Native Java stacktraces from PlatformExceptions have a trailing empty stack frame

[ueman]

Platform

Flutter Mobile

Obfuscation

Disabled

Debug Info

Disabled

Doctor

Version

7.4.2

Steps to Reproduce

1. Get a native Java stacktrace via PlatformException
2. Report it to Sentry

Expected Result

No trailing empty stack frame

Actual Result

Are you willing to submit a PR?

None

[marandaneto]

Thanks @ueman
Do you have access to the raw stack trace or a link to sentry.io so I can take a look?

[ueman]

The Java stacktrace part of the event is the following

{
    "type": "IllegalArgumentException",
    "value": "Unsupported value: '[Ljava.lang.StackTraceElement;@c50d178' of type 'class [Ljava.lang.StackTraceElement;'",
    "module": "java.lang",
    "stacktrace": {
        "frames": [
            {
                "platform": "java",
                "in_app": false,
                "data": {
                    "orig_in_app": -1
                }
            },
            {
                "function": "main",
                "module": "com.android.internal.os.ZygoteInit",
                "filename": "ZygoteInit.java",
                "abs_path": "ZygoteInit.java",
                "lineno": 1129,
                "platform": "java",
                "in_app": false,
                "data": {
                    "category": "system"
                }
            },
            {
                "function": "run",
                "module": "com.android.internal.os.RuntimeInit$MethodAndArgsCaller",
                "filename": "RuntimeInit.java",
                "abs_path": "RuntimeInit.java",
                "lineno": 614,
                "platform": "java",
                "in_app": false,
                "data": {
                    "category": "internals"
                }
            },
            {
                "function": "invoke",
                "module": "java.lang.reflect.Method",
                "platform": "java",
                "in_app": false,
                "data": {
                    "category": "indirection"
                }
            },
            {
                "function": "main",
                "module": "android.app.ActivityThread",
                "filename": "ActivityThread.java",
                "abs_path": "ActivityThread.java",
                "lineno": 9105,
                "platform": "java",
                "in_app": false,
                "data": {
                    "category": "threadbase"
                }
            },
            {
                "function": "loop",
                "module": "android.os.Looper",
                "filename": "Looper.java",
                "abs_path": "Looper.java",
                "lineno": 228,
                "platform": "java",
                "in_app": false,
                "data": {
                    "category": "threadbase"
                }
            },
            {
                "function": "dispatchMessage",
                "module": "android.os.Handler",
                "filename": "Handler.java",
                "abs_path": "Handler.java",
                "lineno": 102,
                "platform": "java",
                "in_app": false,
                "data": {
                    "category": "threadbase"
                }
            },
            {
                "function": "handleCallback",
                "module": "android.os.Handler",
                "filename": "Handler.java",
                "abs_path": "Handler.java",
                "lineno": 955,
                "platform": "java",
                "in_app": false,
                "data": {
                    "category": "threadbase"
                }
            },
            {
                "function": "run",
                "module": "y8.b",
                "filename": "Unknown Source",
                "abs_path": "Unknown Source",
                "lineno": 12,
                "platform": "java",
                "in_app": false
            },
            {
                "function": "i",
                "module": "y8.c",
                "filename": "Unknown Source",
                "abs_path": "Unknown Source",
                "lineno": 0,
                "platform": "java",
                "in_app": false
            },
            {
                "function": "m",
                "module": "y8.c",
                "filename": "DartMessenger.java",
                "abs_path": "DartMessenger.java",
                "lineno": 3,
                "platform": "java",
                "in_app": false
            },
            {
                "function": "l",
                "module": "y8.c",
                "filename": "DartMessenger.java",
                "abs_path": "DartMessenger.java",
                "lineno": 2,
                "platform": "java",
                "in_app": false
            },
            {
                "function": "a",
                "module": "l9.j$a",
                "filename": "MethodChannel.java",
                "abs_path": "MethodChannel.java",
                "lineno": 2,
                "platform": "java",
                "in_app": false
            },
            {
                "function": "onMethodCall",
                "module": "com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin",
                "filename": "FlutterLocalNotificationsPlugin.java",
                "abs_path": "FlutterLocalNotificationsPlugin.java",
                "lineno": 21,
                "platform": "java",
                "in_app": false
            },
            {
                "function": "getNotificationChannels",
                "module": "com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin",
                "filename": "FlutterLocalNotificationsPlugin.java",
                "abs_path": "FlutterLocalNotificationsPlugin.java",
                "lineno": 9,
                "platform": "java",
                "in_app": false
            },
            {
                "function": "error",
                "module": "l9.j$a$a",
                "filename": "MethodChannel.java",
                "abs_path": "MethodChannel.java",
                "lineno": 1,
                "platform": "java",
                "in_app": false
            },
            {
                "function": "d",
                "module": "l9.r",
                "filename": "StandardMethodCodec.java",
                "abs_path": "StandardMethodCodec.java",
                "lineno": 7,
                "platform": "java",
                "in_app": false
            },
            {
                "function": "p",
                "module": "l9.q",
                "filename": "StandardMessageCodec.java",
                "abs_path": "StandardMessageCodec.java",
                "lineno": 67,
                "platform": "java",
                "in_app": false
            }
        ]
    },
    "thread_id": 213252219
}

[marandaneto]

The reason is the 1st frame:

{
                "platform": "java",
                "in_app": false,
                "data": {
                    "orig_in_app": -1
                }
}

So the parsing algo has to consider that if the frame does not have any useful data, eg function, module, filename, etc, just discard it.

[ueman]

Yep, I agree