Telemetry can be obfuscated but is looked up reflectively via EnumSet

[ZacSweers]

Describe the bug

Bugsnag can fail to initialize when loading on startup in an obfuscated/minified app because Telemetry is loaded into an EnumSet her:

This results in a runtime crash like so:

Caused by: java.lang.RuntimeException: java.lang.NoSuchMethodException: com.bugsnag.android.b1.values []
                                at java.lang.Enum.enumValues(Enum.java:315)
                                at java.lang.Enum.-$$Nest$smenumValues(Unknown Source:0)
                                at java.lang.Enum$1.create(Enum.java:322)
                                at java.lang.Enum$1.create(Enum.java:320)
                                at libcore.util.BasicLruCache.get(BasicLruCache.java:63)
                                at java.lang.Enum.getSharedConstants(Enum.java:334)
                                at java.lang.Class.getEnumConstantsShared(Class.java:4036)
                                at java.util.EnumSet.getUniverse(EnumSet.java:410)
                                at java.util.EnumSet.noneOf(EnumSet.java:112)
                                at java.util.EnumSet.of(EnumSet.java:238)
                                at com.bugsnag.android.s.<init>(Unknown Source:128)
                                at A.M.<init>(SourceFile:11)
                                at com.bugsnag.android.l.h(Unknown Source:4)
                                at dev.zacsweers.fieldspottr.MainActivity.onCreate(Unknown Source:26)

Worse still, because this happens during initialization, it will never be reported!

Environment

• Android version: N/A
• Bugsnag version: 6.6.0
• Emulator or physical device: N/A

The solution would either to be to bundle consumer proguard rules that keep this enum, annotate it with @Keep, or consider moving off of EnumSet usage.

[lemnik]

Hi @ZacSweers. Thanks so much for reporting this, we'll get some rules in place in the next release.