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grpc / grpc-java / #20291
89%

Build:
DEFAULT BRANCH: master
Ran 24 May 2026 08:26PM UTC
Jobs 1
Files 653
Run time 1min
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22 May 2026 06:37PM UTC coverage: 88.86% (+0.02%) from 88.837%
#20291

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github

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core: throw IOException when ProxySelector returns null or empty list (#12793)

ProxySelector.select(URI) is contractually required to return a non-null, non-empty list. Some implementations violate this, which previously caused an opaque crash in ProxyDetectorImpl:

```
java.lang.IndexOutOfBoundsException: Index: 0
    at java.util.Collections$EmptyList.get
    at io.grpc.internal.ProxyDetectorImpl.detectProxy
```

Detect this case explicitly and throw an IOException naming the offending ProxySelector class, so a broken implementation can be identified and fixed by its author rather than silently worked around in every caller.

36286 of 40835 relevant lines covered (88.86%)

0.89 hits per line

Coverage Regressions

Lines Coverage ∆ File
2
81.05
-2.11% ../okhttp/src/main/java/io/grpc/okhttp/ExceptionHandlingFrameWriter.java
1
83.87
1.11% ../core/src/main/java/io/grpc/internal/ProxyDetectorImpl.java
1
86.49
-0.22% ../inprocess/src/main/java/io/grpc/inprocess/InProcessTransport.java
1
93.83
-0.62% ../opentelemetry/src/main/java/io/grpc/opentelemetry/OpenTelemetryMetricSink.java
1
74.23
-1.03% ../servlet/src/main/java/io/grpc/servlet/AsyncServletOutputStreamWriter.java
Jobs
ID Job ID Ran Files Coverage
1 #20291.1 24 May 2026 08:26PM UTC 653
88.86
Source Files on build #20291
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  • Changed 12
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  • Coverage Changed 12
Coverage ∆ File Lines Relevant Covered Missed Hits/Line
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