UDP TC Sending

[Onur Gürdoğan]

Hi,

I am getting an error (you may find it below) while I am trying to send an empty TC via UDP which has the base container inheritance coming from TM segment. 

Code Sample:

<MetaCommand name="PUS_203_7_Command" shortDescription="PUS[203,7] command definition.">

 <CommandContainer name="PUS_203_7_Command_Container">

  <EntryList/>

  <BaseContainer containerRef="CCSDS_Base_PUS_Telemetry_Packet"/>

 </CommandContainer>

</MetaCommand>

As it can be seen it is just a very simple example to test my setup. Nevertheless, I am receiving an error given below.

Error Message:

class org.yamcs.xtce.AggregateParameterType cannot be cast to class org.yamcs.xtce.BaseDataType (org.yamcs.xtce.AggregateParameterType and org.yamcs.xtce.BaseDataType are in unnamed module of loader 'app') 

CCSDS_Base_PUS_Telemetry_Packet, packet is defined as aggregate parameter type where is located under the telemetry segment. Am I getting this error because of I am using the aggregate parameter type while I was structing the TM segment packets? Or it is just an another issue? 

Thanks in advance!

[Nicolae Mihalache]

can you send more of the stack trace?

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[Onur Gürdoğan]

Hi Nicolae,

Here you may find the full log:

---Starts

11:32:20.587 _global [25] RouteHandler 9: Responding '500 Internal Server Error': java.lang.ClassCastException: class org.yamcs.xtce.AggregateParameterType cannot be cast to class org.yamcs.xtce.BaseDataType (org.yamcs.xtce.AggregateParameterType and org.yamcs.xtce.BaseDataType are in unnamed module of loader 'app'): org.yamcs.http.InternalServerErrorException: java.lang.ClassCastException: class org.yamcs.xtce.AggregateParameterType cannot be cast to class org.yamcs.xtce.BaseDataType (org.yamcs.xtce.AggregateParameterType and org.yamcs.xtce.BaseDataType are in unnamed module of loader 'app')

        org.yamcs.http.RouteHandler.handleException(RouteHandler.java:118)

        org.yamcs.http.RouteHandler.dispatch(RouteHandler.java:87)

        org.yamcs.http.RouteHandler.handle(RouteHandler.java:51)

        org.yamcs.http.Handler.handle(Handler.java:23)

        org.yamcs.http.Handler.channelRead0(Handler.java:29)

        org.yamcs.http.Handler.channelRead0(Handler.java:9)

        io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)

        io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        org.yamcs.http.HttpRequestHandler.channelRead(HttpRequestHandler.java:158)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436)

        io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324)

        io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296)

        io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.handler.traffic.AbstractTrafficShapingHandler.channelRead(AbstractTrafficShapingHandler.java:513)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)

        io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)

        io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719)

        io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655)

        io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581)

        io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)

        io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)

        io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)

        io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)

        java.base/java.lang.Thread.run(Thread.java:829)

Caused by: java.lang.ClassCastException: class org.yamcs.xtce.AggregateParameterType cannot be cast to class org.yamcs.xtce.BaseDataType (org.yamcs.xtce.AggregateParameterType and org.yamcs.xtce.BaseDataType are in unnamed module of loader 'app')

        org.yamcs.xtceproc.MetaCommandContainerProcessor.fillInParameterEntry(MetaCommandContainerProcessor.java:147)

        org.yamcs.xtceproc.MetaCommandContainerProcessor.encode(MetaCommandContainerProcessor.java:88)

        org.yamcs.xtceproc.MetaCommandContainerProcessor.encode(MetaCommandContainerProcessor.java:69)

        org.yamcs.xtceproc.MetaCommandContainerProcessor.encode(MetaCommandContainerProcessor.java:69)

        org.yamcs.xtceproc.MetaCommandContainerProcessor.encode(MetaCommandContainerProcessor.java:35)

        org.yamcs.xtceproc.MetaCommandProcessor.buildCommand(MetaCommandProcessor.java:79)

        org.yamcs.xtceproc.MetaCommandProcessor.buildCommand(MetaCommandProcessor.java:35)

