[Fedor Losev]

There are many cases of code where breakpoint fails in chromium SDK with ‘No enum constant ScopeValue.Type.BLOCK’.

This makes the Webclipse TS/JS debugger almost useless and we have to use chrome dev tools instead.

Here is some code that reproduces the problem (it can happen in various cases)

export class TestClass {

  constructor() { }

  somemethod(param: any = '') {
    console.log(param); //put breakpoint here
    const x = 1;
    return '';
  }
}

const test = new TestClass();
test.somemethod('1');

If one puts a breakpoint on console line, the debugger fails with the error given below. Moreover, it also pauses the page so one has to reload, it is not possible to continue.

If either param: any = '' is changed to param: any or const x = 1; line is removed, the breakpoint works properly.

Full trace of the error from Eclipse log:

java.lang.RuntimeException: org.chromium.sdk.internal.protocolparser.JsonProtocolParseException: Failed to parse type org.chromium.sdk.internal.wip.protocol.input.debugger.PausedEventData
	at org.chromium.sdk.internal.wip.WipCommandProcessor$EventMap$InternalHandler.handle(WipCommandProcessor.java:344)
	at org.chromium.sdk.internal.wip.WipCommandProcessor$EventMap.handleEvent(WipCommandProcessor.java:317)
	at org.chromium.sdk.internal.wip.WipCommandProcessor.processEvent(WipCommandProcessor.java:147)
	at org.chromium.sdk.internal.wip.WipCommandProcessor.access$3(WipCommandProcessor.java:139)
	at org.chromium.sdk.internal.wip.WipCommandProcessor$WipMessageTypeHandler.acceptNonSeq(WipCommandProcessor.java:201)
	at org.chromium.sdk.internal.wip.WipCommandProcessor$WipMessageTypeHandler.acceptNonSeq(WipCommandProcessor.java:1)
	at org.chromium.sdk.internal.BaseCommandProcessor.processIncoming(BaseCommandProcessor.java:110)
	at org.chromium.sdk.internal.wip.WipCommandProcessor.acceptResponse(WipCommandProcessor.java:132)
	at org.chromium.sdk.internal.wip.WipTabImpl$2.textMessageRecieved(WipTabImpl.java:113)
	at org.chromium.sdk.internal.websocket.Hybi17WsConnection$IncomingFrameHandler$1$1.dispatch(Hybi17WsConnection.java:292)
	at org.chromium.sdk.internal.websocket.AbstractWsConnection$8.runImpl(AbstractWsConnection.java:155)
	at org.chromium.sdk.internal.websocket.AbstractWsConnection$8.run(AbstractWsConnection.java:146)
	at java.lang.Thread.run(Unknown Source)
Caused by: org.chromium.sdk.internal.protocolparser.JsonProtocolParseException: Failed to parse type org.chromium.sdk.internal.wip.protocol.input.debugger.PausedEventData
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.TypeHandler.parse(TypeHandler.java:140)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.TypeHandler$AbsentSubtypeAspect.parseFromSuper(TypeHandler.java:252)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.TypeHandler.parseRootImpl(TypeHandler.java:150)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.TypeHandler.parseRoot(TypeHandler.java:145)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.ParserRootImpl$ParseDelegate.invoke(ParserRootImpl.java:173)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.ParserRootImpl$InvocationHandlerImpl.invoke(ParserRootImpl.java:145)
	at com.sun.proxy.$Proxy47.parseDebuggerPausedEventData(Unknown Source)
	at org.chromium.sdk.internal.wip.protocol.input.debugger.PausedEventData$1.parse(PausedEventData.java:31)
	at org.chromium.sdk.internal.wip.protocol.input.debugger.PausedEventData$1.parse(PausedEventData.java:1)
	at org.chromium.sdk.internal.wip.WipCommandProcessor$EventMap$InternalHandler.handle(WipCommandProcessor.java:342)
	... 12 more
Caused by: org.chromium.sdk.internal.protocolparser.JsonProtocolParseException: Failed to parse field callFrames
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.FieldLoader.parse(FieldLoader.java:40)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.TypeHandler.parse(TypeHandler.java:119)
	... 21 more
Caused by: org.chromium.sdk.internal.protocolparser.JsonProtocolParseException: Failed to parse type org.chromium.sdk.internal.wip.protocol.input.debugger.CallFrameValue
