutor.kt:69) [corda-node-2.0.0.jar:?]
答案 0 :(得分：0)
在Corda 3中，除非您另行指明，否则交易使用HashAttachmentConstraint指定哪些合约管辖它。
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>hu.javacity.app.buildingsofcities</groupId>
<artifactId>city</artifactId>
<name>WildFly Swarm Example</name>
<version>1.0.0-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<version.wildfly.swarm>2018.4.1</version.wildfly.swarm>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<failOnMissingWebXml>false</failOnMissingWebXml>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.wildfly.swarm</groupId>
<artifactId>bom-all</artifactId>
<version>${version.wildfly.swarm}</version>
<scope>import</scope>
<type>pom</type>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<finalName>demo</finalName>
<plugins>
<plugin>
<groupId>org.wildfly.swarm</groupId>
<artifactId>wildfly-swarm-plugin</artifactId>
<version>${version.wildfly.swarm}</version>
<executions>
<execution>
<goals>
<goal>package</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<!-- Java EE 7 dependency -->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>
<!-- WildFly Swarm Fractions -->
</dependencies>
</project>
指定包含合同的JAR文件的哈希必须是什么。这意味着如果您更改合同 - 或该JAR 中的任何文件 - JAR哈希将发生变化，合同将不再被识别。