        org.yamcs.commanding.CommandingManager.buildCommand(CommandingManager.java:70)

        org.yamcs.http.api.CommandsApi.issueCommand(CommandsApi.java:115)

        org.yamcs.http.api.CommandsApi.issueCommand(CommandsApi.java:73)

        org.yamcs.protobuf.AbstractCommandsApi.callMethod(AbstractCommandsApi.java:130)

        org.yamcs.http.RouteHandler.dispatch(RouteHandler.java:84)

        org.yamcs.http.RouteHandler.handle(RouteHandler.java:51)

        org.yamcs.http.Handler.handle(Handler.java:23)

        org.yamcs.http.Handler.channelRead0(Handler.java:29)

        org.yamcs.http.Handler.channelRead0(Handler.java:9)

        io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)

        io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        org.yamcs.http.HttpRequestHandler.channelRead(HttpRequestHandler.java:158)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436)

        io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324)

        io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296)

        io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.handler.traffic.AbstractTrafficShapingHandler.channelRead(AbstractTrafficShapingHandler.java:513)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)

        io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)

        io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719)

        io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655)

        io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581)

        io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)

        io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)

        io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)

        io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)

        java.base/java.lang.Thread.run(Thread.java:829)

11:32:20.606 _global [25] CallObserver Internal server error while handling call: org.yamcs.http.InternalServerErrorException: java.lang.ClassCastException: class org.yamcs.xtce.AggregateParameterType cannot be cast to class org.yamcs.xtce.BaseDataType (org.yamcs.xtce.AggregateParameterType and org.yamcs.xtce.BaseDataType are in unnamed module of loader 'app')

        org.yamcs.http.RouteHandler.handleException(RouteHandler.java:118)

        org.yamcs.http.RouteHandler.dispatch(RouteHandler.java:87)

        org.yamcs.http.RouteHandler.handle(RouteHandler.java:51)

        org.yamcs.http.Handler.handle(Handler.java:23)

        org.yamcs.http.Handler.channelRead0(Handler.java:29)

        org.yamcs.http.Handler.channelRead0(Handler.java:9)

        io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)

        io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        org.yamcs.http.HttpRequestHandler.channelRead(HttpRequestHandler.java:158)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436)

        io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324)

        io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296)

        io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.handler.traffic.AbstractTrafficShapingHandler.channelRead(AbstractTrafficShapingHandler.java:513)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)

        io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)

        io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719)

        io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655)

        io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581)

        io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)

        io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)

        io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)

        io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)

        java.base/java.lang.Thread.run(Thread.java:829)

Caused by: java.lang.ClassCastException: class org.yamcs.xtce.AggregateParameterType cannot be cast to class org.yamcs.xtce.BaseDataType (org.yamcs.xtce.AggregateParameterType and org.yamcs.xtce.BaseDataType are in unnamed module of loader 'app')

        org.yamcs.xtceproc.MetaCommandContainerProcessor.fillInParameterEntry(MetaCommandContainerProcessor.java:147)

        org.yamcs.xtceproc.MetaCommandContainerProcessor.encode(MetaCommandContainerProcessor.java:88)

        org.yamcs.xtceproc.MetaCommandContainerProcessor.encode(MetaCommandContainerProcessor.java:69)

        org.yamcs.xtceproc.MetaCommandContainerProcessor.encode(MetaCommandContainerProcessor.java:69)

        org.yamcs.xtceproc.MetaCommandContainerProcessor.encode(MetaCommandContainerProcessor.java:35)

        org.yamcs.xtceproc.MetaCommandProcessor.buildCommand(MetaCommandProcessor.java:79)

        org.yamcs.xtceproc.MetaCommandProcessor.buildCommand(MetaCommandProcessor.java:35)

        org.yamcs.commanding.CommandingManager.buildCommand(CommandingManager.java:70)

        org.yamcs.http.api.CommandsApi.issueCommand(CommandsApi.java:115)

        org.yamcs.http.api.CommandsApi.issueCommand(CommandsApi.java:73)

        org.yamcs.protobuf.AbstractCommandsApi.callMethod(AbstractCommandsApi.java:130)

