Null checking applied

[jack-berg]

Here's what it looks like to apply the policy described in #8318.

[codecov]

Codecov Report

❌ Patch coverage is 51.51311% with 721 lines in your changes missing coverage. Please review.
✅ Project coverage is 88.51%. Comparing base (3351182) to head (cb151e8).

Files with missing lines	Patch %	Lines
...ava/io/opentelemetry/api/metrics/DefaultMeter.java	22.88%	45 Missing and 46 partials ⚠️
...ry/api/incubator/metrics/ExtendedDefaultMeter.java	22.88%	45 Missing and 46 partials ⚠️
...ensusshim/OpenTelemetryNoRecordEventsSpanImpl.java	0.00%	49 Missing and 11 partials ⚠️
...pi/incubator/config/InstrumentationConfigUtil.java	0.00%	28 Missing and 14 partials ⚠️
...ava/io/opentelemetry/api/trace/PropagatedSpan.java	11.11%	20 Missing and 20 partials ⚠️
...etry/api/incubator/logs/ExtendedDefaultLogger.java	0.00%	16 Missing and 14 partials ⚠️
...ava/io/opentelemetry/opentracingshim/SpanShim.java	10.34%	17 Missing and 9 partials ⚠️
...io/opentelemetry/sdk/logs/SdkLogRecordBuilder.java	0.00%	17 Missing and 9 partials ⚠️
.../java/io/opentelemetry/api/logs/DefaultLogger.java	0.00%	12 Missing and 12 partials ⚠️
...pentelemetry/sdk/trace/ExtendedSdkSpanBuilder.java	0.00%	16 Missing and 8 partials ⚠️
... and 50 more

❌ Your patch check has failed because the patch coverage (51.51%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.
❌ Your project check has failed because the head coverage (78.68%) is below the target coverage (80.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #8321      +/-   ##
============================================
- Coverage     90.88%   88.51%   -2.37%     
- Complexity     7986     8009      +23     
============================================
  Files           898      898              
  Lines         24115    25495    +1380     
  Branches       2412     2684     +272     
============================================
+ Hits          21916    22567     +651     
- Misses         1456     1903     +447     
- Partials        743     1025     +282     

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