Hi Matthias, It’s * Java 11.0.9 (Amazon Corretto) * Intellij 2020.3.2 * git clone https://github.com/apache/plc4x.git <https://github.com/apache/plc4x.git>
The attached stack trace was from my project - Kotlin - maybe “app” comes from there. But you can just use the subscription example from the plc4x.git, it throws the same error. Regards, Andreas > On 03.03.2021, at 21:04, Matthias Milan Strljic <[email protected]> > wrote: > > Hi Andreas, > > can you give us a bit more information about your scenario and setup? > Project config, java version, java jvm, IDE environment, PLC4X version / > Github branch? > Because the " are in unnamed module of loader 'app'" confuses me a bit. > > Greetings Matthias > > ------------------------------ >> *Von:* Christofer Dutz <[email protected]> >> *Gesendet:* Mittwoch, 3. März 2021 20:40 >> *An:* [email protected] >> *Betreff:* AW: OPC UA Subscribe throws casting error ... >> >> Hi, >> >> perhaps Matthias can help you with this one? >> >> Chris >> >> >> -----Ursprüngliche Nachricht----- >> Von: Andreas Vogler <[email protected]> >> Gesendet: Mittwoch, 3. März 2021 20:22 >> An: [email protected] >> Betreff: Re: OPC UA Subscribe throws casting error ... >> >> Same happens with the plc4j hello-world-plc4x-subscription example from >> the GitHub repository. >> >>> On 03.03.2021, at 18:00, Andreas Vogler <[email protected]> >> wrote: >>> >>> Hi, >>> >>> I have tried to subscribe to an OPC UA node - just took the few lines >> from the subscription example - and I get following stack trace. >>> >>> I hope someone can tell me what I am doing wrong… :-) >>> >>> val builder: PlcSubscriptionRequest.Builder = >>> plc!!.subscriptionRequestBuilder() >>> topics.forEach { >>> builder.addChangeOfStateField(it.payload, it.payload) } val request >>> = builder.build() val response = request.execute() val >>> subscribeResponse = response.get() ==> the exception is thrown here >>> >>> [2021-03-03 17:52:26][INFO ][opc ] Subscribe >> nodes [1] >>> java.util.concurrent.ExecutionException: java.lang.ClassCastException: >> class org.apache.plc4x.java.spi.model.DefaultPlcSubscriptionField cannot be >> cast to class org.apache.plc4x.java.opcua.protocol.OpcuaField >> (org.apache.plc4x.java.spi.model.DefaultPlcSubscriptionField and >> org.apache.plc4x.java.opcua.protocol.OpcuaField are in unnamed module of >> loader 'app') >>> at >> java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:395) >>> at >> java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1999) >>> at Plc4xVerticle.subscribeNodes(Plc4xVerticle.kt:84) >>> at Plc4xVerticle.subscribeTopics(Plc4xVerticle.kt:66) >>> at >> at.rocworks.gateway.core.driver.DriverBase.subscribeTopic(DriverBase.kt:170) >>> at >> at.rocworks.gateway.core.driver.DriverBase.subscribeHandler(DriverBase.kt:127) >>> at >> at.rocworks.gateway.core.driver.DriverBase.access$subscribeHandler(DriverBase.kt:24) >>> at >> at.rocworks.gateway.core.driver.DriverBase$connectHandlers$2.handle(DriverBase.kt:105) >>> at >> at.rocworks.gateway.core.driver.DriverBase$connectHandlers$2.handle(DriverBase.kt:24) >>> at >> io.vertx.core.impl.EventLoopContext.emit(EventLoopContext.java:52) >>> at >> io.vertx.core.impl.DuplicatedContext.emit(DuplicatedContext.java:194) >>> at >> io.vertx.core.eventbus.impl.MessageConsumerImpl.dispatch(MessageConsumerImpl.java:177) >>> at >> io.vertx.core.eventbus.impl.HandlerRegistration$InboundDeliveryContext.next(HandlerRegistration.java:163) >>> at >> io.vertx.core.eventbus.impl.HandlerRegistration$InboundDeliveryContext.dispatch(HandlerRegistration.java:128) >>> at >> io.vertx.core.impl.AbstractContext.dispatch(AbstractContext.java:107) >>> at >> io.vertx.core.eventbus.impl.HandlerRegistration.dispatch(HandlerRegistration.java:104) >>> at >> io.vertx.core.eventbus.impl.MessageConsumerImpl.deliver(MessageConsumerImpl.java:183) >>> at >> io.vertx.core.eventbus.impl.MessageConsumerImpl.doReceive(MessageConsumerImpl.java:168) >>> at >> io.vertx.core.eventbus.impl.HandlerRegistration.lambda$receive$0(HandlerRegistration.java:54) >>> at >> io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164) >>> at >> io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472) >>> at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500) >>> at >> io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) >>> at >> io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) >>> at >> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) >>> at java.base/java.lang.Thread.run(Thread.java:829) >>> Caused by: