[ZEPPELIN-2628] NotebookServer.java[onMessage]:377) - Can't handle message com.google.gson.JsonParseException: cannot serialize org.apache.zeppelin.display.Input; did you forget to register a subtype?

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.8.0
• Component/s: zeppelin-server

Environment

Any

• Assignee: Unassigned
• Reporter: Christian Fries
• Created: 08/Jun/17 07:24
• Updated: 28/Jun/17 06:35

Description

I have the following issue with imported notebooks: After import, clicking on the notebook (opening it) will give a page with navbar and blank (grey) notebook content. The log file show the following exceptions:

NotebookServer.java[onMessage]:377) - Can't handle message
com.google.gson.JsonParseException: cannot serialize org.apache.zeppelin.display.Input; did you forget to register a subtype?

(stacktrace see below).

It is not possible to open the notebook. As a workaround you can go to "Jobs" and run the notebook from there. After the notebook has run, it opens without problems.
The error appears again if the notebook is exported to JSON and re-imported again.

For testing:

• I have attached a notebook which JSON which shows the behaviour.
• The attached notebook requires net.finmath:finmath-lib:2.4.2. in the spark interpreter and the Helium packages of ultimate-scatter-plot.

Stacktrace:

 INFO [2017-06-07 18:04:56,233] ({qtp1096283470-152} NotebookServer.java[sendNote]:799) - New operation from 185.111.192.4 : 59047 : fries : GET_NOTE : 2CE928E12
ERROR [2017-06-07 18:04:56,234] ({qtp1096283470-152} NotebookServer.java[onMessage]:377) - Can't handle message
com.google.gson.JsonParseException: cannot serialize org.apache.zeppelin.display.Input; did you forget to register a subtype?
        at org.apache.zeppelin.display.RuntimeTypeAdapterFactory$1.write(RuntimeTypeAdapterFactory.java:129)
        at com.google.gson.TypeAdapter$1.write(TypeAdapter.java:191)
        at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68)
        at com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.write(MapTypeAdapterFactory.java:209)
        at com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.write(MapTypeAdapterFactory.java:146)
        at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68)
        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:89)
        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:195)
        at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68)
        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:89)
        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:195)
        at com.google.gson.TypeAdapter.toJsonTree(TypeAdapter.java:230)
        at org.apache.zeppelin.json.NotebookTypeAdapterFactory$1.write(NotebookTypeAdapterFactory.java:58)
        at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68)
        at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.write(CollectionTypeAdapterFactory.java:96)
        at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.write(CollectionTypeAdapterFactory.java:60)
        at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68)
        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:89)
        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:195)
        at com.google.gson.internal.bind.ObjectTypeAdapter.write(ObjectTypeAdapter.java:105)
        at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68)
        at com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.write(MapTypeAdapterFactory.java:209)
        at com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.write(MapTypeAdapterFactory.java:146)
        at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68)
        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:89)
        at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:195)
        at com.google.gson.Gson.toJson(Gson.java:582)
        at com.google.gson.Gson.toJson(Gson.java:561)
        at com.google.gson.Gson.toJson(Gson.java:516)
        at com.google.gson.Gson.toJson(Gson.java:496)
        at org.apache.zeppelin.socket.NotebookServer.serializeMessage(NotebookServer.java:414)
        at org.apache.zeppelin.socket.NotebookServer.sendNote(NotebookServer.java:823)
        at org.apache.zeppelin.socket.NotebookServer.onMessage(NotebookServer.java:243)
        at org.apache.zeppelin.socket.NotebookSocket.onWebSocketText(NotebookSocket.java:59)
        at org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onTextMessage(JettyListenerEventDriver.java:128)
        at org.eclipse.jetty.websocket.common.message.SimpleTextMessage.messageComplete(SimpleTextMessage.java:69)
        at org.eclipse.jetty.websocket.common.events.AbstractEventDriver.appendMessage(AbstractEventDriver.java:65)
        at org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onTextFrame(JettyListenerEventDriver.java:122)
        at org.eclipse.jetty.websocket.common.events.AbstractEventDriver.incomingFrame(AbstractEventDriver.java:161)
        at org.eclipse.jetty.websocket.common.WebSocketSession.incomingFrame(WebSocketSession.java:309)
        at org.eclipse.jetty.websocket.common.extensions.ExtensionStack.incomingFrame(ExtensionStack.java:214)
        at org.eclipse.jetty.websocket.common.Parser.notifyFrame(Parser.java:220)
        at org.eclipse.jetty.websocket.common.Parser.parse(Parser.java:258)
        at org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.readParse(AbstractWebSocketConnection.java:632)
        at org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onFillable(AbstractWebSocketConnection.java:480)
        at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
        at java.lang.Thread.run(Thread.java:748)

Issue Links

• is related to: ZEPPELIN-2652 Can't open spark tutorial note in 0.8.0-SNAPSHOT
• links to: GitHub Pull Request #2420