CODEWITHSUNDEEP
corda
Amit Pamecha
Amit Pamecha

Reputation: 119

Not able to start flow in corda - java.lang.IllegalStateException: This can only be done after the flow has been started

New to Corda & I am sure, I am missing something here.

From my API, I am trying to self issue commodities for this I am starting Issue flow using below line:

FlowProgressHandle<SignedTransaction> flowHandle = rpcOps
                    .startTrackedFlowDynamic(BlockIssueFlow.class, orderValue);

However, my code fails with below exception:

[m net.corda.client.rpc.RPCException:
        at net.corda.client.rpc.internal.RPCClientProxyHandler.invoke(RPCClientProxyHandler.kt:238) ~[corda-rpc-3.1-corda.jar:?]
        at com.sun.proxy.$Proxy29.startTrackedFlowDynamic(Unknown Source) ~[?:?]
        at com.template.ledger.api.GoldBlockAPI.issueGb(GoldBlockAPI.java:88) [cordapp-0.1.jar:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_151]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_151]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_151]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_151]
        at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81) [jersey-server-2.25.jar:?]
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144) [jersey-server-2.25.jar:?]
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161) [jersey-server-2.25.jar:?]
        at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:160) [jersey-server-2.25.jar:?]
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99) [jersey-server-2.25.jar:?]
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389) [jersey-server-2.25.jar:?]
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347) [jersey-server-2.25.jar:?]
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102) [jersey-server-2.25.jar:?]
        at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:326) [jersey-server-2.25.jar:?]
        at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271) [jersey-common-2.25.jar:?]
        at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267) [jersey-common-2.25.jar:?]
        at org.glassfish.jersey.internal.Errors.process(Errors.java:315) [jersey-common-2.25.jar:?]
        at org.glassfish.jersey.internal.Errors.process(Errors.java:297) [jersey-common-2.25.jar:?]
        at org.glassfish.jersey.internal.Errors.process(Errors.java:267) [jersey-common-2.25.jar:?]
        at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317) [jersey-common-2.25.jar:?]
        at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305) [jersey-server-2.25.jar:?]
        at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154) [jersey-server-2.25.jar:?]
        at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473) [jersey-container-servlet-core-2.25.jar:?]
        at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427) [jersey-container-servlet-core-2.25.jar:?]
        at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388) [jersey-container-servlet-core-2.25.jar:?]
        at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341) [jersey-container-servlet-core-2.25.jar:?]
        at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228) [jersey-container-servlet-core-2.25.jar:?]
        at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:841) [jetty-servlet-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:535) [jetty-servlet-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188) [jetty-server-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253) [jetty-server-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168) [jetty-server-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473) [jetty-servlet-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166) [jetty-server-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155) [jetty-server-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) [jetty-server-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126) [jetty-server-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) [jetty-server-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.server.Server.handle(Server.java:561) [jetty-server-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:334) [jetty-server-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251) [jetty-server-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279) [jetty-io-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:104) [jetty-io-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124) [jetty-io-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:247) [jetty-util-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140) [jetty-util-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131) [jetty-util-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:243) [jetty-util-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:679) [jetty-util-9.4.7.v20170914.jar:9.4.7.v20170914]
        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:597) [jetty-util-9.4.7.v20170914.jar:9.4.7.v20170914]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_151]
Caused by: java.lang.reflect.InvocationTargetException
Caused by: java.lang.IllegalStateException:

This can only be done after the flow has been started.

Thanks!

Upvotes: 2

Views: 635

Answers (1)

Joel
Joel

Reputation: 23210

The issue is that you try to access the flow's state machine in the constructor, in order to get access to the node's ServiceHub:

PartyAndReference partyAndReference = new PartyAndReference(
    getServiceHub().getMyInfo().getLegalIdentities().get(0), 
    ref
);

The flow state machine is initialised after the flow's constructor has been invoked, so the ServiceHub cannot be accessed in the constructor.

This PR provides an improved error message for cases like this: https://github.com/corda/corda/pull/3144.

Upvotes: 3

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