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.TypeHandler.parse(TypeHandler.java:140)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.TypeHandler$AbsentSubtypeAspect.parseFromSuper(TypeHandler.java:252)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.TypeHandler.parseRootImpl(TypeHandler.java:150)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.JsonTypeParser.parseValue(JsonTypeParser.java:50)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.JsonTypeParser.parseValue(JsonTypeParser.java:1)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.DynamicParserImpl$ArrayParser$1.create(DynamicParserImpl.java:1199)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.DynamicParserImpl$ArrayParser.parseValue(DynamicParserImpl.java:1365)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.DynamicParserImpl$ArrayParser.parseValue(DynamicParserImpl.java:1)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.FieldLoader.parse(FieldLoader.java:38)
	... 22 more
Caused by: org.chromium.sdk.internal.protocolparser.JsonProtocolParseException: Failed to parse field scopeChain
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.FieldLoader.parse(FieldLoader.java:40)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.TypeHandler.parse(TypeHandler.java:119)
	... 30 more
Caused by: org.chromium.sdk.internal.protocolparser.JsonProtocolParseException: Failed to parse type org.chromium.sdk.internal.wip.protocol.input.debugger.ScopeValue
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.TypeHandler.parse(TypeHandler.java:140)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.TypeHandler$AbsentSubtypeAspect.parseFromSuper(TypeHandler.java:252)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.TypeHandler.parseRootImpl(TypeHandler.java:150)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.JsonTypeParser.parseValue(JsonTypeParser.java:50)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.JsonTypeParser.parseValue(JsonTypeParser.java:1)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.DynamicParserImpl$ArrayParser$1.create(DynamicParserImpl.java:1199)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.DynamicParserImpl$ArrayParser.parseValue(DynamicParserImpl.java:1365)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.DynamicParserImpl$ArrayParser.parseValue(DynamicParserImpl.java:1)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.FieldLoader.parse(FieldLoader.java:38)
	... 31 more
Caused by: org.chromium.sdk.internal.protocolparser.JsonProtocolParseException: Failed to parse field 'type' in type org.chromium.sdk.internal.wip.protocol.input.debugger.ScopeValue
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.DynamicParserImpl$LazyParseFieldMethodHandler.parse(DynamicParserImpl.java:722)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.DynamicParserImpl$LazyParseFieldMethodHandler.parse(DynamicParserImpl.java:713)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.DynamicParserImpl$LazyParseFieldMethodHandler.parseEager(DynamicParserImpl.java:701)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.DynamicParserImpl$EagerFieldParserImpl.parseAllFields(DynamicParserImpl.java:659)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.TypeHandler.parse(TypeHandler.java:135)
	... 39 more
Caused by: org.chromium.sdk.internal.protocolparser.JsonProtocolParseException: Failed to call valueOf method
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.EnumParser.parseValueQuick(EnumParser.java:58)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.EnumParser.parseValueQuick(EnumParser.java:1)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.DynamicParserImpl$LazyParseFieldMethodHandler.parse(DynamicParserImpl.java:720)
	... 43 more
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.GeneratedMethodAccessor57.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.chromium.sdk.internal.protocolparser.dynamicimpl.EnumParser.parseValueQuick(EnumParser.java:52)
	... 45 more
Caused by: java.lang.IllegalArgumentException: No enum constant org.chromium.sdk.internal.wip.protocol.input.debugger.ScopeValue.Type.BLOCK
	at java.lang.Enum.valueOf(Unknown Source)
	at org.chromium.sdk.internal.wip.protocol.input.debugger.ScopeValue$Type.valueOf(ScopeValue.java:1)
	... 49 more

• This topic was modified 7 years, 5 months ago by Fedor Losev.

[support-swapna]

Fedor,

Thank you for the detailed explanation. I have filed it for further investigation with the dev team. We will come back to you if we need more details.

Sorry for inconvenience caused.

–Swapna
MyEclipse Support

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