        org.yamcs.http.RouteHandler.dispatch(RouteHandler.java:84)

        org.yamcs.http.RouteHandler.handle(RouteHandler.java:51)

        org.yamcs.http.Handler.handle(Handler.java:23)

        org.yamcs.http.Handler.channelRead0(Handler.java:29)

        org.yamcs.http.Handler.channelRead0(Handler.java:9)

        io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)

        io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        org.yamcs.http.HttpRequestHandler.channelRead(HttpRequestHandler.java:158)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:436)

        io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324)

        io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296)

        io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:251)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.handler.traffic.AbstractTrafficShapingHandler.channelRead(AbstractTrafficShapingHandler.java:513)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)

        io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)

        io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)

        io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)

        io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)

        io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719)

        io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655)

        io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581)

        io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)

        io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)

        io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)

        io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)

        java.base/java.lang.Thread.run(Thread.java:829)

11:32:20.614 _global [25] HttpRequestHandler 6cb5273c POST /api/processors/ARSAT-SG1/realtime/commands/ARSATSG1/PUS_203_7_Command 500

---Ends

22 Haziran 2021 Salı tarihinde saat 11:31:58 UTC+3 itibarıyla Nicolae Mihalache şunları yazdı:

[Nicolae Mihalache]

Thanks for the stack trace, probably a bug.

I will look at it later today.

To view this discussion on the web visit https://groups.google.com/d/msgid/yamcs/38077a16-4a9c-4b44-b7d9-b85069c47c7fn%40googlegroups.com.

[Onur Gürdoğan]

Thank you for your fast response! I will be waiting, thanks again.

22 Haziran 2021 Salı tarihinde saat 13:30:53 UTC+3 itibarıyla Nicolae Mihalache şunları yazdı:

[Nicolae Mihalache]

I pushed a fix for that on github, can you give it a try?

In the yamcs cline:

1. git pull to get my changes

2. make to compile

 in your (quickstart) project:

3. change the Yamcs version to 5.5.3-SNAPSHOT to use the one you just compiled, 

4.  mvn yamcs:run

To view this discussion on the web visit https://groups.google.com/d/msgid/yamcs/78ef76c5-acf8-47e3-9220-073eab60350cn%40googlegroups.com.

[Onur Gürdoğan]

Hi Nicolae,

Thank you very much for you effort and fast response.

I followed every step, in addition I cloned again the master repo from github but I faced this error message while I was trying to run "mvn yamcs:run".

---Starts

12:00:40.261 _global [1] YamcsServer Could not start Yamcs: java.lang.NullPointerException
       java.base/java.io.Reader.<init>(Reader.java:167)
       java.base/java.io.InputStreamReader.<init>(InputStreamReader.java:109)
       org.yamcs.web.WebPlugin.deployWebsiteFromClasspath(WebPlugin.java:119)
       org.yamcs.web.WebPlugin.onLoad(WebPlugin.java:82)
       org.yamcs.PluginManager.loadPlugins(PluginManager.java:113)
       org.yamcs.YamcsServer.start(YamcsServer.java:1174)
       org.yamcs.YamcsServer.main(YamcsServer.java:954)

[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  3.081 s
[INFO] Finished at: 2021-06-23T12:00:40+03:00
[INFO] ------------------------------------------------------------------------

---Ends

23 Haziran 2021 Çarşamba tarihinde saat 00:36:58 UTC+3 itibarıyla Nicolae Mihalache şunları yazdı:

[Nicolae Mihalache]

I think you get the error because if you have to build the yamcs-web, with npm, see the README file in the top yamcs repo.

But you can change the pom.xml in your (quickstart) project to use the snapshot version only for the yamcs-core and keep the yamcs-web to the released version:
   

<properties>

...
   <yamcsVersion>5.5.3</yamcsVersion>
 </properties>

 <dependency>
     <groupId>org.yamcs</groupId>
     <artifactId>yamcs-core</artifactId>
     <version>5.5.3-SNAPSHOT</version>
   </dependency>
   <!-- Add this dependency to enable the web ui. -->
   <dependency>
     <groupId>org.yamcs</groupId>
     <artifactId>yamcs-web</artifactId>
     <version>${yamcsVersion}</version>

   </dependency>
 </dependencies>

To view this discussion on the web visit https://groups.google.com/d/msgid/yamcs/f3d9a0d5-8dcb-477a-a2c9-730c1856af97n%40googlegroups.com.

