vmArgs in launch.json does not accept an array of strings

When configuring a java debugger target, in launch.json, it seems that vmArgs does not accept an array of strings. Note that I've configured vmArgs in the linux section as well.

Environment

Operating System: Linux
JDK version: 13
Visual Studio Code version: latest as of 2020-03-16
Java extension version: I've installed the java pack.

Backtrace:

java.lang.IllegalStateException: Expected STRING but was BEGIN_ARRAY at path $.vmArgs
com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected STRING but was BEGIN_ARRAY at path $.vmArgs
	at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:224)
	at com.google.gson.Gson.fromJson(Gson.java:888)
	at com.google.gson.Gson.fromJson(Gson.java:953)
	at com.google.gson.Gson.fromJson(Gson.java:926)
	at com.microsoft.java.debug.core.protocol.JsonUtils.fromJson(JsonUtils.java:34)
	at com.microsoft.java.debug.core.adapter.DebugAdapter.dispatchRequest(DebugAdapter.java:76)
	at com.microsoft.java.debug.core.adapter.ProtocolServer.dispatchRequest(ProtocolServer.java:118)
	at com.microsoft.java.debug.core.protocol.AbstractProtocolServer.lambda$new$0(AbstractProtocolServer.java:78)
	at io.reactivex.internal.observers.LambdaObserver.onNext(LambdaObserver.java:60)
	at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.drainNormal(ObservableObserveOn.java:200)
	at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.run(ObservableObserveOn.java:252)
	at io.reactivex.internal.schedulers.ScheduledRunnable.run(ScheduledRunnable.java:61)
	at io.reactivex.internal.schedulers.ScheduledRunnable.call(ScheduledRunnable.java:52)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:830)
Caused by: java.lang.IllegalStateException: Expected STRING but was BEGIN_ARRAY at path $.vmArgs
	at com.google.gson.internal.bind.JsonTreeReader.nextString(JsonTreeReader.java:180)
	at com.google.gson.internal.bind.TypeAdapters$16.read(TypeAdapters.java:401)
	at com.google.gson.internal.bind.TypeAdapters$16.read(TypeAdapters.java:389)
	at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:129)
	at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:220)
	... 17 more

please share your launch.json and the version of Debugger for Java extension.

{
   // Use IntelliSense to learn about possible attributes.
   // Hover to view descriptions of existing attributes.
   // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
   "version": "0.2.0",
   "configurations": [
      {
         "type": "java",
         "name": "BitwigStudio - Debug",
         "request": "launch",
         "mainClass": "com.bitwig.flt.app.BitwigStudioMain",
         "projectName": "float-main-app",
         "cwd": "${workspaceFolder}/float/app/gui/main-app",
         "vmArgs": [
            "-ea",
            "-Xmx1024m", "-Xms256m", "-Xss24m", "-XX:MaxPermSize=256m", "-XX:-UseLoopPredicate",
         ],
         "linux": {
            "vmArgs": [
               "-XX:ErrorFile=${HOME}/.BitwigStudio/bitwig-studio-jvm-crash.log",
               "-DvampExecutable=${workspaceFolder}/cmake-builds/debug-64/bin/BitwigVampHost",
               "-DvampPath=${workspaceFolder}/cmake-builds/debug-64/vamp-plugins",
               "-DengineExecutable=${workspaceFolder}/cmake-builds/debug-64/bin/BitwigAudioEngine",
               "-DpluginHostExecutable32=${workspaceFolder}/cmake-builds/debug-32/bin/BitwigPluginHost",
               "-DpluginHostExecutable64=${workspaceFolder}/cmake-builds/debug-64/bin/BitwigPluginHost",
               "-DwindowingSystems=com.bitwig.x11_windowing_system.X11WindowingSystem",
               "-Dshow-file-dialog-command=${workspaceFolder}/float/installer/src/main/distribution-linux/bin/show-file-dialog-gtk3"
            ]
         },
      },
      {
         "type": "lldb",
         "request": "launch",
         "name": "AudioEngine",
         "program": "cmake-builds/code/bin/BitwigAudioEngine",
         "cwd": "${workspaceRoot}"
      }
   ]
}

I have Debugger for Java version 0.25.1

thanks for the info. i can reproduce the issue. The reason is the debugger doesn't well handle the OS specific attribute (e.g. "linux": { "vmArgs": [] } ) in launch.json. Currently, the workaround is to remove the linux specific vmArgs first.

Navigation Menu

Repository navigation

vmArgs in launch.json does not accept an array of strings #778

Environment

Backtrace:

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

vmArgs in launch.json does not accept an array of strings #778

Description

Environment

Backtrace:

Activity

testforstephen commented on Mar 17, 2020

abique commented on Mar 17, 2020

abique commented on Mar 17, 2020

testforstephen commented on Mar 18, 2020

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions