GMS Failures System

Failure Analysis Report¶

Cluster Summary¶

Property	Value
Cluster ID	#5
Severity	High
Category	Test Case Issue
Confidence	5/5
Impact	1 failures

System Information¶

Property	Value
Fingerprint	Trimble/T70/thorpe:15/AQ3A.250408.001/02.00.20.251106:user/release-keys
Build ID	AQ3A.250408.001
Product	T70
Model	T70
Android Version	15
Security Patch	2025-10-01
Test Suite	CTS

AI Analysis¶

Summary:
IllegalAccessError due to access violation in protobuf classes
The test 'testSystemServerLossErrorCode' in the MetadataTests class failed due to an IllegalAccessError. This error occurred because the class android.aconfig.Aconfig$parsed_flag attempted to access the private method 'emptyList()' of the LazyStringArrayList class from the protobuf library, which is not permitted due to Java's access control.

Root Cause:

The test failed because of an IllegalAccessError caused by an attempt to access a private method from a class in an unnamed module.

Suggested Solution:
Review the access modifiers of the LazyStringArrayList class and ensure that any required methods are publicly accessible or refactor the code to avoid such access violations. Additionally, check for version compatibility between the protobuf library and the code that uses it to ensure that no breaking changes exist.

Technical Details¶

Stack Trace Signature:

com.google.common.util.concurrent.ExecutionError: java.lang.IllegalAccessError: class android.aconfig.Aconfig$parsed_flag tried to access method 'com.google.protobuf.LazyStringArrayList com.google.protobuf.LazyStringArrayList.emptyList()' (android.aconfig.Aconfig$parsed_flag and com.google.protobuf.LazyStringArrayList are in unnamed module of loader 'app')
    at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2083)
    at com.google.common.cache.LocalCache.get(LocalCache.java:4017)
    at

Affected Test Cases¶

Failure 1¶

• Module: CtsStatsdHostTestCases[instant]
• Test Case: android.cts.statsd.metadata.MetadataTests#testSystemServerLossErrorCode
• Stack Trace:

com.google.common.util.concurrent.ExecutionError: java.lang.IllegalAccessError: class android.aconfig.Aconfig$parsed_flag tried to access method 'com.google.protobuf.LazyStringArrayList com.google.protobuf.LazyStringArrayList.emptyList()' (android.aconfig.Aconfig$parsed_flag and com.google.protobuf.LazyStringArrayList are in unnamed module of loader 'app')
    at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2083)
    at com.google.common.cache.LocalCache.get(LocalCache.java:4017)
    at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:4040)
    at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4989)
    at android.platform.test.flag.junit.host.HostFlagsValueProvider.setUp(HostFlagsValueProvider.java:88)
    at android.platform.test.flag.junit.CheckFlag
...
(truncated)

Failure 2¶

• Module: CtsStatsdHostTestCases[instant]
• Test Case: android.cts.statsd.metadata.MetadataTests#testSystemServerLossErrorCode
• Stack Trace:

com.google.common.util.concurrent.ExecutionError: java.lang.IllegalAccessError: class android.aconfig.Aconfig$parsed_flag tried to access method 'com.google.protobuf.LazyStringArrayList com.google.protobuf.LazyStringArrayList.emptyList()' (android.aconfig.Aconfig$parsed_flag and com.google.protobuf.LazyStringArrayList are in unnamed module of loader 'app')
    at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2083)
    at com.google.common.cache.LocalCache.get(LocalCache.java:4017)
    at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:4040)
    at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4989)
    at android.platform.test.flag.junit.host.HostFlagsValueProvider.setUp(HostFlagsValueProvider.java:88)
    at android.platform.test.flag.junit.CheckFlag
...
(truncated)