[Onur Gürdoğan]

Now my pom.xml looks like this:

```xml

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <!--
    Update this to the latest Yamcs release.
    Check https://mvnrepository.com/artifact/org.yamcs/yamcs-core
    -->
    <yamcsVersion>5.5.3</yamcsVersion>
  </properties>

  <dependencies>
    <!-- Yamcs core framework -->

     <dependency>
     <groupId>org.yamcs</groupId>
     <artifactId>yamcs-core</artifactId>
     <version>5.5.3-SNAPSHOT</version>
   </dependency>
   <!-- Add this dependency to enable the web ui. -->
   <dependency>
     <groupId>org.yamcs</groupId>
     <artifactId>yamcs-web</artifactId>

     <version>5.5.1</version>
   </dependency>
  </dependencies>

```

With that configuration it is working, I could be able to run up yamcs server. But, again when I try to send simple TC I get this error :((

STARTS

13:34:10.959 _global [23] RouteHandler 17: Responding '500 Internal Server Error': java.lang.ClassCastException: class org.yamcs.xtce.IntegerParameterTy
pe cannot be cast to class org.yamcs.xtce.ArgumentType (org.yamcs.xtce.IntegerParameterType and org.yamcs.xtce.ArgumentType are in unnamed module of loa
der 'app'): org.yamcs.http.InternalServerErrorException: java.lang.ClassCastException: class org.yamcs.xtce.IntegerParameterType cannot be cast to class
org.yamcs.xtce.ArgumentType (org.yamcs.xtce.IntegerParameterType and org.yamcs.xtce.ArgumentType are in unnamed module of loader 'app')

Caused by: java.lang.ClassCastException: class org.yamcs.xtce.IntegerParameterType cannot be cast to class org.yamcs.xtce.ArgumentType (org.yamcs.xtce.I
ntegerParameterType and org.yamcs.xtce.ArgumentType are in unnamed module of loader 'app')
       org.yamcs.xtceproc.MetaCommandContainerProcessor.encodeRawValue(MetaCommandContainerProcessor.java:123)

13:34:10.963 _global [23] CallObserver Internal server error while handling call: org.yamcs.http.InternalServerErrorException: java.lang.ClassCastExcept
ion: class org.yamcs.xtce.IntegerParameterType cannot be cast to class org.yamcs.xtce.ArgumentType (org.yamcs.xtce.IntegerParameterType and org.yamcs.xt
ce.ArgumentType are in unnamed module of loader 'app')

Caused by: java.lang.ClassCastException: class org.yamcs.xtce.IntegerParameterType cannot be cast to class org.yamcs.xtce.ArgumentType (org.yamcs.xtce.I
ntegerParameterType and org.yamcs.xtce.ArgumentType are in unnamed module of loader 'app')
       org.yamcs.xtceproc.MetaCommandContainerProcessor.encodeRawValue(MetaCommandContainerProcessor.java:123)

13:34:10.964 _global [23] HttpRequestHandler 09a7cc41 POST /api/processors/ARSAT-SG1/realtime/commands/ARSATSG1/PUS_203_7_Command 500

ENDS

Simple Command Example:

<MetaCommand name="PUS_203_7_Command" shortDescription="PUS[203,7] command definition.">

  <CommandContainer name="PUS_203_7_Command_Container">

   <EntryList/>

   <BaseContainer containerRef="CCSDS_Base_PUS_Telemetry_Packet"/>

  </CommandContainer>

</MetaCommand>

CCSDS_Base_PUS_Telemetry_Packet Structure:

<SequenceContainer abstract="true" name="CCSDS_Base_PUS_Telemetry_Packet" shortDescription="CCSDS parent (ECSS PUS) telemetry frame with secondary header fields. Planning to be used for PUS TMs.">

<LongDescription>

- CCSDS based TM parameter implementation which they have secondary header (PUS fields).

