Corda单元测试因缺少@Suspendable而失败

在Corda Enterprise 4.1上运行单元测试时，以前的工作流程单元测试崩溃，出现以下异常：

java.lang.IllegalArgumentException: Transaction context is missing. This might happen if a suspendable method is not annotated with @Suspendable annotation.
    at net.corda.node.services.statemachine.FlowStateMachineImpl.checkDbTransaction(FlowStateMachineImpl.kt:233) ~[corda-node-4.1.20190823.jar:?]
    at net.corda.node.services.statemachine.FlowStateMachineImpl.processEventImmediately(FlowStateMachineImpl.kt:224) ~[corda-node-4.1.20190823.jar:?]
    at net.corda.node.services.statemachine.FlowStateMachineImpl.run(FlowStateMachineImpl.kt:294) ~[corda-node-4.1.20190823.jar:?]
    at net.corda.node.services.statemachine.FlowStateMachineImpl.run(FlowStateMachineImpl.kt:45) ~[corda-node-4.1.20190823.jar:?]
    at co.paralleluniverse.fibers.Fiber.run1(Fiber.java:1092) ~[quasar-core-0.7.10-jdk8.jar:0.7.10]
    at co.paralleluniverse.fibers.Fiber.exec(Fiber.java:788) ~[quasar-core-0.7.10-jdk8.jar:0.7.10]
    at co.paralleluniverse.fibers.RunnableFiberTask.doExec(RunnableFiberTask.java:100) ~[quasar-core-0.7.10-jdk8.jar:0.7.10]
    at co.paralleluniverse.fibers.RunnableFiberTask.run(RunnableFiberTask.java:91) ~[quasar-core-0.7.10-jdk8.jar:0.7.10]
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_212]
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_212]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) ~[?:1.8.0_212]
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) ~[?:1.8.0_212]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_212]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_212]
    at net.corda.node.utilities.AffinityExecutor$ServiceAffinityExecutor$1$thread$1.run(AffinityExecutor.kt:63) ~[corda-node-4.1.20190823.jar:?]

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所有方法都正确地包含

@Suspendable

注释。是什么导致流量测试失败？

请确保Cordapp中包含正确版本的Quasar。Corda 4的版本已更改，请查看所需Quasar版本的文档：

特别是对于Corda 4.1，这将是

ext.quasar\u version='0.7.11\u r3'