运行流时，“上下文中无事务"错误 [英] `No transaction in context` error when running a flow

问题描述

运行Corda流时，出现以下错误:

When running a Corda flow, I receive the following error:

java.lang.IllegalStateException: No transaction in context

我该如何解决这个问题?

How can I solve this issue?

推荐答案

此问题可能是由于未能使用 @Suspendable 批注对从流中调用的函数进行批注引起的.这可以是 FlowLogic.call ，也可以是从 FlowLogic.call 内部调用的函数(例如，如果要重写此函数为 SignTransactionFlow.checkTransaction 调用 CollectSignaturesFlow )的一部分.

This issue is likely caused by a failure to annotate a function called from within a flow with the @Suspendable annotation. This could either be FlowLogic.call, or a function called from within FlowLogic.call (e.g. SignTransactionFlow.checkTransaction if you are overriding this function as part of a call to CollectSignaturesFlow).

如果使用以下命令行标志运行流测试:

If you run flow tests with the following command line flag:

-Dco.paralleluniverse.fibers.verifyInstrumentation=true

然后，如果缺失的注释会导致错误，则会将其突出显示.但是，这会减慢测试的运行速度.

Then the missing annotation will be highlighted if it causes an error. However, this will slow down the running of the tests.

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