java.lang.ClassCastException: class >> org.apache.plc4x.java.spi.model.DefaultPlcSubscriptionField cannot be cast >> to class org.apache.plc4x.java.opcua.protocol.OpcuaField >> (org.apache.plc4x.java.spi.model.DefaultPlcSubscriptionField and >> org.apache.plc4x.java.opcua.protocol.OpcuaField are in unnamed module of >> loader 'app') >>> at >> org.apache.plc4x.java.opcua.connection.OpcuaTcpPlcConnection.lambda$subscribe$3(OpcuaTcpPlcConnection.java:388) >>> at >> java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1700) >>> at >> java.base/java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1692) >>> at >> java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290) >>> at >> java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020) >>> at >> java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656) >>> at >> java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594) >>> at >>> java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorker >>> Thread.java:183) >>> java.util.concurrent.ExecutionException: java.lang.ClassCastException: >> class org.apache.plc4x.java.spi.model.DefaultPlcSubscriptionField cannot be >> cast to class org.apache.plc4x.java.opcua.protocol.OpcuaField >> (org.apache.plc4x.java.spi.model.DefaultPlcSubscriptionField and >> org.apache.plc4x.java.opcua.protocol.OpcuaField are in unnamed module of >> loader 'app') >>> at >> java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:395) >>> at >> java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1999) >>> at Plc4xVerticle.subscribeNodes(Plc4xVerticle.kt:84) >>> at Plc4xVerticle.subscribeTopics(Plc4xVerticle.kt:66) >>> at >> at.rocworks.gateway.core.driver.DriverBase.subscribeTopic(DriverBase.kt:170) >>> at >> at.rocworks.gateway.core.driver.DriverBase.subscribeHandler(DriverBase.kt:127) >>> at >> at.rocworks.gateway.core.driver.DriverBase.access$subscribeHandler(DriverBase.kt:24) >>> at >> at.rocworks.gateway.core.driver.DriverBase$connectHandlers$2.handle(DriverBase.kt:105) >>> at >> at.rocworks.gateway.core.driver.DriverBase$connectHandlers$2.handle(DriverBase.kt:24) >>> at >> io.vertx.core.impl.EventLoopContext.emit(EventLoopContext.java:52) >>> at >> io.vertx.core.impl.DuplicatedContext.emit(DuplicatedContext.java:194) >>> at >> io.vertx.core.eventbus.impl.MessageConsumerImpl.dispatch(MessageConsumerImpl.java:177) >>> at >> io.vertx.core.eventbus.impl.HandlerRegistration$InboundDeliveryContext.next(HandlerRegistration.java:163) >>> at >> io.vertx.core.eventbus.impl.HandlerRegistration$InboundDeliveryContext.dispatch(HandlerRegistration.java:128) >>> at >> io.vertx.core.impl.AbstractContext.dispatch(AbstractContext.java:107) >>> at >> io.vertx.core.eventbus.impl.HandlerRegistration.dispatch(HandlerRegistration.java:104) >>> at >> io.vertx.core.eventbus.impl.MessageConsumerImpl.deliver(MessageConsumerImpl.java:183) >>> at >> io.vertx.core.eventbus.impl.MessageConsumerImpl.doReceive(MessageConsumerImpl.java:168) >>> at >> io.vertx.core.eventbus.impl.HandlerRegistration.lambda$receive$0(HandlerRegistration.java:54) >>> at >> io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164) >>> at >> io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472) >>> at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500) >>> at >> io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) >>> at >> io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) >>> at >> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) >>> at java.base/java.lang.Thread.run(Thread.java:829) >>> Caused by: java.lang.ClassCastException: class >> org.apache.plc4x.java.spi.model.DefaultPlcSubscriptionField cannot be cast >> to class org.apache.plc4x.java.opcua.protocol.OpcuaField >> (org.apache.plc4x.java.spi.model.DefaultPlcSubscriptionField and >> org.apache.plc4x.java.opcua.protocol.OpcuaField are in unnamed module of >> loader 'app') >>> at >> org.apache.plc4x.java.opcua.connection.OpcuaTcpPlcConnection.lambda$subscribe$3(OpcuaTcpPlcConnection.java:388) >>> at >> java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1700) >>> at >> java.base/java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1692) >>> at >> java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290) >>> at >> java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020) >>> at >> java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656) >>> at >> java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594) >>> at >>> java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorker >>> Thread.java:183) >>> >>> >>> >> >>