- Will be used only by the parameters that contains PUS fields.

- In order to set valid this container, it should be map to CCSDS_Packet_Primary_Header/Secondary_Header_Flag == Present.

</LongDescription>

<EntryList>

<ParameterRefEntry parameterRef="CCSDS_Packet_Secondary_Header"/>

</EntryList>

<BaseContainer containerRef="CCSDS_Base_Telemetry_Packet">

<RestrictionCriteria>

<ComparisonList>

<Comparison value="Present" parameterRef="CCSDS_Packet_Primary_Header/Secondary_Header_Flag" />

</ComparisonList>

</RestrictionCriteria>

</BaseContainer>

</SequenceContainer>

Inside the binary, secondary header fields alwasy gets Present.

CCSDS_Packet_Secondary_Header Structure:

<AggregateParameterType name="CCSDS_Packet_Secondary_Header_Type" shortDescription="Group of the CCSDS Packet Secondary Header parameters.">

<MemberList>

<Member name="TM_Packet_PUS_Version_Number" typeRef="TM_Packet_PUS_Version_Number_Type"/>

<Member name="Spacecraft_Time_Reference_Status" typeRef="Spacecraft_Time_Reference_Status_Type"/>

<Member name="Service_Type_ID" typeRef="Service_Type_ID_Type"/>

<Member name="Sub_Service_Type_ID" typeRef="Sub_Service_Type_ID_Type"/>

<Member name="Message_Type_Counter" typeRef="Message_Type_Counter_Type"/>

<Member name="Destination_ID" typeRef="Destination_ID_Type"/>

<Member name="Time" typeRef="Time_Type"/>

</MemberList>

</AggregateParameterType>

<IntegerParameterType name="Packet_Version_Number_Type" shortDescription="Bits 0–2 of the Packet Primary Header shall contain the (binary encoded) Packet Version Number." initialValue="0">

<UnitSet/>

<IntegerDataEncoding encoding="unsigned" sizeInBits="3" />

</IntegerParameterType>

<BooleanParameterType name="Packet_Type_Type" oneStringValue="TC" zeroStringValue="TM" initialValue="0">

<LongDescription>

The Packet Type shall be used to distinguish Packets used for telemetry (or reporting) from Packets used for telecommand (or requesting).

- For a telemetry (or reporting) Packet, this bit shall be set to ‘0’,

- For a telecommand (or requesting) Packet, this bit shall be set to ‘1’.

</LongDescription>

<UnitSet/>

<IntegerDataEncoding encoding="unsigned" sizeInBits="1"/>

</BooleanParameterType>

<BooleanParameterType name="Secondary_Header_Flag_Type" oneStringValue="Present" zeroStringValue="Not Present">

<LongDescription>

- The Secondary Header Flag shall indicate the presence or absence of the Packet Secondary Header within this Space Packet.

- It shall be ‘1’ if a Packet Secondary Header is present,

- It shall be ‘0’ if a Packet Secondary Header is not present.

- The Secondary Header Flag shall be set to ‘0’ for Idle Packets.

</LongDescription>

<UnitSet/>

<IntegerDataEncoding encoding="unsigned" sizeInBits="1"/>

</BooleanParameterType>

<IntegerParameterType name="APID_Type" shortDescription="The APID (possibly in conjunction with the optional APID Qualifier that identifies the naming domain for the APID) shall provide the naming mechanism for the LDP (logical data path)." signed="false" sizeInBits="11">

<UnitSet/>

<IntegerDataEncoding encoding="unsigned" sizeInBits="11"/>

</IntegerParameterType>

<EnumeratedParameterType name="Sequence_Flags_Type" shortDescription="The Sequence Flags may be used by the user of the Packet Service to indicate that the User Data contained within the Space Packet is a segment of a larger set of application data." initialValue="3">

