Fix missing class errors #5795
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Fix missing class errors #5795
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anuraaga
approved these changes
Apr 11, 2022
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| public static AgentLocationStrategy locationStrategy() { | ||
| return locationStrategy(null); | ||
| return LOCATION_STRATEGY; |
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Just to confirm the fix is to not pass null in this codepath?
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Yes. The problem is probably that wildfly class loader doesn't unconditionally delegate resource lookups to system loader and isn't able to find resources that are in agent jar. Previously it worked because in AgentLocationStrategy we added ClassFileLocator for all parent class loaders, which included system class loader, where the agent is initially loaded. To make resources from agent jar visible we need to add a ClassFileLocator with bootstrap proxy.
laurit
reviewed
Apr 11, 2022
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| public static AgentLocationStrategy locationStrategy() { | ||
| return locationStrategy(null); | ||
| return LOCATION_STRATEGY; | ||
| } | ||
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| public static AgentLocationStrategy locationStrategy(ClassLoader bootstrapProxy) { |
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I believe we can remove this method
laurit
approved these changes
Apr 11, 2022
mateuszrzeszutek
approved these changes
Apr 11, 2022
This was referenced Apr 11, 2022
RashmiRam
pushed a commit
to RashmiRam/opentelemetry-auto-instr-java
that referenced
this pull request
May 23, 2022
Co-authored-by: Lauri Tulmin <ltulmin@splunk.com>
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I pulled #5724 into our distro to check out the startup perf improvements and ran into some smoke test failures on Wildfly 11, e.g. below stack trace.
I'll open a tracking issue to investigate why the wildfly smoke tests in this repo didn't catch this, maybe we need a bit more instrumentation (e.g. otel-api) in the servlet test app.