[PLC4X-319] Class casts in new opcua driver

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.9.0
• Component/s: Driver-OPC-UA

Language

java

• Assignee: Łukasz Dywicki
• Reporter: Łukasz Dywicki
• Created: 21/Oct/21 21:11
• Updated: 09/Nov/22 10:21

Description

Issue reported on mailing lists:

[nioEventLoopGroup-2-1] WARN io.netty.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.ClassCastException: class org.apache.plc4x.java.opcua.readwrite.ServiceFault cannot be cast to class org.apache.plc4x.java.opcua.readwrite.ReadResponse (org.apache.plc4x.java.opcua.readwrite.ServiceFault and org.apache.plc4x.java.opcua.readwrite.ReadResponse are in unnamed module of loader 'app')
        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:379)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296)
        at io.netty.handler.codec.ByteToMessageCodec.channelRead(ByteToMessageCodec.java:103)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
        at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719)
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655)
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581)
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986)
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
        at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.ClassCastException: class org.apache.plc4x.java.opcua.readwrite.ServiceFault cannot be cast to class org.apache.plc4x.java.opcua.readwrite.ReadResponse (org.apache.plc4x.java.opcua.readwrite.ServiceFault and org.apache.plc4x.java.opcua.readwrite.ReadResponse are in unnamed module of loader 'app')
        at org.apache.plc4x.java.opcua.protocol.OpcuaProtocolLogic.lambda$read$0(OpcuaProtocolLogic.java:177)
        at org.apache.plc4x.java.opcua.context.SecureChannel.lambda$4(SecureChannel.java:212)
        at org.apache.plc4x.java.spi.Plc4xNettyWrapper.decode(Plc4xNettyWrapper.java:175)
        at io.netty.handler.codec.MessageToMessageCodec$2.decode(MessageToMessageCodec.java:81)
        at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:88)
        ... 23 more

Issue Links

• links to: Pull request for write failures