korni128 opened a new issue, #55:
URL: https://github.com/apache/plc4x-extras/issues/55
### What happened?
When I try to run the following simple test with Plc4xServer, an
IllegalArgumentException is thrown and displayed in the log due to an empty
ConcurrentHashMap of runningRequests in the RequestTransactionManager.
Apart from the exception that is displayed in the log, the test runs
successfully.
It seems that the transaction was not previously added to the runningReuqets.
My test code:
`
Plc4xServer plc4xServer = new Plc4xServer();
plc4xServer.start();
String connectionStringTemplate =
"plc4x://localhost:%d?remote-connection-string=%s";
String connectionStringSimulatedTemplate = "simulated%3A%2F%2Flocalhost";
String connectionUrl = String.format(connectionStringTemplate,
Plc4xConstants.PLC4XTCPDEFAULTPORT, connectionStringSimulatedTemplate);
PlcConnectionManager connectionManager = new
DefaultPlcDriverManager().getConnectionManager();
final PlcWriteResponse response;
try (PlcConnection connection =
connectionManager.getConnection(connectionUrl)) {
final PlcWriteRequest request =
connection.writeRequestBuilder().addTagAddress("foo", "STATE/foo:DINT",
42).build();
response = request.execute().get();
}
assertThat(response.getResponseCode("foo")).isEqualTo(PlcResponseCode.OK);
`
The log output.
`
[nioEventLoopGroup-4-1] WARN i.n.channel.DefaultChannelPipeline - An
exceptionCaught() event was fired, and it reached at the tail of the pipeline.
It usually means the last handler in the pipeline did not handle the exception.
io.netty.handler.codec.DecoderException: java.lang.IllegalArgumentException:
Unknown Transaction or Transaction already finished!
at
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:98)
at
io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
at
io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346)
at
io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318)
at
io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
at
io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
at
io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
at
io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)
at
io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788)
at
io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724)
at
io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562)
at
io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
at
io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: java.lang.IllegalArgumentException: Unknown Transaction or
Transaction already finished!
at
org.apache.plc4x.java.spi.transaction.RequestTransactionManager.endRequest(RequestTransactionManager.java:146)
at
org.apache.plc4x.java.spi.transaction.RequestTransactionManager$RequestTransaction.endRequest(RequestTransactionManager.java:177)
at
org.apache.plc4x.java.plc4x.protocol.Plc4xProtocolLogic.lambda$13(Plc4xProtocolLogic.java:170)
at
java.base/java.util.function.Consumer.lambda$andThen$0(Consumer.java:65)
at
org.apache.plc4x.java.spi.Plc4xNettyWrapper.decode(Plc4xNettyWrapper.java:178)
at
io.netty.handler.codec.MessageToMessageCodec$2.decode(MessageToMessageCodec.java:81)
at
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:88)
... 23 common frames omitted
`
### Version
v0.12.0
### Programming Languages
- [X] plc4j
- [ ] plc4go
- [ ] plc4c
- [ ] plc4net
### Protocols
- [ ] AB-Ethernet
- [ ] ADS /AMS
- [ ] BACnet/IP
- [ ] CANopen
- [ ] DeltaV
- [ ] DF1
- [ ] EtherNet/IP
- [ ] Firmata
- [ ] KNXnet/IP
- [ ] Modbus
- [ ] OPC-UA
- [ ] S7
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