Don't log full exception stack for expected NPE in noticeTracer

[jasonjkeller]

Resolves #2141

There's a point early in the agent's lifecycle where the ProfilerService service is not yet initialized that can result in the agent logging the following exception stack:

2024-11-12T16:05:05,468-0800 [22649 36] com.newrelic.agent.instrumentation.ClassTransformerServiceImpl FINEST: exception in noticeTracer: null. This may affect thread profile v2.
java.lang.NullPointerException: Cannot invoke "com.newrelic.agent.profile.ProfilerService.getTransactionProfileService()" because the return value of "com.newrelic.agent.service.ServiceFactory.getProfilerService()" is null
	at com.newrelic.agent.instrumentation.InstrumentationImpl.noticeTracer(InstrumentationImpl.java:381) [newrelic-agent-8.15.0.jar:8.15.0]
	at com.newrelic.agent.instrumentation.InstrumentationImpl.createTracer(InstrumentationImpl.java:199) [newrelic-agent-8.15.0.jar:8.15.0]
	at java.lang.ProcessImpl.waitFor(ProcessImpl.java) [?:?]
	at com.newrelic.agent.utilization.DataFetcher.executeCommand(DataFetcher.java:241) [newrelic-agent-8.15.0.jar:8.15.0]
	at com.newrelic.agent.utilization.DataFetcher.access$000(DataFetcher.java:33) [newrelic-agent-8.15.0.jar:8.15.0]
	at com.newrelic.agent.utilization.DataFetcher$1.call(DataFetcher.java:65) [newrelic-agent-8.15.0.jar:8.15.0]
	at com.newrelic.agent.utilization.DataFetcher$1.call(DataFetcher.java:42) [newrelic-agent-8.15.0.jar:8.15.0]
	at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) [?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) [?:?]
	at java.lang.Thread.run(Thread.java:833) [?:?]

Since this is not indicative of a real problem it doesn't seem necessary to always log an exception stack that muddies up the agent logs. This PR changes the logging to just log the message so that it's less alarming:

2024-11-13T14:39:48,969-0800 [45830 44] com.newrelic.agent.instrumentation.ClassTransformerServiceImpl FINEST: Exception in noticeTracer. This may affect thread profile v2. Tracer: null. Error message: Cannot invoke "com.newrelic.agent.profile.ProfilerService.getTransactionProfileService()" because the return value of "com.newrelic.agent.service.ServiceFactory.getProfilerService()" is null

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 16.66667% with 5 lines in your changes missing coverage. Please review.

Project coverage is 70.70%. Comparing base (305a4d9) to head (aa52824).
Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
...lic/agent/instrumentation/InstrumentationImpl.java	16.66%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #2143   +/-   ##
=========================================
  Coverage     70.69%   70.70%           
+ Complexity     9985     9982    -3     
=========================================
  Files           841      841           
  Lines         40290    40291    +1     
  Branches       6107     6107           
=========================================
+ Hits          28485    28487    +2     
+ Misses         9062     9059    -3     
- Partials       2743     2745    +2     

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