Performance SDK has hidden method log spam

[READ] Step 1: Are you in the right place?

Issues filed here should be about bugs in the code in this repository. If you have a general question, need help debugging, or fall into some other category use one of these other channels:

• For general technical questions, post a question on StackOverflow with the firebase tag.
• For general Firebase discussion, use the firebase-talk google group.
• For help troubleshooting your application that does not fall under one of the above categories, reach out to the personalized Firebase support channel.

[REQUIRED] Step 2: Describe your environment

• Android Studio version: 3.5.3_
• Firebase Component: performance: 19.0.2, core: 17.2.1

[REQUIRED] Step 3: Describe the problem

Steps to reproduce:

Any performance action (app startup, moving between screens, etc.) causes the following log spam on Android 9.0 or above:

W/com.foo.bar: Accessing hidden method Lsun/misc/Unsafe;->getInt(Ljava/lang/Object;J)I (greylist, linking, allowed)
W/com.foo.bar: Accessing hidden method Lsun/misc/Unsafe;->getInt(Ljava/lang/Object;J)I (greylist, linking, allowed)
W/com.foo.bar: Accessing hidden method Lsun/misc/Unsafe;->putInt(Ljava/lang/Object;JI)V (greylist, linking, allowed)
W/com.foo.bar: Accessing hidden method Lsun/misc/Unsafe;->getLong(Ljava/lang/Object;J)J (greylist,core-platform-api, linking, allowed)
W/com.foo.bar: Accessing hidden method Lsun/misc/Unsafe;->putLong(Ljava/lang/Object;JJ)V (greylist, linking, allowed)
W/com.foo.bar: Accessing hidden method Lsun/misc/Unsafe;->putInt(Ljava/lang/Object;JI)V (greylist, linking, allowed)

This happens very frequently and pollutes our logcat. It seems like either firebase or one of its dependencies is accessing hidden methods. See this documentation for details. This also causes problems in strict mode.

Relevant Code:

Only thing needed is to import firebase performance as a dependency.

[hoppr]

Yes same issue in Logs W/FirebaseRemoteConfig: No value of type ‘FirebaseRemoteConfigValue’ exists for parameter key ‘fpr_session_max_duration_min’. 2020-02-26 13:57:33.995 6138-6138/

[mkotyk-godaddy]

We’re also seeing this issue. Please re-open.

implementation 'com.google.firebase:firebase-perf:19.0.5' implementation 'com.google.firebase:firebase-messaging:20.1.0' implementation 'com.google.firebase:firebase-analytics:17.2.2'

Logcat output> W/godaddy.polari: Accessing hidden method Lsun/misc/Unsafe;->getObject(Ljava/lang/Object;J)Ljava/lang/Object; (greylist, linking, allowed) Accessing hidden method Lsun/misc/Unsafe;->putObject(Ljava/lang/Object;JLjava/lang/Object;)V (greylist, linking, allowed) W/FirebaseRemoteConfig: No value of type 'FirebaseRemoteConfigValue' exists for parameter key 'fpr_session_max_duration_min'. W/godaddy.polari: Accessing hidden method Lsun/misc/Unsafe;->getInt(Ljava/lang/Object;J)I (greylist, linking, allowed) Accessing hidden method Lsun/misc/Unsafe;->putInt(Ljava/lang/Object;JI)V (greylist, linking, allowed) Accessing hidden method Lsun/misc/Unsafe;->getLong(Ljava/lang/Object;J)J (greylist,core-platform-api, linking, allowed) Accessing hidden method Lsun/misc/Unsafe;->putLong(Ljava/lang/Object;JJ)V (greylist, linking, allowed)