<UnitSet/>

<IntegerDataEncoding encoding="unsigned" sizeInBits="2"/>

<EnumerationList>

<Enumeration value="0" label="Continuation" />

<Enumeration value="1" label="First" />

<Enumeration value="2" label="Last" />

<Enumeration value="3" label="Standalone" />

</EnumerationList>

</EnumeratedParameterType>

<IntegerParameterType name="Packet_Sequence_Count_Type" shortDescription="The Packet Sequence Count shall provide the sequential binary count of each TC generated by the user application identified by the APID." signed="false" sizeInBits="14">

<UnitSet/>

<IntegerDataEncoding encoding="unsigned" sizeInBits="14"/>

</IntegerParameterType>

<IntegerParameterType name="Packet_Data_Length_Type" signed="false" sizeInBits="16">

<UnitSet>

<Unit>Octets</Unit>

</UnitSet>

<IntegerDataEncoding encoding="unsigned" sizeInBits="16"/>

</IntegerParameterType>

Maybe I need not to use aggregate at all. That is not a problem to me actually..

23 Haziran 2021 Çarşamba tarihinde saat 12:17:03 UTC+3 itibarıyla Nicolae Mihalache şunları yazdı:

[Nicolae Mihalache]

Sorry, it seems I missed something.

Can you update (git pull in the main yamcs repo) and try again?

To view this discussion on the web visit https://groups.google.com/d/msgid/yamcs/20054043-9f4f-4078-ae90-5495f7dd8571n%40googlegroups.com.

[Onur Gürdoğan]

Bad news :(((

Starts

14:18:59.551 _global [25] RouteHandler 15: Responding '500 Internal Server Error': java.lang.ClassCastException: class org.yamcs.xtce.IntegerParameterTy

14:18:59.552 _global [25] CallObserver Internal server error while handling call: org.yamcs.http.InternalServerErrorException: java.lang.ClassCastExcept

14:18:59.552 _global [25] HttpRequestHandler 94c0b6df POST /api/processors/ARSAT-SG1/realtime/commands/ARSATSG1/PUS_203_7_Command 500

Ends

Maybe I am doing something wrong with my xtce..

23 Haziran 2021 Çarşamba tarihinde saat 14:13:51 UTC+3 itibarıyla Nicolae Mihalache şunları yazdı:

[Nicolae Mihalache]

did you run a make after git pull?

To view this discussion on the web visit https://groups.google.com/d/msgid/yamcs/8db446d3-da4c-4ccd-9455-cd431107ed10n%40googlegroups.com.

[Onur Gürdoğan]

I have been running mvn compile. This time I did "make" but nothing has changed :/

Starts

14:52:39.644 _global [30] RouteHandler 19: Responding '500 Internal Server Error': java.lang.ClassCastException: class org.yamcs.xtce.IntegerParameterTy

14:52:39.644 _global [30] CallObserver Internal server error while handling call: org.yamcs.http.InternalServerErrorException: java.lang.ClassCastExcept

14:52:39.645 _global [30] HttpRequestHandler 0c2fe707 POST /api/processors/ARSAT-SG1/realtime/commands/ARSATSG1/PUS_203_7_Command 500

Ends

By the way I am working on:

Operating System: Kubuntu 20.04 on Virtual Machine.

23 Haziran 2021 Çarşamba tarihinde saat 14:34:29 UTC+3 itibarıyla Nicolae Mihalache şunları yazdı:

[Nicolae Mihalache]

From the stacktrace it does not look like you have this source code:

https://github.com/yamcs/yamcs/blob/master/yamcs-core/src/main/java/org/yamcs/xtceproc/MetaCommandContainerProcessor.java#L123

so maybe you did not run git pull?

To view this discussion on the web visit https://groups.google.com/d/msgid/yamcs/655d7037-9e23-4ba3-9977-761eb0130f10n%40googlegroups.com.

[Onur Gürdoğan]

I have done the git pull, but you were right even I did pull java file has not been changed.. Very strange..

Anyway I did clone this time from "https://github.com/yamcs/yamcs.git" then ran the make, it has worked.. I just ran the make, not the mvn clean install and the npm commands.

Strange, I did the pull hundred times....

Thank you very much Nicolae, you are still saving lives ahahahah.

23 Haziran 2021 Çarşamba tarihinde saat 15:06:27 UTC+3 itibarıyla Nicolae Mihalache şunları yazdı: